Name
Addr. R/W Default
Mult.
Units Description
Setting Range
0
32767
*
*
0
*
0.000
*
0.000
*
0
32767
0.00
1.00
0.00
2.50
0.00
5.00
0.00
10.00
0
100
0.00
20.00
0.00
20.00
0.00
330.00
0.00
330.00
0.00
100.00
0
24
0
1
*
*
*
*
*
*
1.000
12.000
1000
Ratio of Cl2:NH3-N
1000
1000
Motor Current Limit
ppm
R/W 240
15
100
Alert when external sensor signal is below setting. Limits set locally at HMI with MIN
and MAX limit settings when configuring sensor.
Daily Volume Limit
Chlorine
Amps
Amps
Gals
87
Unaccounted
Change Limit
Unaccounted
Change Clear
Daily Volume Limit
Ammonia
84
88
R/W 15
100
Alert when external sensor signal is below setting. Limits set locally at HMI with MIN
and MAX limit settings when configuring sensor.
Low Level Alert
Ammonia
89
R/W 15
100
Alert when external sensor signal is below setting. Limits set locally at HMI with MIN
and MAX limit settings when configuring sensor.
Low Level Alert
Chlorine
Low Level Alert
Monitored Tank
90
R/W
Flow Rate
GPH
Feed Ratio
Ratio Factor
70
Descrease
Threshold
Breakpoint
Threshold
Recovery Attempt
Limit
Recovery
Threshold
Sample Current
Setpoint
Mixer Current
Setpoint
76
77
80
Determination Wait
Time
82
75
81
Confirmation Wait
Determination
Hysteresis
71
72
Over/Undercurrent Limit for Sample Pump and Mixer
Flow rate of the set/commanded chemical.
Ratio of Free Chlorine to Total Chlorine. When this limit is exceeded, the system
considers a Breakpoint Location detected (for Automated Management decisions)
When chlorine residual drops below this point, system will take action (for Automated
Management decisions). Setting must be less than Residual Setpoint.
10.00
0
R/W
R/W
R/W
R/W
R/W
R/W 10
12.000
12.000
R/W 12.000
1000
Gals
Once this limit is reached, the system will no longer allow itself to feed until the next
day.
%
0.500
Amount of time after system has stopped chemical feed before making trend or
threshold determination (for Automated Management decisions)
100
1
Bulk storage monitor. Resets the memory buffer in the event of tank fill, drain, etc.
Buffer is also cleared with Memory Reset.
Bulk storage monitor. If the storage sensor reports an unaccounted change (no dosing)
in the set period the system will report an error.
Once this limit is reached, the system will no longer allow itself to feed until the next
day.
Submerisble Mixer motor typical operating current
Sample Pump motor typical operating current
1
1000
1000
1
1000
1000
1
Mins
ppm
%
R/W
73
74
3
Unaccounted
Change Timeout
86
R/W 15
83
85
100
Hrs
Bulk storage monitor. If the storage sensor reports a change greater than the limit
during this time period, the system will error.
79
R/W 1.630
1000
Ratio of ( Wt. NaClO (lbs/G) * % Avail. Cl2):(Wt. LAS (lbs/G) * % Avail. N)
78
R/W 4.200
1000
0.500
0.150
Number of attempts Automated Management will make to recognize a residual increase
When chlorine residual increases above this point, system will consider setpoint
reached (for Automated Management decisions). Setting must be less than Decrease
Threshold.
R/W
R/W
R/W
R/W
R/W 45
5
R/W
1
Mins
1
Mins
Number of minutes system waits before checking if threshold crossing was false
positive. Setting must be greater than the Trending Data Register Period, and less than
Confirmation Wait.
Number of minutes a threshold crossing must hold before determination is considered
complete. Setting must be less than Determination Wait Time.
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Registers
Modbus Registers
Defaults, Values and Descriptions
10319_20220119
ControlManual_ResidualHQ_10380_20220809a - 25
