Omron CJ Series User Manual

6 Message Communications
6-8
CJ-series PROFIBUS Master Unit Operation Manual for NJ-series CPU Unit (W509)
For the definition of the error codes for unsuccessful execution of CIP messages, refer to the Smart-
Slice GRT1-Series GRT1-PRT PROFIBUS Communication Unit Operation Manual (Cat. No. W04E-
EN-
□).
If transmission of the message was unsuccessful, the response frame will only contain a response
code and no data block.
 Response Codes
The table below lists the response codes for the message transmission itself.
 Parameters
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.
Class ID (Command)
Specifies the class ID for the explicit message destination. The supported Class ID values are spec-
ified in the Operation manual of the targeted slave device.
Instance ID (Command)
Specifies the instance ID for the explicit message destination. The supported Instance ID values are
specified in the Operation manual of the targeted slave device.
Service Data (Command, response)
Response code Description
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 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 message.
Command
code
28 01
No. of bytes
received
Error codeResponse
code
Source station
address (local node)
Service code 94 (Hex)
00 00 94

Omron CJ Series Specifications

General

Brand	Omron
Model	CJ Series
Category	Controller
Language	English