Modbus addresses
53
Subject to technical changes.
200114
BA-42820-02-V03
Water sampling station
EASYPRO
Operating instructions
Address
Read
Write
Description
Meaning
2026
x
Control output 2 Y2 (active control)
500 = 50,0 % (2 Byte signed int)
Second side if 2-side control is active.
x
x
Control output 2 Y2 (only manual mode)
2027 – 2028
x
x
Setpoint 1
Number of positions after the decimal point, see unit (4 bytes signed
int.).
2029 – 2030
x
x
Setpoint 2
If 2-side control is active (4 byte signed int).
2031
x
x
Xp
Number of positions after the decimal point, see unit (2 bytes unsigned
int.).
2032
x
x
D
Derivative time in s (2 byte unsigned int).
2033
x
x
I
Reset time in s (2 byte unsigned int).
2034
x
x
Minimum and maximum alarm
Write:
0 = clear alarm
Read:
Bit 0 = minimum alarm is active
Bit 1 = maximum alarm is active
2035
x
x
Y alarm
Write:
0 = clear alarm
Read:
Bit 0 = Y alarm is inactive
Bit 1 = Y alarm is active
2036
x
x
Manual mode
Bit 0: Manual mode on
Bit 1: Lower (with 2-side control)
Input-related data of the virtual inputs. 20 addresses will be held available for each of the 1 to 4 inputs. The address space for the virtual
inputs begins at 2100, 2120, 2140 and 2160.
2100
x
Calculation
0 = off, no calculation
1 = difference value measurement
2 = bound chlorine
3 = effective chlorine
2101 – 2102
x
Measurement
Number of positions after the decimal point, see unit (4 bytes signed
int.).
2103
x
Unit
Number
Unit
decimal places
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
mA
µA
ppm
mg/l
µS/cm
mS/cm
%
mV
pH
min
s
mV/pH
Pulses/min.
Travelling unit
Celsius
2
1
2
2
2
2
2
1
2
0
0
1
0
1
1
Tab. 44: Modbus addresses
