OPC UA input settings
This document aims to describe each setting that is available to the different type of OPC inputs.
OPC input common settings
CurrentValue | Last read value. |
Enabled | If the input should be used or not. |
Errormessage | Current error message. |
InputMode | How the input is read - “OPC input modes”. |
LastChecked | Last time it was read from OPC. |
LastStatusChange | Last time the Quality status was change. |
LastUpdated | Last the value changed when it was read. |
OPCAdress | The OPC input address. |
OPCServer | Which OPC server the input is connected to. |
Quality | The current OPC quality status codes for the input. |
Refreshrate | How often the input should be read in milliseconds. |
OPC input modes
Normal | |
Read | Reads the input periodically according to the Refreshrate. |
Subscription | In OPC, a subscription refers to a mechanism that allows a client application to "subscribe" to receive updates from one or more OPC server items. This means that the client can request to receive notifications or updates when the value of a specific item changes on the OPC server. The client can also specify the rate at which it wants to receive updates, the rate is set by the Refreshrate property. |
Specific settings for each type of OPC Inputs
OPC Counter input
FilterActive | Declared is the filter settings should be used |
FilterAmount | |
FilterPeriod | |
MaxValue | Set the max value where counter starts over again. |
OPC Status input
TrueValue | Which string-value that indicates when the input is True. |