represents a logical link to an Omron PLC Device using the Host Link protocol.
The Omron Host Link PLC Tag
represents a logical link to an Omron PLC Device using the Host Link protocol.
The Omron Host Link PLC Tag supports the configuration properties of the Omron Device, plus these properties:
| Property | Type | Version | Description |
|---|---|---|---|
| Channel | Reference | 1.0 | The Omron Serial Communication Channel to the device. |
| UnitNumber | USINT | 1.0 | The address of the device (0 - 31). |
| UseMonitorMode | BOOL | 1.0 | Whether the device should be placed in monitor mode (TRUE) or run mode (FALSE) when communication is established. |
The Omron Host Link protocol does not allow write operations when the PLC is in RUN mode. To write data to an Omron PLC using the Host Link protocol, set the operating mode of the PLC to MONITOR. Fernhill SCADA can do this for you if you set the UseMonitorMode property to TRUE.
The Omron Host Link PLC Tag supports the tag commands of the Omron PLC Tag.
This is an example of an Omron PLC at address 0, communicating via a channel called ".Remote Plant":
| Property | Value |
|---|---|
| Channel | .Remote Plant |
| UnitNumber | 0 |
| UseMonitorMode | False |
The Omron Host Link PLC Tag builds on the features of these tag types:
For properties common to all types of Omron device.
Omron Serial Communication ChannelFor more information on Omron serial communications channels.
Omron Register BlocksFor more information on the Omron register blocks that can be associated with Omron Host Link PLC Tag tags.
To learn about abnormal conditions in SCADA applications.
For the meaning of terms used in Fernhill SCADA.