Omron NJ501-1300 - Timing Chart for Output Variables Used in Communications

9 Socket Service
9-16
NJ-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
You can monitor the values of the output variables to determine the status throughout instruction execu-
tion. The following timing chart shows the operation of the output variables.
UDP
9-6-3 Timing Chart for Output Variables Used in Communications
Output Variable Operation and Timing
End socket communications.
Output variable: Done = TRUE
Normal End
Instruction end normally?
Output variable: Error = TRUE
Error End
Execute SktClose instruction.
Close Processing
Output variable: Done = TRUE
Normal End
Instruction end normally?
Output variable: Error = TRUE
Error End
Execute SktUDPRcv instruction.
Receive Processing
Output variable: Done = TRUE
Normal End
Instruction end normally?
Output variable: Error = TRUE
Error End
Execute SktUDPSend instruction.
Send Processing
Output variable: Error = TRUE
Error End
Output variable: Done = TRUE
Normal End
Instruction end normally?
Execute SktUDPCreate instruction.
Open Processing
Check error details based on
the error code and take
suitable actions.
Output variable: ErrorID
Check error details based on
the error code and take
suitable actions.
Output variable: ErrorID
Check error details based on
the error code and take
suitable actions.
Output variable: ErrorID
Check error details based on
the error code and take
suitable actions.
Output variable: ErrorID