YOKOGAWA FA-M3 Vitesse, Инструкция по эксплуатации

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9-6
<Toc> <Ind> <9. Configuration >
IM 34M6H28-01E 1st Edition : Feb.01,1999-00
R: System reserved
EX: Message communications
P: I/O communications: Polling
ST: I/O communications : Bit strobe
• The I/O data offset is the relative position from the beginning of every I/O data buffer.
The unit for the I/O data offset/size is bytes.
• The input data size of a Bit Strobe should be less than or equal to 8 bytes.
• Set the size/offset to 0 when no I/O communications are being carried out.
• Registration is not possible during scanning.
2) Read device
Reads device information of a node from the scan list.
• Request
T090104-4.EPS
Data position no. Content
400 Command = $04
401 Node number
• Response (normal exit)
T090104-5.EPS
Data position no. Content
400 Command = $04
401 Node number
402 Vendor ID
403 Device type
404 Product code
405-407 Reserved
408 Communications type
409-411 Reserved
412 Size of output data (bytes)
413 Offset of output data (bytes)
414-415 Reserved
416 Size of input data (bytes)
417 Offset of input data (bytes)
418-426 Reserved
• Response (error exit)
T090104-6.EPS
Data position no. Content
400 $8004
401 Exit code