Modbus Communications 42
HP-327 HIT-4U
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 Fault
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 Spare 5
28 Spare 4
29 Spare 3
30 Spare 2
31 Spare 1
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