Omron CJ - INSTRUCTIONS REFERENCE MANUAL 07-2009 Reference Manual page 913

3. Instructions
Communications Flags
Communications Port
Enabled Flag
Explicit Message
Instruction
Explicit Communications
Error Flag
Communications Port
Error Flag
Communications Port
Completion Code
b) When the Explicit Message Was Sent But an Explicit Error Response Was Returned
In this case, the explicit message was sent but an error existed in the explicit message command frame
(code not supported, illegal size, etc.). Here, the Explicit Communications Error Flag (A213.00 to
A213.07: Communications ports 0 to 7) will turn ON and the Communications Error Flag (A219.00 to
A219.07: Communications ports 0 to 7) will remain OFF.
After completion, the Communications Port Completion Code (A203 to A210: Communications ports 0
to 7) will contain the explicit message error code.
CPU Unit
FINS header
FINS header FINS response
Communications Flags
Communications Port
Enabled Flag
Explicit Message
Instruction
Explicit Communications
Error Flag
Communications Port
Error Flag
Communications Port
Completion Code
876
1
0
Instruction
being executed
1
0
1
0
Previous 0000 hex FINS end code
CPU Rack
OK
Explicit message
Error
Explicit error
response
1
0
Instruction
being executed
1
0
1
0
Previous 0000 hex
Explicit error code
Instruction
being executed
0000 hex
DeviceNet network
Explicit message sent
CPU Bus
Explicit message
Unit
(e.g.,
DeviceNet
Unit)
Explicit response
Normal error response
received
Instruction
being executed
0000 hex
CS/CJ/NSJ Series Instructions Reference Manual (W474)
OK
Error
Explicit error
DeviceNet
node
(e.g., slave)