Modbus protocol – Hach-Lange SC 100 User Manual

Page 53

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Modbus Protocol

49

Setup/Relay 2/Control

Reset
Overfeed
Timer

40113

Unsigned

Integer

1

R/W

Resets the overfeed timer

Setup/Relay 2/Event

Setpoint

40114

Float

2

R/W

Sets the event setpoint

Setup/Relay 2/Event

Phase

40116

Unsigned

Integer

1

R/W

Sets the event phase (0 = Low; 1 = High)

Setup/Relay 2/Event

Deadband

40117

Float

2

R/W

Sets the event deadband

Setup/Relay 2/Event

On Max Time

40119

Unsigned

Integer

1

R/W

Sets the max on time (mins)

Setup/Relay 2/Event

On Min Time

40120

Unsigned

Integer

1

R/W

Sets the min on time (mins)

Setup/Relay 2/Event

Off Max Time

40121

Unsigned

Integer

1

R/W

Sets the max off time (mins)

Setup/Relay 2/Event

Off Min Time

40122

Unsigned

Integer

1

R/W

Sets the min off time (mins)

Setup/Relay 2/Timer

Hold Type

40123

Unsigned

Integer

1

R/W

Sets which Sensor outputs are affected
during timer on time (0 = None;
2 = Selected Sensor; 13 = All Sensors)

Setup/Relay 2/Timer

Sensor Select

40124

Unsigned

Integer

1

R/W

Selects which Sensor outputs are being
held/transferred during the timers on time
(this is used when Hold type is set for
single Sensor)

Setup/Relay 2/Timer

Hold Mode

40125

Unsigned

Integer

1

R/W

Selects hold outputs vs. set transfer value
during timers on time

Setup/Relay 2/Timer

Duration Time

40126

Unsigned

Integer

1

R/W

Sets the timer on duration time (sec)

Setup/Relay 2/Timer

Period Time

40127

Unsigned

Integer

1

R/W

Sets the period between timer on events
(mins)

Setup/Relay 2/Timer

Off Delay

40128

Unsigned

Integer

1

R/W

Sets the time the affected Sensor outputs
are held/transferred after the timer turns
off (sec)

Setup/Relay 2/Status

Level

40129

Unsigned

Integer

1

R/W

Sets the status level which will trigger the
relay

Setup/Relay 3

Source

40130

Unsigned

Integer

1

R/W

Selects data source for this relay
(0 = None; 1 = Real Time Clock;
2 = Sensor; 4 = Calculation)

Setup/Relay 3

Sensor Select

40131

Unsigned

Integer

1

R/W

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

Setup/Relay 3

Measurement
Select

40132

Unsigned

Integer

1

R/W

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

Setup/Relay 3

Type

40133

Unsigned

Integer

1

R/W

Selects the relay type (0 = Alarm; 1 =
Control; 2 = Status; 3 = Timer; 4 = Event)

Setup/Relay 3

Transfer
Setting

40134

Unsigned

Integer

1

R/W

Selects the transfer value for the relays
(0 = De-energized; 1 = Energized)

Setup/Relay 3/Alarm

High Alarm

40135

Float

2

R/W

Sets the high alarm setpoint

Setup/Relay 3/Alarm

Low Alarm

40137

Float

2

R/W

Sets the low alarm setpoint

Setup/Relay 3/Alarm

High
Deadband

40139

Float

2

R/W

Sets the high alarm deadband

Setup/Relay 3/Alarm

Low
Deadband

40141

Float

2

R/W

Sets the low alarm deadband

Table 9: sc100 Modbus Registers (continued)

Group Name

Tag Name

Register # Data Type

Length

R/W

Description

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