M-5B-1/U (Type 20) List of Contents M-5B-1/U. 4 analog inputs, 1 analog output, 14 TTL outputs for connecting 5B transducers

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1 M-5B-/U (Type 20) List of Contents 3-3. M-5B-/U 4 analog inputs, analog output, 4 TTL outputs for connecting 5B transducers Functional description 3-3 Calibrating the module Block diagram Technical data Connecting 5B Transducers Scope of delivery Configuration and Installation 3-0 Configuration plan Jumper settings...3- EEPROM contents...3-3

2 3-2 M-5B-/U (Type 20) List of Contents Plug connector assignments 3-25 High-level-language library 3-27 Programming with I/O access operations 3-39 Local I/O addresses Hints on programming Index for M-5B-/U 3-422

3 M-5B-/U (Type 20) Functional Description 3-3 Functional description The M-5B-/U module contains the following functional units: 4 analog inputs, 2-bit resolution Programmable as four single-ended inputs or two single-ended inputs and one differential input Input voltage ranges 0 to 5 V and ± 5 V software-selectable Conversion time 2 µs Correction values for digital calibration on the module (in the EEPROM) analog output, 2-bit resolution Output ranges 0 to 5 V and ±5 V can be set by means of jumpers. Moreover, a range of 0 to 0 V can also be set which, however, can only be utilized from 0 to approx. 9.3 V, due to the PC s voltage supply of ±2 V Correction values for digital calibration on the module (in the EEPROM) Actual value of voltage can be checked at the output, using an analog input Short-circuit-proof 4 digital outputs Can be addressed as 2 x 6 bits and 2 x bit TTL-compatible EEPROM for storing initialization data and correction values The M-5B-/U module is particularly suitable for simple connection of 5B transducers to the MODULAR-4 board (see Page 3-7).

4 3-4 M-5B-/U (Type 20) Calibrating the Module Calibrating the module The M-5B-/U module has been calibrated in the factory with two potentiometers. To compensate for slight differences between the inputs, there is an option for digitally correcting the values measured using the software. The correction values needed for this purpose (GAIN and OFFSET) are stored in the module s EEPROM for each channel. Calibration is performed in accordance with the following formula for both voltage ranges: X KOR = ( X M + OFFSET) + GAIN 4096 The correction factors GAIN and OFFSET are determined by means of two measurements. Note that two reference voltages (REF and REF 2 ) are fed in consecutively, and measured with the M-5B-/U (ACT and ACT 2 ). From this the correction factors for GAIN and OFFSET can be calculated, using the formula below. REF2 REF GAIN = ACT2 ACT ACT2 ACT OFFSET = SOLL ACT REF REF 2

5 M-5B-/U (Type 20) Block Diagram 3-5 Block diagram AIN-0 AIN- AIN-2 AIN Multiplexer ± 5V 0..5V B2 + - AOUT-0 A/D Converter w. Sample & Hold D/A Converter Latch... DOUT DOUT-25 EEPROM Read- Monoflop Write- Monoflop Latch... DOUT-0... DOUT-5 DOUT- DOUT-0 SP-Bus-Interface

6 3-6 M-5B-/U (Type 20) Technical Data Technical data Parameter Value Unit Analog inputs, number of Resolution Input ranges 2 Linearity Conversion time, typically / max. Analog outputs, number of Resolution Output ranges ± 0 / 2 - bit - LSB µs bit - Linearity ± LSB TTL outputs 4 - Power consumption 4 : +5V (±5%), typically +2V (±5%), typically -2V (±5%), typically Operating temperature Dimensions (L x W x H) to x 45 x 5 MA ma ma C mm The module has three analog inputs, which can be measured as single-ended inputs. In addition, the voltage difference between two of these inputs can also be measured. Two ranges can be set using the software: 0 to 5 V and ±5 V. 0 to 5 V, however, can be selected only for the differential input. Three ranges can be set per jumper: 0 to 5 V, ±5 V and 0 to 0 V (due to PC voltage supply of ±2 V, can be used only from 0 to approx. 9.3 V). All outputs to logic 0 or 0 V, all inputs to GND.

7 M-5B-/U (Type 20) Connecting 5B Transducers 3-7 Connecting 5B Transducers The M-5B-/U module has been specifically developed for simple connection of 5B transducers to the MODULAR-4 board. The inputs and outputs of the M-5B-/U module are used for controlling and evaluating the 5B transducers and for this purpose are given special designations: Input/Output AIN-0, AIN- AOUT-0 DOUT-0 DOUT- DOUT-0 to -5 DOUT-20 to -25 Function / Designation These two inputs form a differential input with softwareselectable voltage range (±5 V or 0 to 5 V) on the module. The differential input is used for measuring a voltage from a 5B transducer. Designation: AD (for analog/digital converter). Output for feeding a voltage to a 5B transducer (output). Designation: DA (for digital/analog converter). Control line for switching to Output voltage. Designation: /WE (for /write enable). Control line for switching to Measure voltage. Designation: /RE (for /read enable). Address line for selecting an external output. Designation: WA (for write address). Address line for selecting an external input. Designation: RA (for read address)

8 3-8 M-5B-/U (Type 20) Connecting 5B Transducers The 5B transducers are mounted on an external mother board (panel). Panels of Types 5Bx02, 5B02 and 5BA32 can be connected by means of a 26-pole ribbon cable. Note that the following configurations are feasible for up to 64 addressable external analog inputs or outputs (Type 5B02 can also be used in place of Type 5Bx02): Address 0 to 5 5Bx02 5Bx02 5BA32 6 to 3 5Bx02 5Bx02 5BA32 32 to 47 5Bx02 5Bx02 48 to 63 5Bx02 5Bx02 5BA32 5BA32 If only mother boards of the 5BA32 type are used, then as much as eight panels can be connected, meaning that 256 analog inputs can be addressed with one M-5B-/U module. Please note that no output transducers can be operated on the 5BA32 panel, and not all of the input transducers either. The illustration below shows how 5B mother boards are connected to the MODU- LAR-4 system. All mother boards are connected in parallel, using just one 26-pole ribbon cable. M-5B-/U 26-pole ribbon cable 5B02, 5Bx02 or 5BA32

9 M-5B-/U (Type 20) Scope of Delivery 3-9 Typical configuration The following components are required for a complete system with up to 6 mutually separated inputs and outputs: one MODULAR-4 basic board with one free slot. one M-5B-/U module. one 26-pole ribbon cable. One mother board for transducer, Type 5Bx02, if necessary with 9" installation frame AC V power pack (can be screwed onto the 9" installation frame). 5B transducer. All that is needed for an expansion are further mother boards (if necessary with 9" installation frame AC363) and the matching transducers. Scope of Delivery M-5B-/U module 26-pole plug connector for ribbon cable Floppy disk with program libraries (Pascal and C)

10 3-0 M-5B-/U (Type 20) Configuration Plan Configuration and Installation The module has been configured ready for connection of Type 5B02 or Type 5Bx02 panels for MODULAR-4/Z80 and /Z280. For MODULAR-4/486, the least you must do is check jumper field B and configure it appropriately: All jumpers should be checked and set and documented as desired. All other settings should be made after the module has been installed, using the software. When you alter the defaults set in the factory, you must enter these alterations in the EEPROM (e.g. with the SNW program). These settings should additionally be documented. Configuration plan offset P gain P2 B 3 IC2 IC IC4 B2 IC2 IC3 5 IC5 25 IC7 IC6 IC0 26 J 2 3 B3

11 M-5B-/U (Type 20) Jumper Settings 3- Jumper Settings Three jumper fields (B, B2 and B3) must be set and/or checked. Jumper field Pins Function B B2 B3 x 3 x 5 x 3 Configuration for 8-bit or 6-bit bus Output voltage range Pin-2 of J to +5 volts or GND Configuration for 8-bit or 6-bit data bus (B) Jumper field 8-bit data bus (for MODULAR-4/Z80 and /Z280) B bit data bus (for MODULAR-4/486) Output voltage range of the module (B2) There are two versions of 5B transducers for analog outputs: one version requires an input voltage of 0 to 5 volts, the other version one of ±5 volts. We recommend you to use only one version within one system. The recommended version is that with a ±5-V input voltage range. Jumper field 0 to 5 volts ±5 volts 0 to 0 volts B Set in the factory If the module is to be used for purposes other than for controlling 5B converters, then a 0-V range can also be set. However, the ± 2-Volt supply for the module is obtained from the basic board (and thus normally from the PC). This for the 0 to 0 V range, the maximum voltage which can be linearly processed is limited to approx. 9.3 V. The recommended range is accordingly ±5 V or 0 to 5 V. It is not possible with this module to feed in supply voltages from outside.

12 3-2 M-5B-/U (Type 20) Jumper Settings Circuitry for plug connector B3, Pin 2 For the supply of external devices, the 5-V supply voltage of the module can be led out at Pin 2 of J. (Please note that this voltage can be loaded only to a limited extent!) Ground has been connected to Pin of J. For this purpose, -2 must be connected at jumper field B have been connected in the factory, and ground has then been connected to Pin 2 of J. The line has not been protected against shortcircuits! Jumper field Ground +5 volts B Set in the factory

13 M-5B-/U (Type 20) EEPROM Contents 3-3 EEPROM contents Factory settings in the EEPROM: WORD Binary Hex. Significance (Brief info) h Module type: M-5B-/U h Initialization cch Hardware components mounted h Jumper settings h Correction values, differential input AIN-0 - AIN- (AD) for ±5 V h Correction values, actual-value acquisition of AOUT-0 (DA) h Correction values, differential input AIN-0 - AIN- (AD) for 0 to 5 V h Reserved h Correction values, analog input AIN h Correction values, analog input AIN h Correction values, analog input AIN h Correction values, analog input AIN h Correction values, analog output AOUT-0 (DA) h Analog output voltage after reset h Init DOUT-0 to -5 (WA) and DOUT-20 to 25 (RA) h Init DOUT-0 (/WE) and DOUT- (/RE) and/or panels connected h Transducer on panel h Transducer on panel h Transducer on panel h Transducer on panel h Transducer on panel h Transducer on panel h Transducer on panel h Transducer on panel h Reserved h Reserved

14 3-4 M-5B-/U (Type 20) EEPROM Contents WORD-0: type and version of the module (must not be altered) WORD-0: identifier Module type: 20 = M-5B-/U Revision: = A, 2 = B, 3 = C, 4 = D 0 Reserved 0 0 Identifier WORD-: initialization This word can be used to set whether the module will be initialized after power-up and a hardware reset in accordance with the entries in the EEPROM (Bit-0 = ) or not (Bit-0 = 0) WORD-: initialization altered on: by: Reserved Init after hardware reset: 0=no, =yes

15 M-5B-/U (Type 20) EEPROM Contents 3-5 WORD-2: hardware components mounted WORD-2: hardware components altered on: by: 0 Multiplex panel connected : 0 = no = yes (e.g. 5B02, 5Bx02, 5BA32) 0 Reserved Single-ended inputs configurable: 0 = no = yes Differential inputs configurable: 0 = no = yes 0 0 Type of sample&hold amplifier: 00 = in the converter 0 = = 5320 Type of A/D converter: 00 = = = 774 = 674 Jumper field B: =fitted Jumper field B2: =fitted Jumper field B3: =fitted 0 Wire jumper B4: =fitted Reserved WORD-5 to -23 are used differently in dependence on this bit (see below).

16 3-6 M-5B-/U (Type 20) EEPROM Contents WORD-3: configuration B to B WORD-3: jumper configuration altered on: 0 B: 0=-2, = Reserved B2: =-2 0 B2: =2-3 0 B2: =3-4 0 B2: =4-5 B3: 0=-2, = Reserved by:

17 M-5B-/U (Type 20) EEPROM Contents 3-7 WORD-4 to WORD-2: correction values The eight lower bits (Low Byte) in each case contain the correction value for offset, the eight upper bits (High Byte) that for gain. You will find useful tips and information on how to calculate and use the correction values on Page 3-4. Word (7) Correction values for Differential input AIN-0 AIN- (AD), range ±5 V Actual-value acquisition AOUT-0 (DA) Differential input AIN-0 AIN- (AD), range 0 to 5 V (Reserved) Analog input AIN-0 Analog input AIN- Analog input AIN-2 Analog input AIN-3 Analog output AOUT-0 (DA) WORD-4 to WORD-2: correction values W-4 altered on: by: W-5 altered on: by: W-6 altered on: by: W-7 altered on: by: W-8 altered on: by: W-9 altered on: by: W-0 altered on: by: W- altered on: by: W-2 altered on: by: for offset (+27 to -28) for gain (+27 to -28)

18 3-8 M-5B-/U (Type 20) EEPROM Contents WORD-3: analog output voltage after reset The 2-bit value is right-justified, the four upper bits are without significance. x000h corresponds to 0 volts (with ranges 0 to 5 volts and 0 to 0 volts) or to -5 volts (with the ±5-V range), xfffh corresponds to full-scale deflection WORD-3: initialization of AOUT-0 altered on: bit value Always set to =0 by: WORD-4: status of digital outputs DOUT-0 to -5 (WA) and DOUT-20 to -25 (RA) after reset The six lower bits of the Low Byte determine the status of digital outputs DOUT-0 to -5 (address line WA), the six lower bits of the High Byte determine the status of digital outputs DOUT-20 to -25 (address line RA) WORD-4: init DOUT-0 to -25 altered on: DOUT-0 to -5 (WA) 0 0 Reserved DOUT-20 to -25 (RA) 0 0 Reserved by:

19 M-5B-/U (Type 20) EEPROM Contents 3-9 WORD-5: panels connected / initialization of DOUT-0 and DOUT- If Bit-0 of WORD-2 is =, this means that panels with 5B transducers have been connected. In this case, you must enter in WORD-5 which panels have been connected. Entry for panel type Free 5B02 5Bx02 5BA WORD-5: panels connected altered on: 0 0 Panel 0 (Address 0 to 5) 0 0 Panel (Address 6 to 3) 0 0 Panel 2 (Address 32 to 47) 0 0 Panel 3 (Address 48 to 63) Reserved by: If Bit-0 of WORD-2 is = 0, then the states desired after reset for digital outputs DOUT-0 and DOUT- must be entered here WORD-5: init DOUT-0 and DOUT- altered on: DOUT-0 DOUT Reserved by:

20 3-20 M-5B-/U (Type 20) EEPROM Contents WORD-6 to WORD-23: transducers If Bit-0 of WORD-2 is = 0, this means that no panels have been connected. In this case, WORD-6 to WORD-23 are without significance. If Bit-0 of WORD-2 is =, then at least one panel has been connected (see WORD-5). A transducer is in each case specified by its address. Two bits for each transducer in WORD-6 to WORD- 23 will then specify the transducer type used. The format is the same for all addresses. Entry for transducer type Voltage range Input transducer, supplies to M-5B-/U Input transducer, supplies to M-5B-/U Output transducer, requires from M-5B-/U Output transducer, requires from M-5B-/U ±5 V 0 to 5 V ±5 V 0 to 5 V WORD-6: panel 0 (Addresses 0 to 7) altered on: 0 0 Type for Address Type for Address 0 0 Type for Address Type for Address Type for Address Type for Address Type for Address Type for Address 7 by:

21 M-5B-/U (Type 20) EEPROM Contents WORD-7: panel 0 (Addresses 8 to 5) altered on: 0 0 Type for Address Type for Address Type for Address Type for Address 0 0 Type for Address Type for Address Type for Address Type for Address 5 by: WORD-8: Panel (Addresses 6 to 23) altered on: 0 0 Type for Address Type for Address Type for Address Type for Address Type for Address Type for Address Type for Address Type for Address 23 by:

22 3-22 M-5B-/U (Type 20) EEPROM Contents WORD-9: panel (Addresses 24 to 3) altered on: 0 0 Type for Address Type for Address Type for Address Type for Address Type for Address Type for Address Type for Address Type for Address 3 by: WORD-20: panel 2 (Addresses 32 to 39) altered on: 0 0 Type for Address Type for Address Type for Address Type for Address Type for Address Type for Address Type for Address Type for Address 39 by:

23 M-5B-/U (Type 20) EEPROM Contents WORD-2: panel 2 (Addresses 40 to 47) altered on: by: 0 0 Type for Address Type for Address Type for Address Type for Address Type for Address Type for Address Type for Address Type for Address WORD-22: panel 3 (Addresses 48 to 55) altered on: 0 0 Type for Address Type for Address Type for Address Type for Address Type for Address Type for Address Type for Address Type for Address 55 by:

24 3-24 M-5B-/U (Type 20) EEPROM Contents WORD-23: panel 3 (Addresses 56 to 63) altered on: 0 0 Type for Address Type for Address Type for Address Type for Address Type for Address Type for Address Type for Address Type for Address 63 by:

25 M-5B-/U (Type 20) Plug Connector Assignments 3-25 Plug connector assignments The module is connected to the outside world via a 26-pole (2 x 3) plug connector and an appropriate ribbon cable. It must be noted in this context that when the module is connected to a 5B transducer mother board of the Type 5B02, 5Bx02 or 5BA32 connection of the M-5B-/U module belongs to connection 26 of the mother board: Pin of 5Bx02 (5BA32) Pin of M-5B-/U

26 3-26 M-5B-/U (Type 20) Plug Connector Assignments Pin Signal Significance GND GND/+5 V AIN-3 AIN-2 Reserved n. c. DOUT-0 DOUT- DOUT-5 DOUT-4 DOUT-3 DOUT-2 DOUT- DOUT-0 DOUT-25 DOUT-24 DOUT-23 DOUT-22 DOUT-2 DOUT-20 AGND AGND AIN- AOUT-0 AGND AIN-0 Switched to GND in the factory (Jumper B3, see Page 3-2) Analog input AIN-3 Analog input AIN-2 Do not connect anything! Digital output DOUT-0 (/WE) Digital output DOUT- (/RE) Digital output DOUT-5 (WA, Bit-5) Digital output DOUT-4 (WA, Bit-4) Digital output DOUT-3 (WA, Bit-3) Digital output DOUT-2 (WA, Bit-2) Digital output DOUT- (WA, Bit-) Digital output DOUT-0 (WA, Bit-0) Digital output DOUT-25 (RA, Bit-5) Digital output DOUT-24 (RA, Bit-4) Digital output DOUT-23 (RA, Bit-3) Digital output DOUT-22 (RA, Bit-2) Digital output DOUT-2 (RA, Bit-) Digital output DOUT-20 (RA, Bit-0) Analog GND Analog GND Analog input AIN- Analog output AOUT-0 (DA) Analog GND Analog input AIN-0

27 M-5B-/U (Type 20) High-Level-Language Library 3-27 High-level-language library For information on how the library is integrated, please consult the High-level language library' section in the introduction. The library s name (libname) is M020_LIB, and you will find it in the (pathname) MODULE directory. Before all other routines, the m020_bib_startup procedure must be called once. m020_bib_startup Pascal C Function PROCEDURE m020_bib_startup (micro_slot: byte); void EXPORT m020_bib_startup (byte micro_slot); Initialize module library This procedure initializes the module library M020_LIB and the SPB M-5B-/U module on the slot indicated. Among other things, the initialization data from the EEPROMs of all M-5B-/U modules will be transferred, which are located on the basic board. m020_set_conf_eeprom Pascal C Function Set EEPROM configuration PROCEDURE m020_set_conf_eeprom (micro_slot: byte); void EXPORT m020_set_conf_eeprom (byte micro_slot); This procedure sets the configuration in the way specified in the module s EEPROM. Correction values and default settings after a board reset will be adopted. If any values had already been specified with the m020_set_correct_values procedure, these will be overwritten.

28 3-28 M-5B-/U (Type 20) High-Level-Language Library m020_set_correct_values Pascal C Function Set correction values PROCEDURE m020_set_correct_values (micro_slot: byte; mp: byte; cgain, coffset: integer); void EXPORT m020_set_correct_values (byte micro_slot, byte mp, short cgain, short coffset); This procedure sets the correction values offset (coffset) and gain (cgain) for the measuring point mp specified. You will find the format of the correction values on Page 3-4. The correction values are only temporarily stored in the library, and not stored in the EEPROM. At program restart, they will have been erased, i.e. set to = 0. Parameters mp: specifies the measuring point for which the correction values are to be set. Mp Function Range 0 Differential AIN-0 - AIN- (AD) ±5 V Actual status AOUT-0 (DA) ±5 V 2 Differential AIN-0 - AIN- (AD) 0 to 5 V 4 Analog input AIN-0 ±5 V 5 Analog input AIN- ±5 V 6 Analog input AIN-2 ±5 V 7 Analog input AIN-3 ±5 V 8 Analog output AOUT-0 (DA) cgain: coffset: correction factor for gain errors. correction factor for offset errors.

29 M-5B-/U (Type 20) High-Level-Language Library 3-29 m020_get_correct_values Read correction values Pascal C Function PROCEDURE m020_get_correct_values (micro_slot: byte; mp: byte; var cgain_var, coffset_var: integer); void EXPORT m020_get_correct_values (byte micro_slot, byte mp, short *cgain_var, short *coffset_var); After this procedure has been called, the variables coffset_var and cgain_var contain the values set for the measuring point mp stated in the library. Parameters mp: see Page cgain_var: contains (after this procedure has been called) the correction factor for gain errors of the channel stated. coffset_var: contains (after this procedure has been called) the correction factor for offset errors of the channel stated.

30 3-30 M-5B-/U (Type 20) High-Level-Language Library m020_direct_correct Pascal C Function Correct voltage value PROCEDURE m020_direct_correct (micro_slot: byte; mp: byte; var data_var: integer); void EXPORT m020_direct_correct (byte micro_slot, byte mp, short *data_var); When this procedure is called, a distinction must be made between the following two cases: Case : you want to correct and limit a voltage value which is to be outputted on the analog output: The voltage value transferred in the data_var variable is corrected and limited in accordance with the correction values set for measuring point 8. After the procedure has been called, the data_var variable contains the corrected value which has where appropriate been limited to ± full-scale deflection. Case 2: you want a voltage value which has been read by an analog input to be corrected: The voltage value transferred in the data_var variable is corrected in accordance with the correction values set for measuring point mp (possible values are 0 to 7). After the procedure has been called, the data_var variable contains the corrected value. Parameters mp: see Page data_var: this variable contains the value for correction before this procedure is called, and the corrected value after it has been called.

31 M-5B-/U (Type 20) High-Level-Language Library 3-3 m020_direct_in Pascal C Function Measure an input s voltage PROCEDURE m020_direct_in (micro_slot: byte; mp: byte; flag: byte; var data_var: integer); void EXPORT m020_direct_in (byte micro_slot, byte mp, byte flag, short *data_var); This procedure reads the analog input specified by mp, if necessary with correction. Parameters mp: see Page flag: data_var: specifies whether the correction values for the input are to be taken into account (=) or not (=0). after this procedure has been called, this variable contains the value determined for the analog input. m020_direct_out Pascal C Function Output voltage at analog output PROCEDURE m020_direct_out (micro_slot: byte; flag: byte; data: integer); void EXPORT m020_direct_out (byte micro_slot, byte flag, short data); This procedure outputs the value of the data parameter on the module s analog output AOUT-0. The format must correspond to the configuration of the module (EEPROM entry in Word-3, Bit-5 to Bit-7). The outputted value is corrected and where necessary limited when the flag parameter is set to = or if prior to calling this procedure, the m020_direct_correct procedure is called. Parameters flag: specifies whether the correction values for the output are to be taken into account (=) or not (=0). data: specifies the value to be set.

32 3-32 M-5B-/U (Type 20) High-Level-Language Library m020_get_setvalue Pascal C Function Read back setpoint value of analog output PROCEDURE m020_get_setvalue (micro_slot: byte; var data_var: integer); void EXPORT m020_get_setvalue (byte micro_slot, short *data_var); This function reads back the last value set with the library of analog output AOUT-0. Please note: the actual value can be read back by measuring the measuring point! Parameter data_var: contains (after this procedure has been called) the setpoint value for analog output AOUT-0. m020_set_wa Pascal C Function PROCEDURE m020_set_wa (micro_slot: byte; wa: byte); void EXPORT m020_set_wa (byte micro_slot, byte wa); Set WA address line This procedure sets the WA (write address) address line to the value of parameter wa (Bit-0 corresponds to WA-0, Bit-5 corresponds to WA-5, Bit-6 and Bit-7 are without significance and are ignored). Parameter wa: specifies the WA address to be set. m020_set_ra Pascal C Function PROCEDURE m020_set_ra (micro_slot: byte; ra: byte); void EXPORT m020_set_ra (byte micro_slot, byte ra); Set RA address line This procedure sets the RA (read address) address line to the value of parameter ra (Bit-0 corresponds to RA-0, Bit-5 corresponds to RA-5, Bit-6 and Bit-7 are without significance and are ignored). Parameter ra: specifies the RA address to be set.

33 M-5B-/U (Type 20) High-Level-Language Library 3-33 m020_set_bit Pascal C Function PROCEDURE m020_set_bit (micro_slot: byte; dout: byte; data: byte); void EXPORT m020_set_bit (byte micro_slot, byte dout, byte data); Set a digital output This procedure sets the digital output specified by dout to the value stated in the data parameter. Parameters dout: specifies the digital output to be set: dout Output 0 DOUT-0 (WA, Bit-0) DOUT- (WA, Bit-) 2 DOUT-2 (WA, Bit-2) 3 DOUT-3 (WA, Bit-3) 4 DOUT-4 (WA, Bit-4) 5 DOUT-5 (WA, Bit-5) 6 DOUT-20 (RA, Bit-0) 7 DOUT-2 (RA, Bit-) 8 DOUT-22 (RA, Bit-2) 9 DOUT-23 (RA, Bit-3) 0 DOUT-24 (RA, Bit-4) DOUT-25 (RA, Bit-5) 2 DOUT-0 (/WE) 3 DOUT- (/RE) data: specifies the value to be set. Permissible values are 0 (set output to LOW) or (set output to HIGH).

34 3-34 M-5B-/U (Type 20) High-Level-Language Library m020_get_set_bit Pascal C Function Read setpoint status of all digital outputs PROCEDURE m020_get_set_bit (micro_slot: byte; var wa_var, ra_var, we_re_var: byte); void EXPORT m020_get_set_bit (byte micro_slot, byte *wa_var, byte *ra_var, byte *we_re_var); After this procedure has been called, the variables wa_var, ra_var and we_re_var contain the setpoint status of the digital outputs. Parameters wa_var: after being called contains the setpoint status of address line WA (DOUT-0 to DOUT-5). ra_var: after being called contains the setpoint status of address line RA (DOUT-20 to DOUT-25). we_re_var: after being called contains the setpoint status of control line /WE (DOUT-0) in Bit 0, and the setpoint status of control line /RE (DOUT-) in Bit.

35 M-5B-/U (Type 20) High-Level-Language Library 3-35 m020_correct Pascal C Function Correct transducer voltage value PROCEDURE m020_correct (microslot: byte; adr: byte; var data_var: integer); void EXPORT m020_correct (byte microslot, byte adr, short *data_var); When this procedure is called, a distinction must be made between the following two cases: Case : you want to correct and limit a voltage value which is to be outputted on a transducer: For the output specified by adr, the voltage value transferred in the data_var variable is corrected and limited in accordance with the correction value set for DA (AOUT-0). After the procedure has been called, the data_var variable contains the corrected value which has where appropriate been limited. Case 2: you want a voltage value which has been read by a transducer to be corrected: For the input specified by adr, the voltage value transferred in the data_var variable is corrected in accordance with the correction values set for inputs IN-0 to IN-3 (AIN-0 to AIN-3). After the procedure has been called, the data_var variable contains the corrected value. Parameters adr: specifies the address of the input or output. data_var: this variable contains the value for correction before this procedure is called, and the corrected value after it has been called.

36 3-36 M-5B-/U (Type 20) High-Level-Language Library m020_in Pascal C Function Measure voltage of transducer PROCEDURE m020_in (micro_slot: byte; adr: byte; flag: byte; settle_time: word; var data_var: integer); void EXPORT m020_in (byte micro_slot, byte adr, byte flag, ushort settle_time, short *data_var); This procedure measures the voltage of a 5B transducer. After this has been called, the result can be found in the data_var variable. The format corresponds to the this input s entry in the EEPROM. Note that a voltage range of ±5 volts corresponds to a value range of to 2047, and a voltage range of 0 to 5 volts to a value range of 0 to The voltage range relates to the output of a transducer, and is thus independent of the input range of the transducer concerned. Parameters adr: address of the input on the 5Bx02 mother board (0 to 63), on which the 5B transducer is located, or of the input on the 5BA32 mother board. Panel 5Bx02 5BA Address 0 to 5 Address 6 to 3 Address 32 to 47 Address 48 to 63 Address 0 to 3 Address 32 to flag: if you want the voltage to be corrected, then either Parameter flag must be set to =, or procedure m020_correct, which automatically takes into account the correction values defined for the input specified, must additionally be called after this procedure has been called. If Parameter flag is =0, no correction will be performed within the procedure.

37 M-5B-/U (Type 20) High-Level-Language Library 3-37 settle_time: the settle time specifies the time you want the system to wait until the transducer has settled. This settle time depends on the type of transducer involved (e.g. a bandwidth of 4 Hz corresponds to a settle time of 750 ms), and with the 5BA32 mother board is fully incorporated in the wait time. When the 5Bx02 mother board is used, you can set the settle_time parameter to 0 so as to ensure that the monoflop on the M-5B-/U module determines the wait time. For a read access operation, the monoflop wait time is 20 µs, and for a write access operation 50 µs. data_var: after the call, contains the result of the measurement. m020_out Pascal C Function Output voltage to transducer PROCEDURE m020_out (micro_slot: byte; adr: byte; settle_time: word; flag: byte; data: integer); void EXPORT m020_out (byte micro_slot, byte adr, ushort settle_time, byte flag, short data); This procedure outputs the value of the data parameter on a 5B transducer (analog output). The format corresponds to the entry made for this output in the EEPROM. Note that a voltage range of ±5 volts corresponds to a value range of to 2047, and a voltage range of 0 to 5 volts to a value range of 0 to The voltage range relates to the input of a transducer and is thus independent of the output range of the transducer concerned. Parameters adr: address of the output on the 5Bx02 mother board (0 to 63), on which the 5B transducer is located. Panel Bx02 Address 0 to 5 Address 6 to 3 Address 32 to 47 Address 48 to 63

38 3-38 M-5B-/U (Type 20) High-Level-Language Library settle_time: the time you want the system to wait until the transducer has settled. This settle time is, for example, 7.5 ms for a bandwidth of 400 Hz and must be allowed to elapse before the next value (smaller or larger than the previous one) is outputted on this transducer. On the other hand, the 5B transducers require a refresh, i.e. this routine must be called up again with the old outputted value at intervals of 0 ms max., if the output voltage is to be kept at a constant level. By setting the settle_time parameter to 0, you can make sure that the monoflop on the M-5B-/U module determines the wait time. flag: data: the outputted value is corrected prior to outputting, if the flag parameter is =. If the flag parameter is =0, then the outputted value can be checked and corrected prior to calling this procedure by calling the m020_correct procedure. value to be outputted.

39 M-5B-/U (Type 20) Local I/O Addresses 3-39 Programming with I/O access operations Local I/O addresses Address Access Function MBA+02h W8 Write D/A converter Low Byte (8 bits) MBA+0h W8 Write D/A converter High Byte (only the four lower bits are valid, the four upper bits are not evaluated) MBA+06h W8x Trigger W-monoflop and set analog output (= adoption of value previously set) MBA+04h W8 Set WA in accordance with Bit 0 to Bit 5 (the two upper bits are not evaluated) MBA+05h W8x Set output /WE = 0 MBA+07h R8 Read status of W-monoflop at Bit 0 (=busy) MBA+08h W8x Set output /WE = MBA+0h W8 Set RA (in accordance with Bit 0 to Bit 5) and select measuring point on module (in accordance with Bit 6 and Bit 7, see Page 3-40) MBA+h W8x Set output /RE = 0 and trigger R-monoflop MBA+6h W8x Set output /RE = MBA+3h R8 Read status of R-monoflop at Bit 0 ( = busy) MBA+4h W8x Start A/D conversion (2-bit) MBA+2h R8 Read status of A/D converter at Bit-0 ( = busy) MBA+ah 2 R6 Read result of A/D conversion (left-justified, Bit 5 = MSB, Bit 4 = LSB, Bits 3 to 0 are invalid) 2 Value range for D/A converter: 0 to 4095 Value range for A/D converter: 0 to 4095

40 3-40 M-5B-/U (Type 20) Hints on Programming Hints on Programming The module contains a multiplexer with 8 inputs which are connected to measuring points on the module. The measuring points are selected using Bit 7 and Bit 6 when an access operation is performed on address MBA + 0h and /RE. Meas. point Range Signal /RE Bit 7 Bit 6 ±5 V ±5 V 0 to 5 V ±5 V ±5 V ±5 V ±5 V ±5 V Differential (AIN-0 - AIN-) Actual value AOUT-0 (DA) Differential (AIN-0 - AIN-) Offset (GND) AIN-0 AIN- AIN-2 AIN To set the output voltage of a 5B transducer, i.e. of an analog output, you must perform the following steps (due to the refresh routine required for 5B transducers outputs, this must be repeated at defined intervals): Step Function Access Address Data Set /RE= W8x MBA+6h (if this has not yet been done 2 Set /WE= (if this has not yet been done) 3 Output voltage through DA converter W8x MBA+8 3a Set Low Byte W8 MBA+2 Bit 0-7 3b Set High Byte W8 MBA+ Bit 8-3c Adopt the value set W8x MBA+6 4 Set WA write address (valid values are 0 to 63) W8 MBA+4 Bit 0-5

41 M-5B-/U (Type 20) Hints on Programming 3-4 Step Function Access Address Data 5 Wait till settle time has elapsed (see data sheet for 5B transducer) 6 Set /WE=0 W8x MBA+5 7 Wait till settle time has elapsed (see data sheet for 5B transducer) 8 Set /WE= W8x MBA+8 To measure the voltage of a 5B transducer, i.e. of an analog input, you must perform the following steps: Step Function Access Address Data Set /WE= (if this has not yet been done) 2 Set /RE= (if this has not yet been done) W8x W8x MBA+8 MBA+6h 3 Set RA read address W8 MBA+0h Bit 0-7 (Bits 0 to 5, valid values are 0 to 63) and simultaneously selected the measuring point you want (0 or 2) on module with Bits 6 and 7 (see Page 3-40). 4 Set /RE=0 W8x MBA+h 5 Wait till settle time has elapsed (see data sheet for 5B transducer) 6 Start A/D conversion W8x MBA+4h 7 Wait till conversion complete (=busy) R8 MBA+2h Bit 0 8 Fetch measured result R6 MBA+ah Bit Set /RE= W8x MBA+6h

42 3-42 M-5B-/U (Type 20) Index Index for M-5B-/U Address line RA Address line WA Analog inputs Analog output Block diagram Calibration Configuration plan Connecting 5B transducers Correction factors Digital outputs EEPROM , 3-3 Jumpers...3- Locale I/O addresses Plug connector assignments Programming acecssing I/O-addresses Library Scope of delivery Technical data...3-6