Ethernet I/O Modules
Example: Function 02 (0x02), Read DIs
[Leading 6 bytes]
[Request]
Command:
01 02 00 00 00 06
01 02 00 00 00 02
[Leading 6 bytes]
[Response]
Response:
01 02 00 00 00 04
01 02 01 03
Reads the digital input value
A description of the command and response is as follows:
Command:
[Leading 6 bytes]
Bytes 00-03
01 02 00 00
(Message Number)
Bytes 04-05
00 06
(Number of bytes remaining in this frame)
[Request]
Byte 00
01
(Net ID)
Byte 01
02
(Function Code)
Bytes 02-03
00 00
(Starting DI Address)
Bytes 04-05
00 02
(Number of Points)
Response:
[Leading 6 bytes]
Bytes 00-03
01 02 00 00
(Message Number)
Bytes 04-05
00 04
(Number of bytes remaining in this frame)
[Response]
Byte 00
01
(Net ID)
Byte 01
02
(Function Code)
Byte 02
01
(Byte Count of the Response)
Byte 03
03
(Value for DI1 to DI0)
ICP DAS CO., LTD.
PETL/tET/tPET DIO Series User Manual, Ver. 2.1, Sep. 2014, Page: 83
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