15-23
15 Ethernet
CP2E CPU Unit Software User’s Manual(W614)
15-4 FINS Communications
15
15-4-6 New FINS Commands
Response codes are 2-byte codes which indicate the results of command execution. They are returned
in the response following the command code.
The first byte of a response code is the MRES (main response code), which categorizes the results of
command execution. The second byte is the SRES (sub-response code) which specifies the results.
Additional Information
Certain bits (6, 7 or 15) of the response code will be ON.
When bit 6 or 7 turns ON, it indicates that an error has occurred in the destination CPU Unit.
Refer the the CPU Unit manual to remove the error.
When bit 15 turns ON, it indicates that an error has occurred during the network relay.
The following diagram describes what is a response code.
The MRES codes are shown in the following table along with the results they indicate.
Refer to the SYSMAC CS/CJ/CP/NSJ-series Communications Commands Reference Manual (Cat. No.
W342) or the operation manuals for the relevant unit for further information on response codes.
Response Code List
MRES Execution results
00 Normal completion
01 Local node error
02 Remote node error
03 Unit error (controller error)
04 Service not supported
05 Routing error
10 Command format error
11 Parameter error
22 Status error
23 Operating environment error
25 Unit error
Command
code
Response
code
MRC: Main request code
SRC: Sub-request code
MRES: Main response code
SRES: Sub-response code
MRC SRC MRES SRES
15 14 13 12
1
11109876543210
1: CPU Unit non-fatal error occurs1: CPU Unit fatal error occurs
1: Relay error occurs
Bit
0
Main Response Code (MRES) Sub Response Code (SRES)
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