Omron NT21 - SETUP MANUAL 10-2001 User Manual

6-11SectionSystem Maintenance
163
Check communication at the serial ports (A, B).
Check Screen
The check screen and check method differ according to the communication
method set for the port to be checked.
For Host Link
Example: Serial port A while using the host link
Press Execute to start the check. The data for checking communication is sent to
the host, and is displayed as the Sending Data in hexadecimal.
• If
communication with the host is normal, the reply from the host is displayed at
Received Data in hexadecimal.
• If
a communication error occurs while checking the communication conditions
with the host, a communication error screen is displayed. Since this indicates
that there is a communication fault, check the communication cables and set -
tings.
For NT Link (1:1 or 1:N)
Example: Serial port B while using the 1:N NT Link
Press Execute to start the check. The data for checking communication is sent to
the host, and is displayed as ∗∗ symbols at Sending Data.
• If communication with the host is normal, the reply from the host is displayed at
Received Data as ∗∗ symbols.
• If
a communication error occurs while checking the communication conditions
with the host, a communication error screen is displayed. Since this indicates
that there is a communication fault, check the communication cables and set -
tings.
Checking
Communication at Serial
Ports

Omron NT21 - SETUP MANUAL 10-2001 Specifications

General

Brand	Omron
Model	NT21 - SETUP MANUAL 10-2001
Category	Touch terminals
Language	English