Troubleshooting
11-2
(2) Check the LED state of the slave unit
1. Check the
“LINK” LED.
The
“LINK” LED is flashing
Normal
If it the LED is not flashing, refer to P. 10-4 to remove the cause of the error.
P. 11-4
2. Check the
“ALM” LED.
The
“ALM” LED is unlit
Normal
If the LED is not unlit, refer to P. 10-4 to remove the cause of the alarm.
P. 11-4
11.2 Check using input/output data
(1) Checking the error detail information
Gateway error code is stored as the latest error mode (index: 2081h, sub-index: 2h).
P. 5-4
(2) Checking the error occurrence ID information
The error occurrence ID is stored in the latest error occurrence ID (index 2081h, sub-index 3h).
P. 5-4
(3) Checking the status detail information
If the error issued was a slave unit status error, it is possible to check the details of present
phenomenon by reading the status details for the relevant ID.
P. 5-6
