Omron SYSMAC CS Series Operation Manual page 156

Command / Response Reference
Response Format
Response Codes
Parameters
If a normal response has been returned by the targeted device, the response
format for the executed explicit message is as follows:
28 01 00 00
Command Response No. of bytes
code code received
If transmission of the Explicit message was successful, but the execution was
not, the FINS response message will still contain response code 0000 as well
as return data. However, an error code, indicating the failure will be part of the
data block. The response format for this case is shown below.
28 01 00 00
Command Response No. of bytes
code code received
For the definition of the error codes for unsuccessful execution of CIP mes-
sages, refer to the SmartSlice GRT1-Series GRT1-PRT PROFIBUS Commu-
nication Unit Operation Manual (W04E-EN-@).
If transmission of the FINS message was unsuccessful, the response frame
will only contain a response code and no data block.
The table below lists the response codes for the FINS message transmission
itself.
Response code
0000 Normal completion.
1001 Command too large, i.e. > 1004 bytes.
1002 Command too short, i.e. < 8 bytes.
110C Device Address Invalid, i.e. > 7E (Hex)
2208 PROFIBUS Master unit not in correct mode, i.e. it is in
OFFLINE mode.
220F • The connection was rejected, i.e. the Master Unit could not
establish connection to send the requested FINS message.
• A timeout has occurred, i.e. the Master Unit did not transmit
the message in time, or the slave device did not respond in
time. An open connection will be aborted.
• The slave device does not support this FINS message.
Send Destination Station Address (Command)
Specifies the station address of device to send the explicit message to over
the PROFIBUS network.
Service Code (Command, response)
The service code defines the action to be implemented with the data sent to
the slave device, e.g. Read, Write, Save. The service codes are listed in the
Operation manual of the targeted slave device.
For normal responses, the service code is returned within the response data
block, with bit 15 of the service code set to ON. For error responses, 94 hex,
which indicates an error, is returned.
996 bytes max.
Service data
Service code
Source station
address (local node)
94
Error code
Service code 94 (Hex)
Source station
address (local node)
Description
Section 5-2
135