The Modbus Ethernet OPC Server is an OPC Alarm and Events server that supports the following alarm types:
Alarm parameters are set up in the Configurator under the Alarm Definitions tree control, shown in the figures below, which is divided into two alarm template types: Digital alarm definitions and Limit (analog) alarm definitions. Digital alarms can be defined for a data item of "BOOL" type only, while Limit alarms can be defined for all other types except for the "String" data type. Default alarm definitions are provided in the sample configuration database.
Limit Alarm Definition Properties
Digital Alarm Properties
See Also
Introduction to Modbus OPC Server
Starting the Modbus OPC Server Configurator