S&P CTB ECOWATT, Installation Manual. Instructions For Use

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ENGLISH
57
MODBUS message
Direction Function Dates CRC verifi cation
8 bits 8 bits N x 8bits 16 bits
Format for each byte in RTU mode is:
• System codes: 8–bit binary
• Bits per Byte: 1 bit to START (start)
8 bits for data, the most signifi cant bit is sent fi rst
1 bit for parity (Even parity is required)
1 bit for STOP (end)
8.2. MODBUS MEMORY MAP
Holding registers
N°REG. Register Min. Max. Description Default Comments
0 TipoMotor 0 1
0=AC
1=DC
1 Motor type
1 ModoFun 0 7
0=PI_Presión
1=PI_Caudal
2=Proporcional
3=Max-Min
4=PI_Presión+RTC
5=PIRTC
6=PropoRTC
7=Max-Min+RTC
0 Operation mode
2 SensorPI 0 4
0=Interno
1=IN1 0-10V
2=IN1 4-20mA
3=IN2 0-10V
4=IN2 4-20mA
0
Sensor type in PI
PRESSURE or PI VOLUME
mode
3 Sensor1 0 7
0=NO
1=0-10V %HR
2=4-20mA %HR
3=0-10V °C
4=4-20mA °C
5=0-10V CO2
6=4-20mA CO2
7=NTC 100K
0
Sensor type in
PROPORTIONAL mode
and analog input signal 1
4 Sensor2 0 6
0=NO
1=0-10V %HR
2=4-20mA %HR
3=0-10V °C
4=4-20mA °C
5=0-10V CO2
6=4-20mA CO2
0
Sensor type in
PROPORTIONAL mode
and analog input signal 2
5 PIRange
50
50
100
1250
2500
9900 SensorPI=0
SensorPI<>0
Sensor<>0
400Pa
Range sensor in PI
PRESSURE mode
6 SetPoint 0 5
0=Interno
1=IN1 0-10V
2=IN1 4-20mA
3=IN2 0-10V
4=IN2 4-20mA
5=ConsolaMODBUS
(PROSYS ECOWATT)
5
Set point in PI PRESSURE
mode
7 Kp 1 250 Increases 1 20
Proportional constant in PI
PRESSURE mode
8 Ki 1 250 Increases 1 20
Integral constant in PI
PRESSURE mode