FAQ Question
In the Alarm List I have seen one of the general driver alarms, for example “Receive timeout”, but I cannot find the description of the error code shown in the Worst Value field. Where do I find descriptions of the general driver error codes?Answer
IGSS comes with a set of predefined system alarms. Some of these alarms are common to all drivers. When such a general driver alarm appears in the Alarm List, the operator will see:
As an example, a general driver error code will appear for the General COMLI 31 protocol driver (7TCML) in the following cases:
- There is no physical connection to the PLC.
- IGSS tries to read an invalid memory area.
The alarm will look like this:
The descriptions of all the general driver error codes are now available in two help files:
1. Alarm Help
In the Table of Contents open the book “The Alarm List”, then the book “Predefined System Alarms” and select the topic “List of general driver error codes”.
2. Driver-Specific Help
In the Table of Contents, open the book “Driver Communication Errors” and select the topic “List of general driver error codes”.
Additionally, the topic “Driver error codes in the Alarm List” describes how driver error codes must be interpreted.