Configure intervals for device group updates and slow polling

The device group update interval parameter specifies the update interval of the <Default> device group. If it is not specified, all unnamed device groups have an update interval of 1,000 milliseconds.

The slow poll interval parameter controls the interval that the Communication Driver polls the field device after it goes into slow poll mode. This occurs when certain connectivity problems occur, such as an unplugged PLC. When the Communication Driver again achieves connectivity with the field device, it returns to normal operation and is governed by the setting of the device group update interval.

Configure the update and poll intervals

1. In the OI Server Manager, navigate to the Configuration node.

   1. Expand the Operations Integration Server Manager node, expand the node group, and then expand Local.

   2. Expand the Communication Driver, and then select Configuration.

   The Global Parameters tab appears in the details pane.

2. In the Device Group Update Interval box, type the value in milliseconds. The default value is 1,000.

3. In the Slow Poll Interval box, type an integer representing the interval, in milliseconds, between polls per transaction item. The default value is 10,000.

4. Select Save.

   The configurations of the update and poll intervals are saved.