Hoffer Flow Controls HIT-4L User Manual page 51

Fault Codes
The following table defines each bit for the fault codes returned when
polling register 7022 and 7023 using function code 03. When a value
of 1 is returned for a bit, it indicates that the fault has occurred since
last power on (7022) or is currently active (7023).
Bit
0 Reset, brownout
1 Reset, reset pin
2 Reset, DoBOR
3 Reset, wakeup from LPM5
4 Reset, security violation
5 Reset, supply voltage supervisor low
6 Reset, supply voltage supervisor high
7 Reset, supply voltage monitor low
8 Reset, supply voltage monitor high
9 Reset, DoPOR
10 Reset, watchdog timer timeout
11 Reset, watchdog timer key violation
12 Reset, flash key violation
13 Reset, PLL unlock
14 Reset, peripheral/configuration area fetch
15 Reset, power management key violation
16 Low battery
17 Pulse output overflow
18 Alarm, rate low
19 Alarm, rate high
20 Alarm, total
21 Flash segment 1 invalid
22 Flash segment 2 invalid
23 Maximum input frequency exceeded
24 EEPROM read error on startup
25 Code execution error
26 Flow rate exceeds 20mA setting
27 Temperature Input Fail
28 Pressure Input Fail
29 Flash Segments Table Invalid
30 Spare 2
31 Spare 1
HIT-4L
Modbus Communications
Fault
45
HP-329