Thermo Scientific TDE Series Manual page 40

S.No Parameter
Display
18
Managed
RTD
Temperature
19 Alarms
Thermo Fisher Scientific ULT Freezers
Function Address in
Size
Code hexadecimal
0x03 500 2
0x03 514 2
Relay
Modbus Enclosure Data
Response
3A 31 39
3a 31 39 30 33 30
30 33 30 34 46 46
35 30 30 46 46 46 0xFF
FFFB
30 30 30 46 42 33
32 44 44 32 43
2
0D 0A
0d 0a
3A 31 39
3a 31 39 30 33 30
30 33 30 34 30 30 0x00
0004
35 31 34 30 30 30
30 30 30 34 30 32
02
32 43 39 44 36
0D 0A
0d 0a
Appendix B: Modbus ASCII Parameter Table |
Data
Remarks
Type
Convert the data value into
signed 2's complement
which gives the data.
Ex: Signed 2's complement
of the 0xFFFFFB2 is equal
int
to –78.
So the Display Managed
RTD Temperature value is
–78°C.
1 = Active / 0 = Inactive
b19 BUS Battery
Disconnection,
b18 System Battery
Disconnection,
b17 Water temperature,
b16 Wrong Power,
b15 Refrigeration System
Failure (TSX only),
b14 Reserved for factory
use only (Water Cooled
pressure alarm if
applicable),
b13 Unused,
unit
b12 Clean filter Alarm,
b11 Reserved for factory
use only,
b10 Buck boost ineffective,
b9 BUS battery low,
b8 Setpoint attain timed out
(every cycle),
b7 Health of compressor
(sump temp),
b6 - Extreme Ambient,
b5 - System Battery Low,
b4 - Control Probe Fail,
b3 - Door Open,
b2 - Cold Alarm,
b0 - Power Failure Alarm
35