8. USAGE EXAMPLE
IMR01Y36-E2
91
Command data format
Command data format at communicating by an Explicit message with SYSMAC CJ is shown with the
following.
[Request data format from the PLC (master)]
28
01
534 bytes
max.
[Response data format]
•
Normal response
28 01 00 00
534 bytes
max.
•
Error response
28 01 00 00
94
•
Cannot be sent/Timeout
28 01
As this response (Cannot be sent/Timeout) is an error response sent to the CPU unit from
the DeviceNet master unit of the SYSMAC CJ, this is not an error in DeviceNet
communication.
Service data
Service data
Error code
Instance ID
No. of bytes
received
No. of bytes
received
Object
class ID
Response
code
Response
code
Response
code
Command
code
Command
code
Command
code
Command
code
Service code
Service code
Service code
(94H):
14H
+
80H
=
94H
14H: Error response
80H: Response data
Destination node address
Source node address
Source node address