Modbus EFM EIE

The Modbus EFM EIE supports connectivity to Modbus RTU devices using the standard Gould/Modicon Modbus protocol as well as Enron extensions for single- and multi-register read/writes of 32-bit integer/floating-point and string values. 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 EFM EIE also supports Enron events and history, and FMS data groups.

Modbus EFM 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.

Custom Modbus data groups can be added and deleted. 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	Various
Protocol(s)	Modbus RTU Modbus TCP/IP
Model(s)	Omni Flow Computer UNICO LRP 250 UNICO RPC v100 UNICO RPC v110 UNICO RPC v200 Weatherford CEO-III Weatherford CEO-IV Weatherford CF-105 (a.k.a. Stealth) Weatherford F-22
Required Files	CxDdsModbusEfmEditors.dll UisModbusEfmDeviceDriver.dll or UisModbusEfmDeviceDriver64.dll
Sample Templates	ModbusEfm_CEOIII.dtf ModbusEfm_Def.dtf ModbusEfm_FmsLiquid.dtf ModbusEfm_SampleBarton.dtf ModbusEfm_SampleFlowAuto.dtf ModbusEfm_UnicoLRP.dtf ModbusEfm_WellPilot_CF105.dtf ModbusEfm_WellPilot_F22.dtf ModbusEfm_WFTA1K.dtf Additional sample templates are available upon request.
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.	ModbusEfm
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.