Rev. 3
2
INSTALLATION
2.1
Connecting the power supply
EGW1-MB-HT allows a power supply from +10 to 30 V
DC
. Positive power supply must be connected
to terminal N° 1 and negative power supply to terminal No. 2 as shown in the following figure:
2.2
Serial Port Wirings
EGW1-MB-HT has two serial ports; one of them is RS232 (Port A), used as a Modbus slave and as a
configuration port through the serial (Appendix A), and other one RS485 (Port B) used as Modbus
Slave.
2.2.1.
RS232 port wiring (Port A)
To connect the device RS232 serial port to PC serial port or any other serial device to set and
monitor, it must be connected as can be shown in the following figure. You should consider EGW1-
MB-HT is a DTE device, that means it must cross wire with those of the PC.
2.2.2.
RS485 port wiring (Port B)
To connect the device RS485 opto-isolated serial port to any serial device, it must be connected as
can be shown in the following figure. The operation of this port is independent of the RS232. An
isolated GND terminal is available in the terminal if an RS485 cable with mesh wire is used.
Summary of Contents for EGW1-MB-HT
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