142
8.17 Error Notification Function
When an error, warning, or alarm occurs, the A/D converter module notifies the master station of it using remote input
signals and remote registers.
The notification of the error, warning, or alarm can be checked on the LED on the front of the module.
For details, refer to the following:
• PART NAMES ( Page 20, CHAPTER 2)
(1) Notification of an error
The A/D converter module notifies the master station of an error in the following method.
For an error occurred in the extension module as well, the occurrence of an error is notified by the ERR. LED, Error flag
(RXA), and Latest error code (RWr0) of the main module.
(a) Method for clearing an error
The method for clearing an error depends on the error type.
(2) Notification of a warning or alarm
The A/D converter module notifies that a warning or alarm occurs to the master station in the following method.
For an alarm occurred in the extension analog module, the occurrence of an alarm is notified by the ALM LED, Latest
warning code (RWr1) of the main analog module.
Item Description Reference
Error flag (RXA) Turns on when a moderate error or major error occurs. Page 191, Appendix 1.1 (3)
Latest error code (RWr0) An error code is stored when a moderate error or major error occurs. Page 201, Appendix 2 (1)
Error type Clearing an error
Major error The error cannot be cleared.
Moderate error
Eliminate the cause of the error and then turn on Error clear request flag (RYA) or Initial data setting
request flag (RY9) from off.
Item Description Reference
Warning flag (RX7) Turns on when a minor error occurs. Page 189, Appendix 1.1 (1)
Latest warning code (RWr1) The error code or alarm code is stored when a minor error occurs. Page 201, Appendix 2 (2)
To Next Page
Loading...
