SHIMADZU GPIB MANUAL

Transcription

1 SHIMADZU GPIB MANUAL

2 CONTENTS 1. General specifications Transmission from AG to External Device Transmission of Test Conditions Transmission of Load/Stroke (Real-time) Transmission of Key Code Data Transmission front External Device to AG Control Command to AG Transmission State Setting Command to AG Test Condition Setting to AG... 17

3 I. General Specifications As an optional interface for Shimadzu AUTOGRAPH AGS-D Series IEEE Standard Digital Interface for Programmable Instrumentation (IEEE Standard ) so-called GPIB (to be referred to as GPIB also referred as IEEE-IB, IEEE-488 bus, or HP-IB) is used to transmit to an external device the data obtained by AGS-D, It is also possible to control the AGS-D from an external device. 1) External device connected to AGS-D becomes GPIB's Controller, which has both listener and talker functions. 2) Synchronous system Asynchronous transmission by GPIB's 3-line handshaking 3) Circuit GPIB special purpose buses (8 data buses, 3 handshake buses, 5 control buses, SIG-GND) 4) Error control There is no parity bit for data.

4 5) GPIB Interface functions Table 1 No Symbol Function Init by IFC 1 SH 1 Source Handshake 0 2 AH 1 Acceptor Handshake 0 3 T 8 Talker 0 4 L 4 Listener 0 5 SR 1 Service request 6 RL 1 Remote/Local 7 PP 0 Parallel poll (no function) 8 DC 1 Device clear 0 9 DT 1 Device trigger 0 10 CO 0 Controller (no function) 6) State 1. Local State This state occurs when the AG power is turned on, REN turns equal to 0 ( H ) or a GTL message is received. In this state, therefore, no response is given to a bus line signal as a true. 2. Remote State If an AG listener address is received with REN being equal to 1( L ), this state (remote state) occurs and the GPIB functions become active for the first time. This state allows AG key codes, Load-Stroke data, etc to be transmitted at a real time, and allows controls such as UP/DOWN/STOP from external device. 3. Remote with Lockout State This state locks some of AG's keys, and allows receiving control command (TEST SPEED etc.) from external d e v i c e. 7) Device No. setting Can be arbitrarily set with an address DIP switch. No. 1 to 2.When shipping N o. 1 i s set) * The address switch is read only when the AG power is turned ON. 8) Transmission code ASCII code or binary code * Can be distinguished by the main header u n i t or status bytes upon serial polling of external device. * For detailed codes, refer to Section 2 on. 9) Primary delimiter (indicates. an end of transmission data) EOI: End or Identify 10) GPIB Cable connector A cable connector for external device connection beyond AG's GPIB connector is not included. 11) Sending sequence of GPIB commands is based on IEEE Standard 488.

5 2. Transmission from AG to External Device The test conditions, Load-Stroke data (real time) and key-in codes can be transmitted from AGS-D to the external device. Each transmission item is transmitted as a set of packs with an identification code attached (1 pack in 8 or other bytes). The set consists of a main header (1 pack) and sub headers (arbitrary number of packs). or SB Main Header Subheader Subheader SB Main Header Data Area (EOI) The header and the status byte in serial polling are distinguished as follows: Table 2 SB : Status Byte EOI : End or Identify AAXX Main Header Indicates the test condition SB: 40H, 41H B Data Area X X X X X X X X X X (EOI) Real-time Load-Stroke data SB: 60H C X (EOI) Key in data of AGS-D SB: 61H Applications The sub header following the main header is 8 bytes per pack. i For sub header, as a rule, numerical data follows a 2-byte sub header The header and data are all in the ASCII code. Primary delimiter is EOI. Numerical data following the header B is binary. No sub header is attached. Primary delimiter is EOI. Key Data following the header C is binary. No sub header is attached. Primary delimiter is EOI. Note) SB represents the status byte in serial p o l l i n g by external device. Blank code (31H)

6 2.1 Transmission of Test Conditions The items set on AGS-D Control/Display panel are transmitted. EXAMPLE: Transmitting Items A A _ 1 A _ 8 A 2 A _ 2 B 5 _ A 6. 0 _ A (EOI) Note) Request for transmission of test conditions from external device. (Refer to 3.2)

7 The header is 8 bytes per pack. Of them, first 2 bytes express a function. If there is a numerical data following them, it shall have up to 6 digits [including a decimal point (.) and a minus sign (-)]. The numerical data less than 6 digits shall be left justified, with a blank code used for the rest. When there is no numerical data remaining bytes shall be a blank code. A A 0 0 SB: 40 H A A 1 0 SB: 4 1H Main Header Contents of Test Mode Single test. Cycle test SINGLE CYCLE Subheader Contents 1 1 X X X X X X Test Speed TEST SPEED Mm/min 1 2 X X X X X X 1 3 X X X X X X Chart ratio Chart speed CHART RATIO CHART SPEED 1 A X X X X 2 A X X X X X X 2 B X X X X X X Rated capacity of load cell kgf Tf Gf N kn mn Full scale load of a measured value Load Range in use Load direction UP DOWN LOAD LOAD RANGE LOADING DIRECT 5AXXXXXX 5 1. Setting value for a lower limit point The mode at lower l i m i t is LOAD MIS LOAD ' f \ 5 Q Li B A K X X X X X P 6 Q is STROKE Stop at lower limit point j Return at lower l i m i t point Setting value for a upper liffiit point The mode at 'upper l i m i t is LOAD, is STROKE Stop at upper limit point Return at upper limit poitit STROKE STOP KETDBN HAK \ LOAD STROKE STOP ftetum {

8 2.2 Transmission of Load-Stroke Data (Real-time) Load-Stroke data is transmitted at a real time. If you have the Extension display unit, the extension data is transmitted together. A transmission rate can be selected out of 50, 100, 200, 500 msec. based on the receiving ability of External device and on requirement of data, (Refer to 3.2) This data, which consists of the main header B and subsequent binary data as shown below, has a total of 17 bytes. SB (status byte in serial polling) is 50H.

9 Break (Note 5) Load Range On break Testing Range Binary Value Binary 1 Testing 0 Up/Down -- Break AG Motion Motion Binary (Note 4) STOP 0 HOLD 1 UP 2 DOWN 3 Shift-UP 4 Shift-DOWN 5 Return-UP 6 Return-DOWN 7 Blank Code (20H) No. of. Cycles (binary 2 bytes) A blank is transmitted in the SINGLE mode. Load Data (binary 2 bytes) (Note 3) Calculate an actual load value with the following formula- Actual Load = Load data x Load Cell Capacity value(kgf, etc) 4000 load range -Extension 1 Data (binary 2 bytes) or Blank code (Note 2) Crosshead Stroke Data (binary 3 bytes) (Note 1) Unit: 0,01 mm Dividing this value by 1000 results in a stroke value. Stroke displaying value is used up to 0.Ol mm unit. Main Header Indicating Load-Stroke Data (ASCII 1 byte)

10 Note 1) The polarity of binary data is displayed by 2 complements. Example) Crosshead Stroke data (binary 3 bytes) Note 2) Extension display value is converted this value. (It takes 4000 at a time of full-scale extension.) (Output from Extensometer amp. Is specified DC 0 to 5V full scale.) When the Extension display function is not i n s t a l l e d, blank code would be transmitted. Note 3) Load data becomes 4000 at a time of f u l l - s c a l e loading of each load range. This value is defined out of the resolution of the A/D converter. Note 4) Crosshead motion is shown on real-time data sampling, HQLD is obtained with optional Automatic Load-Strain Control Device. Note 5) This becomes 0 when UP or DOWN is key-ined and becomes 1 when Sample Break function detects test specimen break. Note 6) Set from external device whether to turn on. /off Load-Stroke data transmission, (Refer to 3. 2 )

11 2.3 Transmission of Key Code Data When the key on the Control/display panel is pressed, its data is transmitted in terms of main header and subsequent key code. SB (status byte in serial polling) is 61h. Key Data (binary) For the code, refer to T a b l e 3. Main Header Indicating Key Code D a t a (ASCII 1 byte) Key Code (HEX) Note) Set from the external device whether to turn on/off key code data transmission. (Refer to 3.2) Table 3 AG->External device transmission key code Key Name TEST SPEED OA 1 0B 2 OC 0D 3 5 OE 10 OF CHART RATIO A 20 2B 50 2C 100 2D 1/100 on 2E Off Key Code (HEX) A 3B 3C 3D 3E 3F A 4B 4C 4D 4E Key Name CHART SPEED /100 on Off LOAD RANGE STOP UP DOWN SHIFT-UP SHIFT-DOWN

12 3. Transmission from External Device to AG The following can be transmitted from External D e v i c e to AG: Control commands to AG (key-in settings from External Device} Transmission state settings to AG Setting of test-condition to AG Transmit in the following configuration: Table 4 Main Header Oata Area Applications B X (EOI) Contro Command to AG (Key In Setting) -Primary delimiter is EOI C X (EOI) Transmission state setting command to AG -Primary delimiter is EOI D X X X X X X X X (EOI) Test Speed setting to AG -Primary delimiter is EOI

13 3.1 Control Command to AG (Key-in Setting from External Device) Set and transmit with the following command when controlling AG (UP, DOWN, and STOP motions of the crosshead) from External Device. Key code for control The keys which are externally available for key-in setting are as follows: 1) STOP, UP, DOWN, RETURN, SHIFT-UP, SHIFT-DOWN 2) TEST SPEED key (standard 0.5 ~ 1000) LOAD Range (x1 ~ x100) CHART RATIO key (0.01 ~ 100) CHART Speed key (0.5 ~ 3000) However, AG accepts the keys mentioned in 2) only when a LOCK command from External Device is ON. (Manually key setting on the Crosshead Controller is disabled) (Refer to 3.2) For the key-in data codes, refer to Table 5. Main Header which indicates the control command (ASCII 1 byte) Example) command B 41H (EOI)

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15 3.2 Transmission State Setting Command to AG Each transmission from AG to External Device is selected and set by a command from External Device. Use the following command for setting and transmission. Transmission Setting Command Code to AG For the contents of each command refer to table 6. Main header which indicates transmission state setting command (ASCII 1 byte) Table 6 Command Code 41H 42H 43H Contents of Transmission State Setting Command Request for test conditions transmission Load-Stroke data transmission ON Load-Stroke data transmission OFF Note 1 Note 2 44H 45H Key Key code data transmission "ON" code data transmission "OFF" Note 3 46H 47H Crosshead Controller LOCK Crosshead Controller LOCK ON OFF Note 4 57H 58H 59H 5AH Transmission Rate of real data 50msec 100msec 200msec 400msec Note 5

16 Note 1) Note 2) A request for test condition makes AG transmit test conditions. When Load-Stroke data transmission is being turned ON, AG transmits data each set period, _50msec, etc. Note 3) If the Key on the Control/display panel is pressed w h i l e key code data transmission is turned ON, its relevant key code will be transmitted. Note 4) while the Control/display panel is locked on, even if The key on the Control/display panel is manually changed that key will not accepted. During this state, setting can be changed by a control command from External Device. (Refer to 3.1 Control Command to AG) When the Control/display panel is set to the LOCK OFF or ON, the setting of each key on the panel at that time is valid. Example: Transmission from External Device to AG AG Load-Stroke Data transmission state AG Key Code Data transmission state Transmission from. AG to External Device

17 3.3 Test condition Setting to AG Set test-speed, Minimum point (MIN) and Maximum point (MAX) with the following command from External Device. This setting can be acceptable even during testing. Note) AG accepts this value only when a LOCK command from External Device is ON (Manual key setting on the Control/display panel is disabled) Test Speed Setting to AG Set and transmit with the following command when setting TEST SPEED, in addition to setting TEST SPEED 500, 300,etc. With section 3.1 Control Command to AG. This is available when setting arbitrary crosshead speed Minimum point (MIN) setting to AG Set and transmit with the following command when setting Minimum point (MIN) setting for CYCLE Test. This is available when CYCLE test. (This setting would be ignored when SINGLE test.)

18 Maximum point (MAX) setting to AG Set and transmit with the following command when setting Maximum point (MAX) setting for SINGLE and CYCLE test.