Thermo Scientific TSX Series User Manual

Ultra Low Temperature Freezers Appendix D: Modbus ASCII Parameter Table | 63
Appendix D: Modbus ASCII
Parameter Table
Protocol MODBUS ASCII
Baud Rate 2400bps to 57.6Kbps
Data Bits 7
Stop Bits 1
Parity Even
Flow Control None
Address 0 to 255
S.No Parameter
Function
Code
Address in
hexadecimal
Size
Modbus
Command
Relay
Enclosure
Response
Data
Data
Type
Remarks
1
Cabinet
Setpoint
(C)
0x03 530 2
3a 31 39
30 33 30
35 33 30
30 30 30
32 41 44
0d 0a
3A 31 39
30 33 30
34 46 46
46 46 46
43 45 30
30 32 0D
0A
0xF
FFF
FCE
0
int
Convert the data value into
signed 2's complement
and divide with 10, which
gives the setpoint.
Ex: Signed 2's
complement of the
0xFFFFFCE0 is equal to 
-800.
-800/10= -80.
So the setpoint is -80C.
2
Warm
Alarm
Setpoint
(C)
0x03 538 2
3a 31 39
30 33 30
35 33 38
30 30 30
32 41 35
0d 0a
3A 31 39
30 33 30
34 46 46
46 46 46
44 34 34
39 44 0D
0A
0xF
FFF
FD4
4
int
Convert the data value into
signed 2's complement
and divide with 10, which
gives the setpoint.
Ex: Signed 2's
complement of the
0xFFFFFD44 is equal to 
-700.
-700/10= -70.
So the WA setpoint is 
-70 C.

Thermo Scientific TSX Series Specifications

General

Type	Laboratory Refrigerator
Cooling Type	Forced air cooling
Defrost Type	Automatic
Door Type	Solid or glass door options
Controller Type	Microprocessor
Certifications/Compliance	UL, CE
Energy Consumption	Varies by model; refer to product specification sheet
Voltage	115V
Exterior Dimensions (H x W x D)	Varies by model; refer to product specification sheet
Interior Dimensions (H x W x D)	Varies by model; refer to product specification sheet
Weight	Varies by model; refer to product specification sheet
Shelves	Adjustable shelves
Energy Efficiency	Energy Star certified models available