Omron OMNUC W R88A-NCW152-DRT, Manual

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6 DeviceNet Communications
6.8.2 Command/Response Blocks
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6
6.8.2 Command/Response Blocks
This section describes details of Explicit Message command/response blocks when the CS/
CJ-series DeviceNet Master Unit is used.
„ Command Block
The Explicit Message command block is shown below.
„ Response Block
The Explicit Message response block is shown below.
Normal Response
When a normal response is returned to the sent Explicit Message, the response block is
shown below.
Error Responses
The following response is returned if an error occurs for the Explicit Message.
*
For DeviceNet error codes, refer to 10.3.3 Error Codes for Message Communications.
Instance ID
Destination node address
Service code
Command
code
Class ID
(Object)
Service data
(Attribute No. or
attribute No.+ data)
28 01
Source node address
Command
code
Response
code
No. of bytes
received
Service code
Service data
28 01 00 00
28 94
Error code
01 00 00
Command
code
Response
code
No. of bytes
received
Service code
(94 fixed)
Source node address