Emerson MMI-20019043 User Manual

Appendix G
NE 53 history

08/2000

1.x

Expansion

Added writing of the device tag using Modbus

3600204 A

Adjustment

Improved communication handling with the
HART Tri-Loop product

Feature

Indication of outputs option board type appears
on display at power-up

05/2001

2.x

Expansion

Added alarm A106 to indicate that HART burst
mode is enabled

3600204 B
3600647 A

Added access to the transmitter in fault status
bit via Modbus

Control of HART burst mode now available via
Modbus

Added support for the Model 1700 transmitter

Added support for the I.S. (intrinsically safe)
transmitter option

Added support to configure the process variable
units for mass flow, volume flow, density and
temperature from the display

Added support for assigning process variables to
the mA and frequency output from the display

Adjustment

Clarified the interaction of the digital fault set-
ting and the fault timeout (last measured value
timeout)

Feature

Drive gain can be assigned to mA output

Pressure compensation added via HART

Channel B can be configured as a discrete output

12/2001

3.x

Expansion

Added support for the configurable I/O option
board

3600647 B
3600785 A
20000325 A
20000325 B
20000150 A
20000150 B
20000148 A

Software version information available via the
display or Modbus

Configurable density cutoff

Additional HART variables can be assigned to QV

NE 53 history

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