INSTRUCTION MANUAL PSU-RS2

Transcription

1 INSTRUCTION MANUAL PSU-RS2 Issue 7A 14 Dec. 05 Proton Instruments Pvt. Ltd. India

2 Table of contents Introduction...4 DeviceNet and Ethernet IP...5 Installation Mechanical...6 Connection...7 Installation - Software...10 USB Driver...10 Installation - Electrical...12 Earth connections & Cable Screens...12 CANBUS Connections between Modules...12 PSU-RS2 configuration Procedure...14 Serial Communications for Diameter Gauge...18 CANBUS...18 RS Parameter Lists...23 Modbus Communications for Diameter Gauge...28 PSU-RS2 RS232 Port...28 ModBus Protocol...28 Serial Communication Data Standard...30 Introduction...30 Proton Standard RS232 Page Access Mode...30 Proton Standard RS232 Parameter Access Protocol...31 PROFIBUS Master to Gauge and RS232 Input List...33 PROFIBUS Gauge to Master and RS232 Output List...34 Specifications

3 Introduction Proton PSU-RS2 is a compact unit which provide adapter function between connection between Proton products and other device. It provides 24VDC power to gauge head via CANBUS; but as default configuration, it will not provide power to DeviceNet network. PSU-RS2 itself can be powered via universal AC power or +24VDC power. The connection to Proton products side is CAN BUS. The connections to user side are as below: USB RS232 RS485 (reserved) DeviceNet (Optional) Industrial IP (Optional) 4

4 DeviceNet and Ethernet IP DeviceNet: eds file is provided in CDROM with the unit. IO package size: 32 bytes. EthernetIP: eds file is provided in CDROM with the unit. IO package size: 32 bytes. Assembly Instance in = 100. Assembly Instance out = 150 Refer to PROFIBUS Master to gauge output list on page 33 for the data that gauge sends to your PLC. Refer to PROFIBUS Gauge to Master input list on page 34 for the data your PLC sends to gauge. DeviceNet and Ethernet IP IO package format (from Byte 0 to Byte 31): Word MSB LSB DW[0] Byte 0 Byte 1 DW[1] Byte 2 Byte 3 DW[2] Byte 4 Byte 5 DW[3] Byte 6 Byte 7 DW[4] Byte 8 Byte 9 DW[5] Byte 10 Byte 11 DW[6] Byte 12 Byte 13 DW[7] Byte 14 Byte 15 DW[8] Byte 16 Byte 17 DW[9] Byte 18 Byte 19 DW[10] Byte 20 Byte 21 DW[11] Byte 22 Byte 23 DW[12] Byte 24 Byte 25 DW[13] Byte 26 Byte 27 DW[14] Byte 28 Byte 29 DW[15] Byte 30 Byte 31 DW[ ]=2 Bytes=16 bits; For DW [ ] detail description please refer to Page 33 and 34. 5

5 Installation Installation Mechanical 6

6 Connection RS485 Connection DIP Switch DIP Setting n 0ff 0ff 0ff Parameter Setting Mode All other state Normal Mode USB Connection Description 7

7 RS232 Connection Ethernet Connection The Ethernet connection on this unit is DTE, not DCE. So when connect to a PC Ethernet card directly, crossover cable should be used; when connect to network via DCE device, straight forward cable should be used. There are the pin number designations for standards 568A/B: T-568B Pin Pair Descrtipion 1 2 TxData TxData RecvData Unused 5 1 Unused 6 3 RecvData Unused 8 4 Unused T-568A Pin Pair Description 1 3 RecvData RecvData TxData Unused 5 1 Unused 6 2 TxData Unused 8 4 Unused Note: Odd pin numbers are always the striped wires. 8

8 DC Power Input Connection CAN bus Connection DeviceNet Connection Pin 4: CANH Pin 1: Earth Pin 3: 0V Pin 5: CANL Pin 2: 24V 9

9 Installation - Software USB Driver System Requirements IBM PC 486DX4-100 MHz CPU or higher or compatible system Available USB port CD-ROM drive Windows 2000,Windows 98,Windows XP Driver Installation (WIN2000) Follow the steps below to install Window 2000 driver of USB-Serial cable: 1. Power on your computer and make sure that the USB port is enabled and working properly. 2. Plug in the USB-Serial cable into the USB port and run the Found New Hardware Wizard to assist you in setting up the new device. Click Next to continue. 3. Insert the USB-Serial cable software driver into the CD-ROM drive and click next to continue. For Windows 98, click Search for a suitable driver for my device (recommend) and click to search driver from the CD-ROM drive \Proton\USB Driver for PSU-RS2. 10

10 4. Windows will detect the driver and Click Next to continue installation. 5. Click Finish to continue and let Windows copy the needed files to your hard disk. 6. You can to check the Device Manager and see the Prolific USB to Serial Comm Port) 11

11 Installation - Electrical Earth connections & Cable Screens Any unit with a mains supply input must have a separate earth wire of at least 6mm 2 attached, this is in addition to the earth wire within the mains lead, do not rely on the mounting bolts to provide an earth path. Use screened cable for all signal connections. Ensure that the cable screens are properly clamped in the glands on the PSU-RS2 units. Ensure that screens of cables connecting to the customer s equipment are clamped to earth at their destination. CANBUS Connections between Modules Cable types A cable with a characteristic impedance of 120 ohms is required when rewireable connectors are used and it is advisable to use DEVICENET standard cable to achieve this, also the cable overall diameter must fit the connector sealing gland. Where the cable length is very short [less than three metres], the cable impedance becomes less important and almost any screened cable can be used. Using pre-wired TURCK connectors [ is generally the best but the most expensive solution. Termination resistors The CANBUS must have termination resistors at each end of the bus, the configuration diagrams show that the gauge are always at the end of the bus therefore these units are supplied with termination resistors connected internally. The PSU-RS2 forms a node on the network when used with the PLED1 therefore the termination resistor is not connected but, if the PLED1 is not used, the termination on the PSU-RS2 is connected by linking the terminal marked 120R to CANH through the dip switch. Isolation The bus driver, 24V supply and the shield pin are isolated from earth at the gauge head but referenced to earth at the PSU-RS2 modules, the cable screen must be connected to the EMC gland on these modules. 12

12 Cable CANBUS/DeviceNet connection to PSU-RS2 The PSU-RS2 has one CANBUS port and one optional DeviceNet port, CANBUS is for connection to gauge head and the other is to DeviceNet. Pre wired female mating connector for gauge to free cable end: Pin designations: Pin 1 Bare = Shield Pin 2 Red = +24V Pin 3 Black = 0V Pin 4 White = CANH Pin 5 Blue = CANL Standard cable lengths = 2, 3, 4, 5, 6, 8, 10, 15, 20, 25, 30, 35, 40, 50 metres. Rewireable female mating connector for gauge Pin designations: Pin 1 = Shield Pin 2 = +24V Pin 3 = 0V Pin 4 = CANH Pin 5 = CANL 13

13 PSU-RS2 configuration Procedure Enter parameter setting mode: Power off PSU-RS2 and connect it to computer via RS232 cable. Set Hyper terminal as (ANSIW, 9600, 8, N, 1, N) Set DIP switch as: 1=ON; 2=OFF; 3=OFF; 4=OFF; Power on the unit, it will go to parameter setting main menu as below. Or In normal mode, enter command config to enter setting mode; Press ESC key to exit current menu and return to upper level menu. Parameter will be stored automatically after modification; new parameters only take effect after restart. Configuration menu Levels: Level 1 (Main Menu) =========================== 1 - PSU-RS2 Function selection 2 - RS232 configuration 3 - ModBus setting 4 - DeviceNet setting 5 - EthernetIP setting 6 - Proton CAN setting Reset to default =========================== Please enter option: Level 1-1 Current Setting: Diameter Gauge 1 Diameter Gauge 2 Length Gauge Please enter option for current Gauge is connected: Level Current Setting: Diameter Gauge 1 - RS232 output mode 2 - Miscellaneous for UART Please enter option: Level Current Setting: Proton HyperTerminal 1 - Proton HyperTerminal 2 - Beta Protocol Please enter option for RS232 output: 14

14 Level Current Setting: EthernetIP 1 - ModBus 2 - DeviceNet 3 - EthernetIP 4 - None Please enter option for UART: Level Current Setting: Length Gauge 1 - UART output mode Please enter option: Level 1-2 Current Setting: N N N N N N N N N N N-1 Please enter option: Level 1-3 Current Setting: Modbus HyperTerminal= N Please enter option: Level 1-4 DeviceNet Setting Current Setting: DeviceNet ID=15 Current Setting: DeviceNet Baudrate=125k 1 - ID 2 - Baudrate 15

15 Please enter option: Level DeviceNet Setting Current Setting: ID =15 Current Setting: Baudrate=125k 1 - ID 2 - Baudrate Please enter option: 1 ID [0...63]: Level DeviceNet Setting Current Setting: Baudrate=125k 1-125k 2-250k 3-500k Please enter option: Level 1-5 EthernetIP Setting Current Setting: IP = Current Setting: SubMask= Current Setting: GateWay= : IP 2: SubMask 3: GateWay Please enter option: Level EthernetIP Setting Current Setting: IP = Current Setting: SubMask= Current Setting: GateWay= : IP 2: SubMask 3: GateWay Please enter option: 1 IP[ ]: Level

16 EthernetIP Setting Current Setting: IP = Current Setting: SubMask= Current Setting: GateWay= : IP 2: SubMask 3: GateWay Please enter option: 2 SubMask[ ]: Level EthernetIP Setting Current Setting: IP = Current Setting: SubMask= Current Setting: GateWay= : IP 2: SubMask 3: GateWay Please enter option: 3 GateWay[ ]: Level 1-6 Proton CAN Setting Current Setting:Baudrate=1000k 1: 250k 2: 500k 3: 750k 4: 1000k Please enter option: Level 1-7 <Default Setting: Connect to Diameter Gauge. RS232 setting=ansiw, N-1, Proton HyperTerminal protocol. UART output mode: None. DeviceNet ID = 15. DeviceNet CAN baud rate = 125k. EthernetIP_ip = EthernetIP_submask= EthernetIP_gateway=

17 Serial Communications for Diameter Gauge CANBUS This is used to communicate between the gauge heads and the other Proton modules. The gauge automatically recognises that it is connected to a module and configures the bus appropriately. It is the only way that the modules and gauge head can be interconnected. The customer cannot use the CANBUS for any other purpose! It is not intended for use with an external CAN network and cannot be used to connect several gauge heads together. Reading FFT Data There are 1024 useful FFT results, these are the amplitudes of the frequency components starting from FFT sample rate / 4096 and ending at FFT sample rate 1024 / 4096, the frequency step is FFT sample rate / The gauge output buffer holds 8 results, the PROFIBUS master must send the Address index of FFT results to the gauge which defines which group of 8 from the 1024 results, is placed into the output buffer. These are updated after the PROFIBUS transmission therefore the new values cannot be read until the next PROFIBUS transmission. The FFT data is read as follows: Set the FFT Run / Hold state to Run. Set the FFT sample rate, this will clear the input buffer and start a new data collection period. A new set of results only becomes available when the Time remaining to update FFT result reaches zero therefore this must be tested before reading the results, the FFT results available bit only means that old results are available. Set Address index of FFT results to 0. On the next transmission increment Address index of FFT results by 8 and read the first 8 results together with the True address index of FFT results [the index will still be the previous value [0] since it is not updated until the transmission is finished. Increment the Address index of FFT results by 8 and read again, repeat this process until all the results are read. If the FFT Run / Hold state is left in the Run state then data will remain stable until a new set of data is collected [this time is 4096s / sampling rate], if the data cannot be read in this time then set the state to Hold until reading is finished. RS232 This is available on the PSU-RS2-AR and PSU-RS2 module and allows for data transmission to standard PCs and any PLC with an RS232 interface. It can work with two protocols as follows: Proton Standard RS232 Page access mode Proton Standard RS232 Parameter Access Protocol 18

18 Beta Standard RS232 Parameter Access Protocol The data format is as follows: No parity No flow control Data bits = 7 Stop bits = 2 Parameter Mode This shows the access codes for individual parameters or blocks of consecutive parameters, these are normally used in a production line environment where the gauge is connected to a PLC or similar device. The parameters are sub-divided into Input and Output parameters which mimic the PROFIBUS Master to Gauge and Gauge to Master pages. Page Mode This is used typically with a Hyper Terminal PC program where each code generates a page of data that is normally used for demonstration purposes. The data can be accessed by typing the Numerical or Alphabetical code followed by the enter key, it is then possible to change presets etc on the page. 19

19 RS232 Input Protocol Request value once for one or a range of Input parameters Note that the parameter value has the appropriate number of digits and includes the sign, as needed but not the decimal point [0.5mm = 500]. Request format 1:? Parameter number Request format 2:? First parameter number Space Number of parameters Reply format 1: Parameter value Reply format 2: First output parameter value Second output parameter value Third output parameter and so on, until the end of the range. RS232 Input Protocol Write a value to single Input parameter. Note that no decimal points are sent. Write format: & Input Parameter number Space Value without decimal point [0.5mm = 500] 20

20 RS232 Output Protocol Request continuously repeating values for one or a range of Output parameters Notes: The repartition rate is approximately 10 per second for a single parameter at a baud rate of at least 1200; if several parameters are sent then the baud rate must be increased otherwise the repartition rate falls. The parameter value has the appropriate number of digits and includes the sign, as needed but not the decimal point [0.5mm = 500]. Request format 1: # Parameter number Request format 2: # First parameter number Space Number of parameters Reply format 1: Parameter value Reply format 2: First output parameter value Second output parameter value Third output parameter and so on, until the end of the range. RS232 Output Protocol Request value once for one or a range of Output parameters Notes: The request and reply format is identical to the # format except that # is replaced by ~. The maximum request rate is 37.5Hz assuming a baud rate of at least 9600 is used. 21

21 RS232 Output Protocol Request a continuously repeating XY average diameter Note that the repartition rate is once per second and includes a decimal point but no spaces. Request format: con1sec Reply format: Two digits Decimal point Three digits RS232 Page Access Codes Numerical Code Alphabetical Code Comments 1 List Command list 2 Mode Diameter measurement mode 3 Stu Measuring status 4 Dia X & Y measured diameter values 5 Cont Continuously updated diameter values 6 Sta Statistics 7 Pre Preset overall & core diameter plus upper & lower limits 8 Fft FFT sampling rate 9 Cor Number of cores in helix mode 10 to 15 Not used 16 Time Gauge running time 17 Cntr Controller presets and operating mode 19 Language Modify the current language rs232 Modify baud rate for RS232 can Modify baud rate for CANBUS 22

22 Parameter Lists PROFIBUS Master to Gauge and RS232 Input Parameter List Note that the Word column defines the PROFIBUS word address or the RS232 parameter number. Word Parameter name Resolution Range 0 Parameter defined as bits, see below 1 Parameter defined as bits, see below 2 Reserved Must be 0 3 Reserved Must be 0 4 Outer diameter preset 1=1um 0~25000 / Core diameter preset 1=1um 0~25000 / Error positive limit 1=1um 0~999 7 Error negative limit 1=1um 0~999 8 Pitch For Helix & Corrugation 10=1mm 2~ Averaging for X & Y diameter 75 = 1sec 1~ Statistics data collection time 10s 10~1000s (Must be set in increments of 10.) 11 Line Speed 1=1m/min 0~3000m/min 12 Address index of FFT results 0, 8, Flaw Detection positive limit 1=1um 0~ Flaw Detection negative limit 1=1um 0~ Reserved Any value 16 Reserved Any value 17 Reserved Any value 18 Parameter defined as bits, see table Controller output range limit 0~50 20 Extruder response delay 0~999s 21 Controller start speed 9999m/min 22 Extruder to Gauge Head distance 0~9999m 23 I & P Gain: I Gain in the high byte 0~ Analogue output 1 full scale value 0~25000 / Analogue output 1 response 0=Fast, >0 =Slow 26 Analogue output 1 type 0 = X, >0 = XY 27 Analogue output 2 full scale value 0~25000 / Analogue output 2 response 0 = fast, >0 = slow 29 Analogue output 2 type 0 = Y, >0 = Error 23

23 PROFIBUS Master to Gauge and RS232 Input Parameter Bit Definition Parameter 0 Bit No. Bit definition Comments 0.0 Solid measurement mode 0.1 Glass measurement mode 0.2 Helix measurement mode 0.3 Corrugation straight measurement mode 0.4 Reserved Must be Reserved Must be Reserved Must be Reserved Any state 0.8 Helix core number = Helix core number = Helix core number = Helix core number = Helix core number = Helix core number = Helix core number > Reserved Any state 1 = select. Select one measurement mode only! 1 = select. Select one core number only! Parameter 1 Bit No. Bit definition Comments 1.0 Statistics Run / Hold state 0 = Run, 1 = Hold 1.1 SPC adaptive preset control 0 = OFF, 1 = ON 1.2 Reserved Any state 1.3 Reserved Any state 1.4 Voltage or pulse speed input for PINT1 or PIND1 0 = Pulse, 1 = Analogue 1.5 Line speed preset on the display 1.6 Line speed measured by PINT1 or PIND1 1.7 Line speed from PROFIBUS 1 = select. Select one source only! 1.8 FFT Run / Hold state 0 = Run, 1 = Hold 1.9 FFT sample rate = 1Hz 1 = select FFT sample rate = 3Hz Select one frequency 1.11 FFT sample rate = 10Hz only! 1.12 FFT sample rate = 30Hz 1.13 FFT sample rate = 100Hz 1.14 FFT sample rate = 300Hz 1.15 FFT sample rate = 600Hz Parameter 18 Bit No. Bit definition Comments 18.0 Controller HOLD 18.1 Controller ON 18.2 Controller RESET 1 = select. Select one state only! 18.3 Controller polarity 0 = Rev, 1 = Normal Reserved Any state 24

24 PROFIBUS Gauge to Master and RS232 Output Parameter List Word Parameter name Resolution Range 0 Parameter defined as bits, see below 1 Parameter defined as bits, see below 2 SSFD Flaw 1 = fault 3 SSFD Last flaw value 1 =1um +/- 0~ Controller Output 1=1% - -50~50 Solid mode diameter XY average value 1=1um 0~25000 / Glass mode diameter XY average value 1=1um 0~25000 / Helix mode envelop 1=1um 0~25000 / Straight corrugation mode maximum 1=1um 0~25000 / Diameter error value 1=1um +/- 0~25000 Solid mode diameter value for X-axis 1=1um 0~25000 / Glass mode diameter value for X-axis 1=1um 0~25000 / Helix mode envelop 1=1um 0~25000 / Straight corrugation mode minimum 1=1um 0~25000 / Solid mode diameter value for Y-axis 1=1um 0~25000 / Glass mode diameter value for Y-axis 1=1um 0~25000 / Helix mode pitch 1=1um 0~65535 Straight Corrugation mode pitch 1=1um 0~ Cable position % X-axis 1 =1% -100~ Cable position % Y-axis 1 =1% -100~ Line speed value in use 1 =1m/min 0~ Standard deviation 1=1um 0~ Maximum diameter 1=1um 0~25000 / Minimum diameter 1=1um 0~25000 / Chi 2 of diameter values in % compared 0~999% to normal distribution. 16 Time remaining to update SPC result 1 = 1s 9990~0 s 17 Time remaining to update FFT result 1 = 1s 4096~0 s 18 Cp 1 = 1% 0~999% 19 Cpk 1 = 1% 0~999% 20 to 23 Reserved for future use 0 will be sent 24 True address index of FFT results 0, 8, Amplitude of FFT result 0 + index 1= 0.1um 0~999.9um 26 Amplitude of FFT result 1 + index 27 Amplitude of FFT result 2 + index 28 Amplitude of FFT result 3 + index 29 Amplitude of FFT result 4 + index 30 Amplitude of FFT result 5 + index 31 Amplitude of FFT result 6 + index 32 Amplitude of FFT result 7 + index 33 Largest amplitude FFT result 1= 0.1um 0~999.9um 34 Frequency of the largest amplitude FFT 1 = ~150Hz 35 result [32 bit word] Hz 36 to 51 Statistical graph data; 16 points covering the range + to -3.2 sigma in 0.4 sigma steps; each data point represents the percentage of data set in that group. 10 = 1% 0 to 99.99% FFT Data for RS232 The FFT amplitude results for the 1024 frequency increments are not available via RS232 because the very large amount of data involved would take too long to send so blocking other data. The following output parameters are deleted: 20 to 32 & 35; parameter 34 alone defines the frequency and sends up to 7 digits. 25

25 PROFIBUS Gauge to Master and RS232 Output Parameter Bit Definition Parameter 0 Bit No. Bit definition Comments 0.0 Solid measurement mode 0.1 Glass measurement mode 0.2 Helix measurement mode 0.3 Straight corrugation measurement mode 1 = mode in use Only one bit will be set at any one time. 0.4 Reserved 0 will be sent 0.5 Diameter distribution not normal 1 = not normal 0.6 Statistic results available 1 = available 0.7 FFT results available 1 = available 0.8 Normal gauge operation 1 = normal 0.9 Diameter above positive error limit 1 = beyond limit 0.10 Diameter below negative error limit 1 = beyond limit 0.11 Controller HOLD 0.12 Controller ON 0.13 Controller RESET 0.14 Controller READY 1 = mode in use Only one bit will be set at any one time Voltage or pulse speed input for PINT1 or PIND1 0 = Pulse, 1 = Analogue Parameter 1 Bit No. Bit definition Comments 1.0 Diameter value not available due to Bits 1.1, 2, 3, 4, 1 = not available 5, 8, 9, 12, Laser or motor fault 1 = fault 1.2 Lens very dirty 1 = dirty 1.3 No cable 1 = no cable 1.4 Internal communication fault 1 = fault 1.5 No reading 1 = no reading 1.6 Wrong parameter sent on CANBUS 1 = wrong 1.7 SPC Effective operating state 1 = ON 1.8 Speed too low in helix or corrugation mode 1 = too low 1.9 Speed too high in helix or corrugation mode 1 = too high 1.10 CANBUS error 1 = error 1.11 PROFIBUS error 1 = error 1.12 DSP error 1 = error 1.13 No meaning 0 will be sent 1.14 No meaning 0 will be sent 1.15 No meaning 0 will be sent 26

26 Beta Lasermike RS232 Single Letter Identifier Protocol Notes No decimal points used Resolution metric = mm, Imperial = inch To request: Send upper case letter Send or or both. Reply to read: Receive upper case letter Receive correct number of digits Receive plus. To write, style 1: Send lower case letter Send the correct number of digits To write, style 2: Send lower case letter Send between one and the correct number of digits Send carriage return or line feed or both Beta Lasermike RS232 Access Codes, Table 5 Req st Write Digits Comments A 5 Actual diameter, single axis only B 5 Position in gate, single axis only C 5 XY Average diameter D 5 X Diameter E 5 Y Diameter F 2 X Position in gate G 2 Y Position in gate H 0 Enable continuous mode I 0 Disable continuous mode J 1 Status: 0 = OK, 1 = Fault K k 1 Control mode: 6 = Reset, 7 = Hold, 8 = Run, 9 = Ready [read only] N n 5 Preset positive error limit O o 5 Preset diameter Q q 3 Number of samples to average [1 to 500] S s 5 Preset negative error limit V 5 Ovality, the absolute value of the difference between X and Y Beta Lasermike RS232 Continuous Data Format Reply, Table 5.1 Data string received Comments $ Start character Gauge head type 7 = PD25, 8 = PD50 Actual diameter Five digits, no decimal point. Status 0 = OK, 1 = No object, 3 = Gate dirty, 5 = No reading Position Sign plus Two digits Cariage return Units M = Metric, I = Imperial Axis X = X axis reading, Y = Y axis reading 27

27 Modbus Communications for Diameter Gauge PSU-RS2 RS232 Port Note that the 0V terminal is referenced to earth and the RTS & CTS not used. The maximum baud rate depends on the cable capacitance and length; for overall screened cable with total screen to core plus core to core capacitance of 300pF per metre, the maximum rate is as follows: Cable length Baud rate 0 to 10m 38K4 10 to 20m 19K2 20 to 40m 9K6 40 to 80m 4K8 Set baud rate through Proton protocol. Set DIP code 0001, enter baudrate to modify baud rate or set baud rate through display on the gauge. And then set DIP code New baud rate will be effective after PSU-RS2 restarted. ModBus Protocol Request values for one or a range of Output parameters Request Command Offset address Data length Error Check! Xx xx Xx Error Check = Command XOR Offset address XOR Data length Reply Command Offset address Data length Data(1) Data(length) Error Check! Xx xx xx xx xx Error Check = Command XOR Offset address XOR Data length XOR Data(1) XOR Data(length) Request values for one or a range of Input parameters Request Command Offset address Data length Error Xx xx xx Error Check = Command XOR Offset address XOR Data length Reply Command Offset address Data length Data(1) Data(length) Error xx xx xx xx xx Error Check = Command XOR Offset address XOR Data length XOR Data(1) XOR Data(length) 28

28 Set values for one or a range of Input parameters Request Command Offset address Data length Data(1) Data(length) Error Check $ Xx xx xx xx xx Error Check = Command XOR Offset address XOR Data length XOR Data(1) XOR Data(length) Reply Command Offset address Data length Error Check $ xx xx xx Error Check = Command XOR Offset address XOR Data length 29

29 Serial Communication Data Standard Introduction CANBUS This is only used to communicate between the gauge head and the other Proton modules; the customer has no control over the data on this bus. PROFIBUS The length gauge head is configured as a PROFIBUS slave. Its operation is totally independent of the CANBUS & RS232 and can operate simultaneously with them. The data that is transferred is described in the PROFIBUS Master to Gauge and RS232 Input Parameter List. This bus is optional and must be fitted during manufacture; it is not possible to add it afterwards. RS232 This is only available on the PSU-RS2-ARQ module and allows for data transmission to standard PCs and any PLC with an RS232 interface. It works independently of the PROFIBUS but the PSU-RS2-ARQ must be connected to the SL1016 to enable the RS232 to function. It can work with two protocols as follows: Proton Standard RS232 Page access mode Proton Standard RS232 Parameter Access Protocol The data format is as follows: No parity No flow control Data bits = 8 Stop bits = 1 Proton Standard RS232 Page Access Mode This is typically used with a Hyper Terminal PC program where each code generates a page of data that is normally used for Demonstration, Test and Calibration purposes. The data can be accessed by typing the Numerical or Alphabetical code followed by the enter key, it is then possible to change presets etc on the page. RS232 Page Access Codes Numerical Alphabetical Comments Code Code 1 list Command list 2 length Continuously updated speed & length value 3 prel1 Preset limit length 1 4 prel2 Preset limit length 2 5 state Display gauge state 6 time Gauge running time canid Set CAN ID 30

30 Proton Standard RS232 Parameter Access Protocol This uses a protocol to access individual parameters or blocks of parameters and is typically used in a production line environment where the gauge is connected to a PLC or similar device. Notes The parameters are split into Input and Output groups, the Input parameters can be both read and written, the Output parameters can only be read The parameter number is the same as the word address used for Profibus data except for the special code con1sec ; refer to the PROFIBUS Master to Gauge and RS232 Input Parameter List for the parameter numbers For Input data: when a word is defined as bits then four hexadecimal characters are required to form the bits 15~0; when a word is defined as a data value then only sufficient characters to define the value in decimal format, with the decimal point where appropriate, are needed; where the data is of double word length then only the first word address is used For Output data: when a word is defined as bits then four hexadecimal characters will be sent; when a word is defined as a data value it is converted to a decimal number with the decimal point but without leading zeros; where a double word is used then only the first word address is used to request the data, the data in both words is automatically converted to a single value If a PC keyboard is being used to enter the codes then the carriage return plus line feed are replaced by the Enter key Set the value of an Input parameter Write Format: & Input Parameter number Space Value without decimal point [0.5m = 50] Request value once for one or a range of Input parameters The request and reply format is identical to the # format given below for output data except that # is replaced by? Request value once for one or a range of Output parameters The request and reply format is identical to the # format given below except that # is replaced by ~. 31

31 Request continuously repeating values for one or a range of Output parameters The repartition rate is the maximum possible and only limited by the data length and baud rate. The parameters must be consecutive when requesting multiple parameters. Request Format 1: # Parameter number Request Format 2: # First parameter number Space Number of parameters Reply Format 1: Parameter value Reply Format 2: First output parameter value Second output parameter value Third output parameter and so on, until the end of the range. Request continuously repeating output of length and speed This uses the code con1sec in place of the parameter number. The repartition rate is once per second with decimal point but no spaces. Request Format: con1sec Reply Format: NNNNN.N (length metres) NNNN.NN (speed m/min) 32

32 PROFIBUS Master to Gauge and RS232 Input List Notes: The Word column defines the PROFIBUS word address or the RS232 parameter number The Profibus page uses words 0~15 [bytes 0~31; the lower byte of each word contains the upper data bits 15~8; where the data is a double word length then the lower word contains the upper bits 31~16] The RS232 protocol uses words 0 ~10, 12, 16, 17 Word Parameter function Units Range 0 Parameter defined as bits, see below 1 Not used 2 Averaging number 1 = 5ms 1~ Hold time 1 = 0.1s 1~100 4 Relay closure time in batch mode 1 = 10ms 1 ~ Preset length 1 1 = 1m {ft} {yds} 0~ Normal mode: Preset length 2 Batch mode: Batch count limit 1 = 1m {ft} {yds} 1 = 1 Count 0~ ~ Pulse per unit length O/P1 1 = 1p/m {p/ft} 0~ Pulse per unit length O/P2 1 = 0.1p/m {p/ft} 0~ Pulse per unit length O/P3 1 = 0.1p/m {p/ft} 0~ Analogue o/p full-scale speed 1 = 1m/min {ft/min} 100~ Minimum speed limit 1 = 0.1m/min {ft/min} 0~ Parameter defined as bits 13 Not Used 14 Length offset 1 = 0.1m {ft} {yds} 0~ Not used Word 0: Bit definitions Bit No. Bit function Comments 0 Measuring mode 0 = Normal, 1 = Batch 1 Reset / accumulate length 1 = Accumulate length 2 Not used 3&4 Measurement units 00 (bit 3 shown first) = Metres 01 = Feet 5 Speed signal source used to generate analogue & pulse outputs 6-15 Not used 10 = Yards (length only, speed in ft/min) 0 = Use average speed value 1 = Use immediate speed value Word 12: Bit definitions Bit No. Bit function Comments 0 Internal or external direction signal source 0 = Internal (bit 12.1) 1 = External (Interface input) 1 Direction for internal source 1 = Down; 0 = Up 2 External direction I/P logic sense For the external signal in a high state then: 1 = Down, 0 = Up 3-15 Not Used 33

33 PROFIBUS Gauge to Master and RS232 Output List Notes: The Word column defines the PROFIBUS word address or the RS232 parameter number The Profibus page uses words 0~15 [bytes 0~31; the lower byte of each word contains the upper data bits 15~8; where the data is a double word length then the lower word contains the upper bits 31~16] The RS232 protocol uses words 1, 2, 4, 9 Word Parameter name Units Range 0 Parameter defined as bits, see below 1 Not Used 2&3 Average Line Speed 1 = 0.01m/min {ft/min} 10~ &5 Immediate Line Speed 1 = 0.01m/min {ft/min} 10~ &7 Length 1 = 0.1m {ft} {yds} 0~ Parameter defined as bits, see below 9 Batch count 1 = 1 10~15 Not used Word 0: Bit definitions Bit No. Bit function Comments 0 Measuring mode 0 = Normal, 1 = Batch 1 Not used 2 Not used 3 Measured length > Preset 1 1 = Length > preset 4 Normal mode: Measured length > P2 Batch mode: Batch count > = limit 1 = Length > preset 1 = Count > = limit 5 Reset / accumulate length 1 = Accumulate length 6&7 Measurement units 00 (bit 3 shown first) = Metres 10 = Feet 8 Speed signal source used to generate analogue & pulse outputs 9 Not used 10 Laser ON 1 = ON 11 Gauge OK 1 = OK 12 No speed measurement available 1 = No signal 13 PROFIBUS communication fault 1 = Fault 14 CANBUS communication fault 1 = Fault 15 RS232 communication fault 1 = Fault Word 8: Bit definitions Bit No. Bit function Comments 0 Internal or external direction signal source 0 = Internal 1 = External 1 Direction for internal source 1 = Down; 0 = Up 2~15 Not used 01 = Yards (length only, speed in ft/min) 0 = Average speed value used 1 = Immediate speed value used 34

34 Specifications CANBUS connection to the gauge head Signals CANH, CANL, Bus 0V, Bus +V output, Shield These are only to be connected to the identical signals on the gauge head. Bus supply output specification Voltage = 24Vdc, referenced to earth. Current = 1.8A RS232 port Signals TX, RX, RTS, CTS, 0V Referenced to earth. Baud rate 1200, 2400, 4800, 9600, & USB Port Signals +5v,D-,D+,GND USB Specification 2.0 compliant; full-speed (12 Mbps) Mains Power Input Voltage = 85 to 264Vac rms Current = 1 A rms maximum Frequency = 47 to 65Hz Power = 35W maximum Environment Ambient temperature range = 0 to +45 C 35