Omron CJ Series User Manual

6 Message Communications
6-20
CJ-series PROFIBUS Master Unit Operation Manual for NJ-series CPU Unit (W509)
Error code 1, Error code 2 (Response)
The contents of the Error code bytes depends on the contents of the Error decode byte and the
slave device. Refer to A-7-4 PROFIBUS DP-V1 Error Codes for more information.
 Response Codes
The MEMORY AREA READ command is used to read the last diagnostics data message the PROFI-
BUS Master Unit received from the specified slave device. The command frame requires three byte
data type specifier, specifying the information and one byte specifying the slave device address.
The number of items to read must be 244 - the maximum data size of the PROFIBUS DP diagnostics
message - or less.
 Command Format
 Response Format
 Parameters
Data specifier code (command)
Response code Description
0000 Normal completion
1001 Command too large, i.e. > 125 words
1002 Command too short, i.e. < 5 words.
110C • Device Address Invalid, i.e. > 7E (Hex).
• The slot number is invalid, i.e. > FE (Hex).
• The Index number is invalid, i.e. > FE (Hex).
• The Data Length is invalid, i.e. > F0 (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.
• The Function code is invalid
6-3-3 MEMORY AREA READ (0101)
Device address
No. of items
(binary)
Command
code
01 01
Data specifier
FF81 00
Response
code
Command
code
01 01
Diagnostics data
(for number of items)

Omron CJ Series Specifications

General

Brand	Omron
Model	CJ Series
Category	Controller
Language	English