Configuring GE Intelligent Platform Drivers and Deadbands for the OPC Collector

About this task

If you want to add items of different data types to Historian using the OPC Collector to a GE Intelligent Platform v7.x driver/OPC Server, and you are using deadbands, you must manually modify the Source Address for each item you add to specify the EGU range for that item.

Note: For other third party (non-GE Intelligent Platforms) OPC Servers, refer to OPC Server documentation for information on how the deadband works.

To change the source address for a specified item:

Procedure

  1. Select the item in Tag Maintenance screen.
  2. Click the Collection tab.
  3. Add the following fields to each tag's Source Address field:
    |SIGNALCONDITIONING,LOWEGU,HIGHEGU,HARDWAREOPTIONS

    where SIGNALCONDITIONING, LOWEGU, HIGHEGU, and HARDWAREOPTIONS are the actual values that you want to use with the particular item.

    For example, you would change an item with a Source Address of Device0:M1015 to Device0:M1015|NONE,0,255,NONE. The 0 and255 values correspond to the LOWEGU and HIGHEGU span of the item.

Example: Using Deadbands with the SI7 Driver

When you use the SI7 driver, itsets the global default values for engineering unit (EGU) limits used for deadband calculations to the following values

l  Lo EGU = 0

l  Hi EGU = 65535

l  EGU Span = Hi EGU LO EGU = 65535  ?

You may want change the default values for this driver if the items that you add use data types other than Integers, such as Floats.

If you want all items to use the same data type, you could change the settings for the HiEGU and LoEGU for the driver in the Registry Editor under the following key: \\HKEY_LOCAL_MACHINE\SOFTWARE\In-tellution\Drivers\SI7\OPC\ItemDefaults. These values apply to all items not specified by the Source Address after you restart the driver.

However, if all items do not use the same data type, as described previously in this section, you must manually modify the Source Address for each item you add in the Historian Administrator so that it includes the |SIGNALCONDITIONING,LOWEGU,HIGHEGU,HARDWAREOPTIONS options.