Modbus And Lon Bus; Analogue Input And Pwm; Table 4: Rs_485 Modbus Terminals - DAB EVOPLUS B 120/220.32 M Instrucciones Para La Instalación Y El Mantenimiento

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ENGLISH
If the EXT and Economy functions have been activated from the control
panel, the system will behave as follows:
IN1 IN2
Open Open
Open Closed
Closed Open
Closed Closed

8.2.2 MODBUS and LON Bus

EVOPLUS circulators provide serial communication through an input
RS-485. The communication is realised according to MODBUS specifi-
cations.
With MODBUS it is possible to set the circulator operating parameters in
remote mode such as, for example, the desired differential pressure, the
influence of temperature, the regulating mode, etc. At the same time the
circulator can provide important information on the system status.
For the electrical connections refer to Figure 6 and to Table 4:
MODBUS Terminals Terminal no.
A
B
Y

Table 4: RS_485 MODBUS terminals

The MODBUS communication configuration parameters are available in
the advanced menu see Par.12).
EVOPLUS circulators also have the possibility of communicating on LON
bus through external interface devices.
28
System Status
Pump stopped
Pump stopped
Pump running with set-point set by the user
Pump running with reduced set-point
Description
2 Terminal not inverted (+)
1 Terminal inverted (-)
3 GND
Further information and details on the MODBUS and LON bus interface
are available at the following link:
http://www.dabpumps.com/evoplus

8.2.3 Analogue Input and PWM

Figure 8: Pull-out 13-pole terminal board: 0-10V inputs and PWM
Figure 8 shows the wiring diagram of the external signals 0-10V and
PWM. As may be seen from the figure the 2 signals share the same ter-
minals on the terminal board, so they are mutually exclusive. If you want
to use an analogue control signal, you will have to set the type of signal
from the menu (see par. 12 Page 7.0).
Further information and details on the MODBUS and LON bus interface
are available for download at the following link:
http://www.dabpumps.com/evoplus