Field descriptions – Rockwell Automation 1794-IE8H, Series B FLEX I/O 8 Input Hart Analog Module Installation Instructions User Manual

Page 27

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FLEX I/O 8 Input HART Analog Module 27

Publication

1794-IN108D-EN-P - January 2014

Secondary Master Enable (SME)/ Primary Master Inhibit (PMI) (Series A
Mode)

Bits

(1)

1 (Default)

2

3

4

PMI

8, 9, 10, 11, 12, 13, 14, 15 0

0

1

1

SME

0, 1, 2, 3, 4, 5, 6, 7

0

1

0

1

HART Smooth Filter

Pulsed

On

Off

On

Rebuild

On

On

Off

Off

HART Read Back

On

On

Off

Off

Primary Master

On

On

Off

Off

Secondary Master

Off

On

Off

On

(1)

Where:

Ch 0 - bits 0 and 8; Ch 1 - bits 1 and 9; Ch 2 - bits 2 and 10; Ch 3 - bits 3 and 11

Ch 4 - bits 4 and 12; Ch 5 - bits 5 and 13; Ch 6 - bits 6 and 14; Ch 7 - bits 7 and 15

Field Descriptions

Analog Input Data

Specifies the value of the analog input data from the module. Specific
format is controlled by Module Data Format Control parameter.

Overrange Alarm

Alarm signal for input overrange. This signal is always active.

Range: 0 = normal, 1 = input overrange

Underrange Alarm

Alarm signal for input underrange. This signal is always active.

Range: 0 = normal, 1 = input underrange

Remote Fault Alarm Alarm from remote transmitter, indicating transmitter difficulties,

sensor difficulties, or loop to the sensor is open. If not using a remote
transmitter, this alarm can be used as a high-high or low-low alarm.
Depending on Data Format, these current values may be indicated by
percent, mA, or integer values.

Range: 0 = normal, 1 = fault detected

Local Fault Alarm

Alarm indicating the loop to the transmitter, or, if there is no transmitter,
the loop is open or shorted. When active, this alarm triggers at 2 mA
and 22 mA for open and short respectively. Depending on Data Format,
these current values may be indicated by percent, mA, or integer
values.

Range: 0 = normal, 1 = fault detected

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