Emerson Process Coriolis Meter Master

Compatible Devices

RFT9739 Multivariable Field Mount Transmitter
9739 MVD Field and Truck Mount Multivariable Transmitters
CDM Analog
Model 1500 / LF-Series LFT2
Model 1500 with the Filling and Dosing Application
Model 1700 / LF-Series LFT1
Model 2500 / LF-Series LFT5
Model 2700 / LF-Series LFT3
Series 3000 MVD
Series 3000 MVD NOC( 4-Wire)
Series 3000 NOC( 9-Wire)
Filling Mass Transmitter(FMT)
HFVM Analog
FDM Analog
FVM Analog
SGM Analog
GDM Analog
MVD Direct Connect with Standard Core Processor
MVD Direct Connect with Enhanced Core Processor
Model 5700 Config I/O

Verified Device

Model 5700 Config I/O (RS-485)

Accessible Data

Access to the Emerson Coriolis string registers can be attained by mapping to a string data tag. The string length should be set to the maximum number of characters allowed in the Emerson Coriolis. For example, if a string register begins at address 68 and ends at address 71, it consists of 4 registers. Since each register consists of 2 characters, the maximum length is considered to be 8. In this case the string length should be set to a value of 8.

Note – It is the programmer’s responsibility to set the string length. If the string length is not set correctly unintended behavior can occur. Set the Packing to “ASCII Big-Endian” so the system can convert the data value to a string format.

Some registers in the MMI Driver are meant to be accessed for their individual bit values. For example, “Modbus1”, a register that is in the “Emerson 5700 Config” device is one such register. To access the individual bits of this register, create a Flag Tag and pick the desired register, “Modbus1” in this example. In the “Treat As:” dropdown, select Bit Array Big Endian, then choose the applicable bit in the “Bit Number:” field.

Access to 64-bit double values is possible by using data arrays in conjunction with user functions provided. Simply map all parameters of type double to a numeric tag array. The array selection is available in each tag. Then use the following user functions to get and set double values, respectively.

cstring AsTextR64(Data)

Where Data is the first element in the array of the double value that will be passed as a string.

void TextToR64(Input, Output)

Where Input is a string representing a double value and Output is the first element in the array of the double value to be set.

Note: Other 64-bit math functions are also available.

Cable Information

Revision History

9/19/16 – Created
10/14/16 – Added 64-bit access note
2/21/17 – Added notes on accessing Strings and Bit Access