Thermo Scientific TDE Series Manual page 36

Function
S.No Parameter
code
Cold Alarm
Setpoint
3 0x03
(C)
System Bill
of Material
4 Part 0x03
Number
5 0x03
Product ID
Control
6 0x03
Model
Thermo Fisher Scientific ULT Freezers
Address in Modbus
Size
hexadecimal command
3a 31 39
30 33 30
35 33 43
30 30 30
53C 2
32 41 31
0d 0a
3a 31 39
30 33 30
570 10
35 37 30
30 30 30
41 36 35
0d 0a
3a 31 39
30 33 30
35 39 38
30 30 30
598 2
32 34 35
0d 0a
3a 31 39
30 33 30
35 39 43
30 30 30
59C 1
31 34 32
0d 0a
Relay
Data
Enclosure Data
Type
Response
3A 31 39
30 33 30
34 46 46 0xFF
46 46 46 FFFC
int
43 37 43 7C
36 36 0D
0A
3A 31 39
30 33 32
34 33 31
33 35 33
35 34 34
35 32 33
155D
30 34 31
R0A0
33 30 33
1R String
31 35 32
32 30 32
30 32 30
32 30 32
30 32 30
32 30 32
30 32 30
32 30 44
30 0D 0A
3A 31 39 0x00
30 33 30 01E2
34 30 30 40
unit
30 31 45
32 34 30
42 39 0D
0A
3A 31 39
30 33 30
32 30 34
44 45 0D 0x04
uchar
0A
Appendix B: Modbus ASCII Parameter Table |
Remarks
convert the data value into
signed 2's complement
and divide with 10, which
gives the setpoint.
EX: signed 2's comple-
ment of the 0xFFFFFC7 is
equal to -900.
-900/10=-90. So the CA
setpoint is -90C.
All the remaining are
spaces.
123456 would be
enclosed as 0x01E240.
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)
31