installation &
operating instructions
Design Envelope 4200h & 4280
End Suction Horizontal Pumping Units
20
3.1 modbus ip & rtu
function code
start
address
modbus
register
description
# of
registers
change
during
operation
data
type
unit notesread write
0×01 0×03 0×05 0×06
Status
x 100 101 Actual speed 1 n/a uint16 1 rpm
The current speed of the vfd in
rpm.
x 101 102 Actual speed 1 n/a uint16 0.1 %
The current speed of the vfd in %
of the nominal motor speed.
x 102 103
Motor input
power
2 n/a uint32 0.01
Units as configured on pump
control module.
x 104 105
Motor input
voltage
1 n/a uint16 0.1 V
Voltage delivered by the vsd to
the motor.
x 105 106
Motor input
current
2 n/a uint32 0.01 A
Current delivered by the vsd to
the motor.
x 107 108
Sensorless
head
2 n/a uint32 0.01
Units as configured on pump
control module.
x 109 110 Sensorless flow 2 n/a uint32 0.01
Units as configured on pump
control module.
x 111 112 Total flow 2 n/a uint32 0.01 Used for parallel sensorless mode
x 113 114 Total power 2 n/a uint32 0.01 Used for parallel sensorless mode
x 115 116
Number of
running pumps
1 n/a uint16 — Used for parallel sensorless mode
x 116 117
Max sensorless
flow
2 n/a uint32 0.01
Units as configured on pump
control module.
x 118 119
Max sensorless
head
2 n/a uint32 0.01
Units as configured on pump
control module.
x 120 121 btu/h 2 n/a uint32 — Not implemented
i/o
x 200 201 Digital in 1 n/a uint16 —
Digital input 1 is bit 0 and input 2
is bit 1.
x 201 202 Analog in 1 2 n/a uint32
0.01 V,
0.01 mA
Units as configured on Pump Con-
trol Module
x 203 204 Analog in 2 2 n/a uint32
0.01 V,
0.01 mA
Units as configured on Pump Con-
trol Module
x 205 206 Analog Out 1 1 n/a uint16 0.01 mA
x 206 207 Digital Out 1 n/a uint16 —
Digital output 1 is bit 0 and output
2 is bit 1.
x 207 208 Relays 1 n/a uint16 — Relay 1 is bit 0 and relay 2 is bit 1.
Units
x 250 251 Flow units 1 n/a uint16 —
1 = l/s; 2 = m
3
/h;
3 = g/m
x 251 252 Pressure units 1 n/a uint16 —
1 = bar; 2 = kPa;
3 = psi; 4 = ft; 5 = m
x 252 253 Power units 1 n/a uint16 — 1 = kW; 2 = hp
x 253 254 Speed units 1 n/a uint16 — 1 = rpm; 2 = %
x 254 255
Temperature
units
1 n/a uint16 — 1 = °c; 2 = °f
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