Omron CJ Series User Manual

6 Message Communications
6-12
CJ-series PROFIBUS Master Unit Operation Manual for NJ-series CPU Unit (W509)
 Response Format
 Parameters
Destination Address (Command, Response)
The address of the device on the PROFIBUS network, to which the PROFIBUS message will be
sent. The valid address range is 0 to 7E (Hex). The most significant byte in the Response Format is
set to 00.
Device Service Access Point (Command)
The Device Service Access Point for the Rd_Inp PROFIBUS service must be set to 38 (Hex).
Data length (Bytes) (Response)
This parameter defines the number of Input data bytes returned by the slave device. The number
ranges from 0 to 244 bytes. The most significant byte is set to 00.
Input data (Response)
Input data returned by the slave device.
 Response Codes
The PROFIBUS DP Rd_Outp service allows a PROFIBUS Master Unit to read the current output data
of any slave device, even if it is not allocated to the Master Unit.
The figures below show the command and response message formats.
Response code Description
0000 Normal completion
1001 Command too large, i.e. > 2 words
1002 Command too short, i.e. < 2 words.
110C Device Address Invalid, i.e. > 7E (Hex)
2208 PROFIBUS Master unit not in correct mode, i.e. it is in OFFLINE mode.
0001 • The slave has deactivated this service.
• The slave has not responded to the request.
• The slave does not have sufficient memory space for the request data.
• Destination address is same as current master address.
0402 Service is not supported: Device Service Access Point is invalid.
Rd_Outp Service
Response
code
Command
code
28 09
Device
address
Data length
(Bytes)
Input data

Omron CJ Series Specifications

General

Brand	Omron
Model	CJ Series
Category	Controller
Language	English