6 Message Communications
6-14
CJ-series PROFIBUS Master Unit Operation Manual for NJ-series CPU Unit (W509)
Command Format
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 Get_Cfg PROFIBUS service must be set to 3B (Hex).
Data length (Bytes) (Response)
This parameter defines the number of I/O Configuration bytes returned by the slave device. The num-
ber ranges from 0 to 244 bytes. The most significant byte is set to 00.
I/O Configuration data (Response)
I/O Configuration data returned by the slave device. The I/O Configuration bytes are coded according to
the PROFIBUS standard.
Response Codes
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.
Device
address
Command
code
28 09
Device Service
Access Point
3B
Response
code
Command
code
28 09
Device
address
Data length
(bytes)
I/O Configuration
data
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