Fault (02H); Factory Use Only (03H); Model Type (04H); Software Revision (05H) - MSA FL500 Operating Manual

3.3.

Fault (02H)

A Read command sends back the errors that are occurring. The bit position identifies the error.
Byte Function Bit
Alarm High relay
Alarm Low relay
Fault relay
Output current
High
Alarm Test input/output
Not used
UV 10 minutes
Alarm Reset switch shorted
Internal voltage
Not used
IR COPM
UV COPM
Low
Low supply voltage
Noncritical EEPROM
EEPROM checksum
Flash checksum
3.4.

Factory Use Only (03H)

This parameter is for factory use only.
3.5.

Model Type (04H)

A Read command sends back the decimal value 3550 for the FL500 model number.
Model Configuration
FL500 Standard UV/IR
3.6.

Software Revision (05H)

A Read command sends back the numeric value of the software revision (such as 0, 1, 2) in use by the
FL500.
3.7.

Input Voltage (06H)

A Read command sends back the measured input voltage. If the measured voltage is less than the
necessary 20 volts, a Low Supply Voltage fault can occur. Refer to the FL500 UV/IR Flame Detector
Operating Manual (PN 10193213) for information about troubleshooting faults.
Operational Mode Command Register Details
Position
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
HART ID
0x93
FL500 Modbus Communication Operating Manual
Hex
0x0100
0x0200
0x0400
0x0800
0x1000
0x2000
0x4000
0x8000
0x0001
0x0002
0x0004
0x0008
0x0010
0x0020
0x0040
0x0080
Modbus ID
3550 0x0DE8
US
11