Hydronix Hydro-Control VI Installation Manual page 81

Chapter 6
Reading and writing system parameters
3.4
The system values of each recipe can be set at any time.
To read parameters the following format should be used:
• #_R_nn_pp
"_" denotes a space, do not use the underscore character in the RS232 string, "nn" will always
be 0 and "pp" denotes the parameter to read.
To Write a system parameter the following format should be used:
• #_W_nn_pp_vv
"_" denotes a space, do not use the underscore character in the RS232 string, "nn" will always
be 0, "pp" denotes the parameter to change and "vv" is the value to set it to.
Below is a list of parameters and their respective units. Certain commands have been changed
or are no longer used. These are shown for backwards compatibility.
Parameter Description
101 Water mode
(0=metered,2=timed,3=weighed)
102 Meter Flow (opposite to HC05)
103 Meter Timeout
105 Language (0 = English others to be
defined)
129 Fine Delivery
130 In-flight
131 Averaging Time
132 Coarse In-flight
139 Cycle Loops
147 Water valve on time
148 Water valve off time
149 Use Fine Valve Only (1 = true, 0 =
false)
151 System Proportional Gain
Units
N/A
Pulses per litre
Seconds
N/A
Seconds, weight, Litres
or US Gallons
Seconds, weight, Litres
or US Gallons
Seconds
Seconds, weight, Litres
or US Gallons
None
Seconds
Seconds
N/A
None
Hydro-Control VI Installation Guide HD0455 Rev 1.9.0
RS232 Interface
RS232 Actual
Value Value
N/A N/A
200 0.2
10 10
N/A N/A
20 20
10 1.0
150 15.0
10 1.0
2 2
100 1
100 1
N/A N/A
100 1.0
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