Omron CP - PROGRAMMING MANUAL 05-2007 Programming Manual page 894

Network Instructions
2) Error End
CPU Unit
FINS header
Explicit
message
instruction
FINS header FINS response
The are two possibilities for error ends, as described in the next two subsec-
tions.
a) When the Explicit Message Could Not Be Sent
In this case, the explicit message was never sent on the network, e.g.,
because the network was not running. Here, both the Explicit Communica-
tions Error Flag (A213.00 to A213.07: Communications port No. 0 to 7) and
the Communications Port Error Flag (A219.00 to A219.07: Communications
port No. 0 to 7) will turn ON.
After completion, the Communications Port Completion Code (A203 to A210:
Communications port No. 0 to 7) will contain the FINS message error code.
OK
Explicit message
Error
Explicit response
FINS error response No explicit response
Communications Port
Enabled Flag
Explicit Message
Instruction
Explicit Communications
Error Flag
Communications Port
Error Flag
Communications Port
Completion Code
DeviceNet network
FINS error
Explicit message not sent
CJ-series
CPU Bus
Unit
(e.g.,
DeviceNet
Unit)
Network not running, etc.
1
0
Instruction
being
executed
1
0
1
0
Previous 0000 hex FINS end code
Section 3-24
DeviceNet
node
(e.g., slave)
Instruction
being
executed
0000 hex
861