Rockwell Automation 937CU-AIHLP-DC1 HART Loop Converter Installation Instructions - Manual (Page 46)

Bul. 937C HART Loop Converter Installation Instructions
In normal operation, the display shows:

the current values of the HART variables PV, SV, TV, QV in the selected unit

the present current output values for the three current outputs in mA

the current device status
This display shows information about the device status of the field device (1 byte) and
about the response code (1 byte) of the field device. These two bytes are displayed in
the first line of the display in hexadecimal form with the code RC on the left side.

the current setting of the type of communication
•
The isolated barrier reestablishes the HART circuit. The isolated barrier
performs the field device query using the HART command 3.
• LOOP Poll
The isolated barrier performs the field device query using the HART command 3.
•
The isolated barrier receives the HART command 3 of the field device.
• LOOP Mixed
The isolated barrier performs the field device query using the HART command
3 (polling). The field device is in burst mode, however it references a different
HART command than 3.
In the event of a fault, the display shows:

Err Device Fault
Displays a device fault in the isolated barrier – red LED lights up.

Err Communication
Displays a communication fault – red LED flashes.

Err Field Device Malfunction
Displays a field device failure – red LED
flashes.
Display Indicators
44
LOOP Locate
LOOP Burst