Thermo Scientific TSX Series Installation And Operation Manual page 70

Function
S.No Parameter
Code
Control
6 0x03
Model
7 Size 0x03
8 TC1 0x03
Ultra Low Temperature Freezers
Address in Modbus
Size
hexadecimal Command
3a 31 39
30 33 30
35 39 43
59C 1
30 30 30
31 34 32
0d 0a
3a 31 39
30 33 30
35 39 44
59D 1
30 30 30
31 34 31
0d 0a
3a 31 39
30 33 30
34 43 38
4C8 2
30 30 30
32 31 36
0d 0a
Relay
Data
Enclosure Data
Type
Response
3A 31 39
30 33 30
0x0
32 30 34 uchar
4
44 45 0D
0A
3A 31 39
30 33 30
0x0
32 30 32 uchar
2
45 30 0D
0A
3A 31 39
30 33 30
0x4
34 34 31
1B8
42 34 33 Float
319
31 39 31
1
32 31 0D
0A
Appendix D: Modbus ASCII Parameter Table |
Remarks
Note: bits b4:b1
0000: PEEK Production
Code (CNTRL 0)
0002: Variable Speed
Compressor (CNTRL 2)
0003: Single Speed and
Cascade System 
(CNTRL 3)
0004: Single Speed and
Single Stage System
(CNTRL 4)
0005: Single Speed and
Cascade System 
(CNTRL 5)
5 units sizes
0 - 300,
1-400,
2-500,
3-600,
4-700
Convert the Float to
decimal with below steps:
1.Open the link 
https://www.h-
schmidt.net/
FloatConverter/
IEEE754.html
2.Paste the data in
"Hexadecimal
Representation" and press
Enter.
3.The temp value is shown
in "Decimal
representation"
65