Thermo Scientific TSX Series Installation And Operation Manual page 69

Function
S.No Parameter
Code
Cold Alarm
3 Setpoint 0x03
(C)
System Bill
of Material
4 0x03
Part
Number
5 Product ID 0x03
64 | Appendix D: Modbus ASCII Parameter Table
Address in Modbus
Size
hexadecimal Command
3a 31 39
30 33 30
35 33 43
53C 2
30 30 30
32 41 31
0d 0a
3a 31 39
30 33 30
35 37 30
570 2
30 30 30
41 36 35
0d 0a
3a 31 39
30 33 30
35 39 38
598 2
30 30 30
32 34 35
0d 0a
Relay
Data
Enclosure Data
Type
Response
3A 31 39
30 33 30
0xF
34 46 46
FFF
46 46 46 int
FC7
43 37 43
C
36 36 0D
0A
3A 31 39
30 33 32
34 33 31
33 35 33
35 34 34
35 32 33
30 34 31
155
33 30 33
DR0
31 35 32 string
A01
32 30 32
R
30 32 30
32 30 32
30 32 30
32 30 32
30 32 30
32 30 44
30 0D 0A
3A 31 39
30 33 30
0x0
34 30 30
001
30 31 45 uint
E24
32 34 30
0
42 39 0D
0A
Ultra Low Temperature Freezers
Remarks
Convert the data value into
signed 2's complement
and divide with 10, which
gives the setpoint.
Ex: Signed 2's
complement of the
0xFFFFFC7C is equal to 
-900.
-900/10=-90. So the CA
setpoint is -90C.
All the remaining are
spaces.
123456 would be encoded
as 0x01E240.