Modbus Omni EIE

The Modbus Omni EIE works with a number of OMNI flow computers. This EIE supports connectivity to Modbus RTU devices using the standard Gould/Modicon Modbus protocol. Modbus RTU, TCP, and ASCII protocols are supported. The protocol selection is a property of the remote device. In addition to support for common Modbus data groups, the Modbus Omni EIE also supports Omni archives and FMS data groups.

Modbus Omni EIE data groups are highly configurable and depend on you to define each to suit your unique needs. This enables you to create and alter interface templates for a range of Modbus devices, which vary widely in their configuration requirements. FMS data groups depend on other data groups to be defined in order for FMS transactions to be completed. The "Composite Data Group" is supported by this EIE.

Modbus data groups can be added and deleted. Archive (i.e., Enron) data groups must contain the correct number and types of data group elements per the Enron EFM standard. For applicable data group elements, units must be defined in the template. See your field device's manufacturer documentation for supported unit types. UDCs can be mapped to data group elements.

Specifications

The following table lists and describes EIE specifications.

Manufacturer	Omni Flow Computers
Protocol(s)	Modbus RTU Modbus TCP/IP Modbus ASCII
Model(s)	Various OMNI flow computers
Required Files	CxDdsModbusOmniEditors.dll UisModbusOmniDeviceDriver.dll or UisModbusOmniDeviceDriver64.dll
eieType eieType identifies the CygNet EIE type associated with a template (in the deviceDefinition element); it links a device driver with a template. It typically refers to the name of the protocol according to which an EIE conforms. A value includes a CygNet-defined string, up to 20 characters, alphabetical characters only, and no spaces. The default value is supplied in the template and is not typically changed.	ModbusOmni
Sample Templates	ModbusOmni_202475.dtf
Cryout Support	No
FMS Support	Yes, using FMS EFM data items. Note: In cases where both GMR and FMS support was previously available, CygNet Measurement now provides data support using FMS data items only. If you were previously using GMR data items, you must update to use FMS data items. Update options are provided as part of your software upgrade procedure.
Listen Mode	Yes
64-bit Support	Yes. See 64-bit Device Drivers.