Bitzer Group Lodam LMC341 DIWE, Manual

Page: 13 / 20

Modbus Interface manual LMC341 DIWE
Page 13
7.4. Alarms
Alarm section with up to 16 alarms at a time. The alarms
are sorted with highest priority in Code1 parameter. When
an alarm becomes inactive the priority is less and it is
moved to a new parameter CodeNo > Code1.
An alarm number is coded, meaning status, severity level
and alarm number are encoded in the number in the
parameters Code1 – Code16.
Leftmost bit = Bit16; rightmost bit = Bit0.
Bit1 – Bit10:
Alarm number; 100 – 999. Code1 AND 1023
dec
=
alarm number.
Bit11 – Bit13:
Alarm level; 0 – 6 as listed for Level in the table
below.
Code1 AND 7168
dec
= level.
Bit16:
Alarm status; 1: Alarm active; 0: Alarm inactive.
Code1 AND 32768
dec
= status.
Name
Possible
Values
Default Description
Register
type
Address
RE7 Unit Boolean
Scale 1
uint8
- Fan 1
(Output.RE7)
0: Off
1: On
Input register 1590
RE8 Unit Boolean
Scale 1
uint8
- Fan 2
(Output.RE8)
0: Off
1: On
Input register 1591
RE9 Unit Boolean
Scale 1
uint8
- Compressor running for ΔpII
(Output.RE9)
0: Off
1: On
Input register 1592
Name
Possible
Values
Default Description
Register
type
Address
Count Unit None
Scale 1
uint16
0 Number of alarms in the list, active and inactive
(Alarm.Count)
0 - 16 alarms
Input register 1600
CountActive 0 Number of active alarms
(Alarm.CountActive)
0 – 16
Input register 1601
Level Unit None
Scale 1
uint16
0 Highest alarm level of the active alarms
(Alarm.Level)
0: None
1: Log
2: Event
3: Info
4: Warning
5: Critical
6: Fault
Input register 1602
Alarm Reset Unit None
Scale 1
uint16
- Alarm reset command variable
(Alarm.Reset)
Range 0 – 65535
100 – 999: Resets the specific alarm – if the alarm is
resettable
65535: Reset all resettable alarms
Holding register 1603