## OPC Server Assistant

The OPC Server Assistant is a mechanism that lets you select which OPC measurements to expose to the OPC server. Custom labels are not mapped to OPC server by default, therefore they have to be manually exported to OPC server.

OPC Server Assistant is accessible through and user interfaces.

#### OPC Server Assistant interface

A | Unavailable registers (Grayed-out) | B | Output Register | C | Setup Registers

### Exporting OPC measurements through

If you customized an device’s default templates (for example, custom labels), those measurements are not exposed to the OPC server by default. To manually export those measurements to OPC server:

1. Launch and open the device node.
2. Navigate to the ION module that contains the register that you want to expose to OPC server. Right-click to display the module setup dialog.
3. Click OPC to open the OPC Server Assistant.
4. Select (check) the box beside each item you want to expose to the OPC server. Clear (uncheck) the box beside each item you do not want to expose to the OPC server.

Note

Grayed-out items (such as “PF sign a” in the Power Meter module) cannot be selected or changed. Those registers cannot be removed using OPC Server Assistant.

1. Click File > Export. Click Yes to save your changes.

### Exporting OPC measurements through

For Modbus devices, you can use the to expose OPC measurements to the OPC server:

1. Launch the . Click File > Open, then navigate to the folder containing the ION map file for your Modbus device. Select it and click Open.
2. Navigate to the module containing the register you want to map. Right-click the module and select OPC. The OPC Server Assistant appears.
3. Select (check) the box beside each item you want to expose to the OPC server. Clear (uncheck) the box beside each item you do not want to expose to the OPC server.
4. Click File > Export. Click Yes to save your changes.

### Description of commands

This section describes the commands available in the OPC Server Assistant.

Command | Result
--- | ---
File > Export | Saves your configuration changes. Items that are selected (checked) in the OPC Server Assistant are exposed to the OPC server, while cleared (unchecked) items are not.
File > Exit | Closes the OPC Server Assistant.
Edit > Reset values | Discards your changes and reverts to the last saved configuration (for the items that are exported to the OPC server).
Edit > Select All | Selects (checks) all registers.
Edit > Clear All | Clears (unchecks) all registers that are not grayed out.
View > Setup Registers | Displays the setup registers, in addition to the output registers, for the module.
View > Measurements | Displays a column containing the measurement names associated with the registers.