Modbus protocol – Hach-Lange SC 100 User Manual
Page 53
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