Connections; Dynamic Variables; Fl500 Operating Mode Decimal Values - MSA FL500 UV/IR Operating Manual

4.

Connections

The HART protocol uses the 4 – 20 mA current loop.
Normal Special
Current Current
3.5 mA 1.5 mA
3.5 mA 2.0 mA
4.0 mA 4.0 mA
8.0 mA 8.0 mA
12.0 mA 12.0 mA
16.0 mA 16.0 mA
20.0 mA 20.0 mA
For information about terminal connections, refer to the FL500 UV/IR Flame Detector Operating Manual
(PN 10193213).
5.

Dynamic Variables

The only dynamic variable for the HART protocol is the primary variable. The output of the primary variable is
the FL500 Operating Mode. The primary variable is equivalent to Modbus register 0x00.
Refer to the following section for the decimal values related to the FL500 Operating Modes.
5.1.

FL500 Operating Mode Decimal Values

Mode
Initialization
Start-up
Normal (standby)
Fault
COPM check
IR-only fire
UV-only fire
Alarm Test
Alarm Low latching only
Alarm High latching only
Alarm Low non-latching only
Alarm High non-latching only
ATE test
ATEX test
Alarm Low and Alarm High latching
Description
Fault
COPM error
Normal (Ready)
IR-only fire detected
UV-only fire detected
Both UV/IR (Alarm Low)
Fire after time delay (Alarm High)
Decimal Value
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
FL500 HART® Communication Operating Manual
Connections
US
7