Communication Verification Example - Omron Sysmac F430-F Series Connection Manual

6.3. Communication Verification Example

The example used in this document, is the case where a program is sent and received from
the controller to the smart camera using a program in structured text (ST) language and
Protocol Macro data.
The controller and smart camera send and receive the message "Inspection trigger
(Sequence No.900)". An Overview of the Sequence Operation
● Sequence Operation Overview
① Execute a protocol macro instruction (ExecPMCR instruction) specifying sequence No.
900 of protocol macro data in the ST language program.
② "Serial trigger" command of Sequence No. 900 is selected from Protocol Macro data
and sent to the smart camera
③ Execute command with smart camera according to the data sent from the controller.
④ The result of the command executed by the smart camera is received by the controller
and stored in the specified variable
CPU Unit
Project file
Program in
language
IF .... THEN
..........
ELSE
..........
END_IF;
① Execute Protocol Macro
Command
(Specify sequence No. 900)
Output_RecvData
Received Data
Storage Area
Controller
Serial Communications Unit
ST Protocol Macro
Data
Sequence No.1
Sequence No.2
Sequence No.900
Receive
④
command
execution
and store
RS-232C
② Serial Trigger
(Sequence No. 900)
Send Data
Receive Data
result
in
Smart camera
Execute
③
C d
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