Omron CP - PROGRAMMING MANUAL 05-2007 Programming Manual page 893

Network Instructions
Operation
Condition
1) Normal end
2) Error end a) When the explicit
message could not
be sent
b) When the explicit
message was sent
but an explicit error
response was
returned
1) Normal End
CPU Unit
FINS header
Explicit
message
instruction
FINS header FINS response
860
The Explicit Communications Error Flag is used to determine if communica-
tions ended normally or in error.
For error completions (i.e., when the flag is ON), the Communications Port
Error Flag for FINS commands is used to determine if the explicit message
was never sent (i.e., when the flag is ON) or if there was an error in the explicit
message that was sent (i.e., when the flag is OFF).
The Communications Port Completion Code will contain 0000 hex after a nor-
mal end, an explicit message error code after an explicit communications
error end, and a FINS message completion code after a FINS error end.
Explicit
Communications Error
Flag (A213.00 to
A213.07:
Communications port
No. 0 to 7)
OFF
ON
An explicit message is sent and a normal response is returned.
The corresponding Explicit Communications Error Flag (A213.00 to A213.07:
Communications port No. 0 to 7) will be OFF and the Communications Port
Completion Code (A203 to A210: Communications port No. 0 to 7) will contain
the explicit message normal response code of 0000 hex.
OK
CJ-series
Explicit message
CPU Bus
Unit
OK
(e.g.,
DeviceNet
Explicit response
Unit)
Communications Port
1
Enabled Flag
0
Explicit Message
Instruction
1
Explicit Communications
Error Flag 0
1
Communications Port
0
Error Flag
Communications Port
Previous
Completion Code
Communications Port
Error Flag (A219.00 to
A219.07:
Communications port
No. 0 to 7)
OFF
ON
OFF
DeviceNet network
Explicit message sent
OK
Explicit message
OK
Explicit response
Normal explicit response
received
Instruction
being
executed
0000 hex 0000 hex
(normal end)
Section 3-24
Communications Port
Completion Code (A203
to A210:
Communications port
No. 0 to 7)
0000 hex
FINS messages comple-
tion code
Explicit message error
code
Processed normally
DeviceNet
node
(e.g., slave)
Instruction
being
executed
0000 hex