ET-2200 Series Ethernet I/O Modules
Copyright © 2020 ICP DAS CO., Ltd. All Rights Reserved.
-113 -
Example: Function 02 (0x02), ReadDIs
Reads the Digital Input value
[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
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)
Byte 02-03
00 00
(Starting DI 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
02
(Function Code)
Byte 02
01
(Byte Count of the Response)
Byte 03
03
(Value for DI0 to DI1)