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Modbus protocol – Hach-Lange SC 100 User Manual

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46

Modbus Protocol

Setup/Analog Output
1/Linear

Max Setting

40016

Float

2

R/W

Sets the max output value

Setup/Analog Output
1/PID

PID Mode

40018

Unsigned

Integer

1

R/W

Sets the PID mode (0 = auto; 1 = manual)

Setup/Analog Output
1/PID

PID Manual
Set

40019

Float

2

R/W

Sets the PID manual output value
(0.0 to 100.0%)

Setup/Analog Output
1/PID

PID Setpoint

40021

Float

2

R/W

Sets the PID setpoint

Setup/Analog Output
1/PID

PID Phase

40023

Unsigned

Integer

1

R/W

Sets the PID phase (0 = Direct;
1 = Reverse)

Setup/Analog Output
1/PID

PID
Proportional
Band

40024

Float

2

R/W

Sets the PID proportional band

Setup/Analog Output
1/PID

PID Integral
Time

40026

Unsigned

Integer

1

R/W

Sets the PID integral time (min)

Setup/Analog Output
1/PID

PID
Derivative
Time

40027

Unsigned

Integer

1

R/W

Sets the PID derivative time (min)

Setup/Analog Output 2

Source

40028

Unsigned

Integer

1

R/W

Selects data source for this output
(0 = None; 2 = Sensor; 4 = Calculation)

Setup/Analog Output 2

Sensor Select

40029

Unsigned

Integer

1

R/W

Selects sensor source when Source =
Sensor (0 = Sensor1; 1 = Sensor2)

Setup/Analog Output 2

Measurement
Select

40030

Unsigned

Integer

1

R/W

Selects measurement on the Sensor
(0 = Meas1 .. 3 = Meas4)

Setup/Analog Output 2

Type

40031

Unsigned

Integer

1

R/W

Selects output type (0 = Linear output;
1 = PID control)

Setup/Analog Output 2

Transfer Value

40032

Float

2

R/W

Sets the transfer value

Setup/Analog Output 2

Filter

40034

Unsigned

Integer

1

R/W

Sets the output filter value in seconds
(0 to 120 sec)

Setup/Analog Output 2

0mA - 4mA
Select

40035

Unsigned

Integer

1

R/W

Selects 0mA/4mA for min output
(0 = 0mA; 1 = 4mA)

Setup/Analog Output
2/Linear

Min Setting

40036

Float

2

R/W

Sets the min output value

Setup/Analog Output
2/Linear

Max Setting

40038

Float

2

R/W

Sets the max output value

Setup/Analog Output
2/PID

Mode

40040

Unsigned

Integer

1

R/W

Sets the PID mode (0 = auto; 1 = manual)

Setup/Analog Output
2/PID

Manual Set

40041

Float

2

R/W

Sets the PID manual output value
(0.0 to 100.0%)

Setup/Analog Output
2/PID

Setpoint

40043

Float

2

R/W

Sets the PID setpoint

Setup/Analog Output
2/PID

Phase

40045

Unsigned

Integer

1

R/W

Sets the PID phase
(0 = Direct; 1 = Reverse)

Setup/Analog Output
2/PID

Proportional
Band

40046

Float

2

R/W

Sets the PID proportional band

Setup/Analog Output
2/PID

Integral Time

40048

Unsigned

Integer

1

R/W

Sets the PID integral time (min)

Setup/Analog Output
2/PID

Derivative
Time

40049

Unsigned

Integer

1

R/W

Sets the PID derivative time (min)

Table 9: sc100 Modbus Registers (continued)

Group Name

Tag Name

Register # Data Type

Length

R/W

Description