ET-2200 Series Ethernet I/O Modules
Copyright © 2016 ICP DAS CO., Ltd. All Rights Reserved.
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Example: Function 01 (0x01), Readback Dos
Reads the Digital Output value
[Leading 6 bytes]
[Request]
Command:
01 02 00 00 00 06
01 01 00 00 00 02
[Leading 6 bytes]
[Response]
Response:
01 02 00 00 00 04
01 01 01 03
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
01
(Function Code)
Byte 02-03
00 00
(Starting DO Address)
Byte 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
01
(Function Code)
Byte 02
01
(Byte Count of the Response)
Byte 03
03
(Value for DO0 to DO1)
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