102
CT-600-2
15
Modbus TCP/IP signal list
See section 9.10 and 13.1 for Ethernet connection setup and parameters.
NOTICE
The tables in this section show the Modbus addresses as 16-bit words (%MW). When reading a double
word (%MD), the address must be divided by two. Example (see first line in section 15.3): “number of
enabled compressors” can be read in address %MD20016, which corresponds to %MW40032
- %MW40033.
15.1
List of alarms and addresses on Modbus TCP/IP
See table in section 14.1 for complete list of alarm and alarm numbers.
Address
Bit
Alarm No.
Alarm signal
%MW40000
%MW40000:X0
0
Not used
%MW40000:X1
1
Suction pressure low
%MW40000:X2
2
Suction pressure high
%MW40000:X3
3
Discharge pressure low
%MW40000:X4
4
Discharge pressure high
%MW40000:X5
5
Pressure ratio high
%MW40000:X6
6
Pressure difference low
%MW40000:X7
7
Lubricating pressure low
%MW40000:X8
8
Oil system pressure drop high
%MW40000:X9
9
Main oil filter pressure drop high
%MW40000:X10
10
Suction superheat low
%MW40000:X11
11
Suction superheat high
%MW40000:X12
12
Suction pressure sensor difference high
%MW40000:X13
13
Suction pressure sensor error
%MW40000:X14
14
Discharge pressure sensor difference high
%MW40000:X15
15
Oil temperature low
%MW40001
%MW40001:X0
16
Oil temperature high
...
...
...
%MW40001:X15
31
External input external alarm
%MW40002
%MW40002:X0
32
Not used
...
...
...
!
!
