Mitsubishi MELSEC LJ71C24, User Manual

Page: 271 / 428

15 - 2 15 - 2
15 TROUBLESHOOTING
15.1.1 Checking the H/W LED information
The transmission status and communications error status of the C24 can be checked.
(Contents of 201
H
/202
H
of the buffer memory are displayed.)
When a communication error occurs, take corrective action according to Section 15.3.
POINT
Each of the communications error status, SIO, PRO., P/S, C/N, CH1 ERR. and
CH2 ERR., turns on when an error occurs, and keeps its on-status even after the
communication returns to normal.
Initialize the error information as necessary.
For details, refer to Section 15.4.
(1) Method for displaying
Select [Diagnostics] [System Monitor…] and click the H/W Information
button in GX Works2.
H/W LED Information
CH1 side CH2 side
CH2 side
CH1 side
CH2 side
CH1 side
15