Omron FH series User Manual page 289

RS-232C/422 Communications
Before Performing a Communications Test
This example assumes that [Serial (RS-232C/422)] − [Normal] or [Normal (Fxxx series method)] is selected
as the Communications Module.
Stop the program on the PLC when you check the communications settings.
Checking the Communications Settings
Use the following procedure to check if the communications settings are correct.
If the character string was not sent or received, check the following:
• Are the communications settings correct for the connected device?
• Is the cable connected?
• Are all cables wired correctly?
After you have confirmed the communications status as described above, send an actual measurement
command to the Controller and check to confirm that Vision Sensor communications are operating correctly.
Vision System FH/FZ5 Series User's Manual
for Communications Settings (Z342)
1. On the Main Window, select [Tool] − [System Settings].
From the tree view on the left, select [System
Settings] and then select [Communication] −
[RS-232C/422 (Normal)] or [RS-232C/422 (Normal (Fxxx
series method))].
2. Click the [Confirmation] tab.
Reception Confirmation:
3. Send an ASCII character string to the Sensor Controller
from the PLC or other external device.
4. The command received from the PLC or other external
device will be displayed here, following [Receive].
Transmission Confirmation:
5. Click the button to the right of [TEST STRING].
6. Enter the character string (12 characters or less) that you
want to send to test communications. Select [Local echo] if
you want to perform an echo check of the sent character
string.
7. Click the [Transfer] button to send the input character
string to the PLC or other external device.
8. If [Local echo] was selected, the character string that was
sent will be displayed after [Send].
9. Confirm that the character string was received by the PLC
or other external device.
Non-procedure Communications
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