Thermal Care NQA13 - Modbus RTU (Optional)

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Table 17 - SPI Parameters (continued)
Command
Poll
Select
Description
Status, Machine 1
20 42
This is the machine status in a 16 bit format as follows:
0 = Controlling
1 = An alarm is present
2 = An alarm affecting the process has occurred
(high temperature deviation or low temperature deviation)
3 = An alarm affecting the machine operation has occurred
(probe fault or pump fault)
4 = The controller has exceeded its over setpoint deviation
5 = The controller has exceeded its below setpoint deviation
Status, Machine 2
20 44
This is the machine status in a 16 bit format as follows:
0 = Controlling
1 = An alarm is present
2 = An alarm affecting the process has occurred
(high temperature deviation or low temperature deviation)
3 = A sensor error has been detected
4 = An alarm affecting the machine operation has occurred
Mode, Machine
20 48
20 40
This is the machine mode in two 8-bit bytes. When polling 20 48 bit 0
indicated the machine is off
20 40 bit 0 commands the unit to be turned on or off
(on when high or off when low)
20 40 bit 1 is used to recognized the alarm condition
Temperature, To
Process (Supply)
20 70
Returns the process supply temperature. This is a numeric format in °F.
Temperature, To
Process (Return)
20 72
Returns the process return temperature. This is a numeric format in °F.
Modbus RTU (Optional)
The Modbus RTU option provides a RS-485
communications port and a controller expansion
board to allow the unit to provide Modbus RTU
communications. Units ordered with this option will
have this feature activated at the factory. If for some
reason this feature is inactive it may be active using
the program menu Communication Type function.
See Table 15 for details. This option provides
communications as shown in Table 18 and Table 19.
Table 18 – ModBus RTU Option Parameters (Integer Values)
Reg
Description
Read/Write
Notes
4000
CONTROLLER BOARD TYPE
R
0x5432= F20, 0x5434 = F40
4001
SOFTWARE VERSION
R
100x version, e.g. 119 = ver 1.19
4002
MACHINE STATE
R
0 = Off, 1 = Stop, 2 = Run, 3 = Run Fault 2, 4 = Run Fault 3, 5 = Fault
1, 6 = Factory Menu, 7 = User Menu, 8 = Get User Password, 9 =
Master Reset
4003
INPUT TYPE 0
R
0 = RTD2, 1 = RTD3, 2 = RTD PWC, 4 = 0-1V, 5=TC
4004
INPUT TYPE 1
R
0 = RTD2, 1 = RTD3, 2 = RTD PWC, 4 = 0-1V, 5=TC
4005
INPUT TYPE 2
R
0 = RTD2, 1 = RTD3, 2 = RTD PWC, 4 = 0-1V, 5=TC
4006
INPUT TYPE 3
R
0 = RTD2, 1 = RTD3, 2 = RTD PWC, 4 = 0-1V, 5=TC
4007
DERIVATIVE
R/W
4008
INTEGRAL
R/W
4009
HEAT CYCLE RATE
R
4010
COOL CYCLE RATE
R