Thermo Scientific thermoflex, Quick Start Manuals

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Thermo Scientific
Appendix C
ThermoFlex C-3
Thermo Scientific
Analog Values
*Qualifier Byte
b.7
b.6
b.5
b.4
b.3
b.2
b.1
b.0
98
byte of 0x12 is 98.6°F.
Example to set setpoint to 25°C:
If the temperature units are unknown, before changing the setpoint send a command to request setpoint. The
units are already known skip to step 3.
1. Master sends: CA 00 01 70 00 8E (REQ SETPOINT1)
2. Slave responds: CA 00 01 70 03 11 00 C8 B2 (0.1°C x 200)
Response indicates:
uses a 2 byte integer (nn=03)
precision and units are 0.1°C (d1=11)
3. Master sends: CA 00 01 F0 02 00 FA 12 (Set Setpoint 1 to 25.0°C)
4. Slave responds: CA 00 01 F0 03 11 00 FA 00 (0.1°C x 250)
See Additional Command Examples in this Appendix.
Set Commands
– When a Set Command is received and the value is within the allowable limits, the new value
will take affect immediately and the new value will be returned as part of the response to the command. If the
value is outside of the allowable limits, the value will be rejected and the old value will be returned as part of the
response to the command.
Error Response F0
- The "Bad Data" and "Bad Checksum" error responses will not be used. Reject out of
range values and return old settings. Do not reply to message frames with bad checksums. This behavior is
compatible with existing implementations of the protocol.
Unit of Measure
Index Unit
0 NONE
1 Temperature in °C
2 Temperature in °F
3 Flow liters per minute
4 Flow in gallons per minute
5 Time in seconds
6 Pressure in PSI
7 Pressure in bars
8 Resistivity in M Ω -cm
9 %
10 Volts
11 Pressure in K Pascals
12 Conductivity in
Precision of measurement
Unit of measure index