40
RS485
TERMINAL RESISTOR
The device is supplied with embedded terminal resistor for RS485 bus (R
t
=120
Ω). In order to insert the
resistor take action on the DIP-switch no. 6 as shown in the following table:
Rt (120Ω)
DIP 6
INSERTED
ON
NOT INSERTED
[DEFAULT]
OFF
S
OFTWARE CONFIGURATION
The MultiSetup.exe program supplied on the CD-Rom can be used to:
select the protocol used by the UPS;
configure the communication parameters of the three serial ports;
select the type of input, set the minimum and maximum threshold values and the delay;
associate the UPS events and/or inputs with the outputs;
change the logic of operation of the relays associated to the outputs.
In order to use the program, the SERIAL 1 or SERIAL 3 port must be connected to a serial port on the
PC using the supplied serial cable (see also
“SERIAL 1 / SERIAL 3 Communication Port”). To confirm
the chosen configuration, the accessory must be switched off and then on again or reset by pressing the
Reset button.
Multi I/O
is able to automatically recognize the communication protocol used by the UPS.
To do this, it is necessary to leave the baud rate of the UPS to the default value (1200 or
9600 bps according to the type of UPS).
If the baud rate of the UPS is set to different values, the serial port
“UPS SERIAL” of Multi
I/O has to be properly configured using the software MultiSetup.exe.