Serial interfaces
87
IRDH575_D00089_05_M_XXEN/01.2020
The following operating manuals are available when using the IRDH575 in
combination with EDS systems for other applications:
Manual for EDS470 application:
power supply systems, extended systems, systems with frequency con-
verters, response sensitivity of at least 5 mA
Manual for EDS473 application:
control systems, small systems, systems with PLC, response sensitivity
at least 0.5 mA
Manual about project planning for EDS470 and EDS473 systems
Manual for EDS460 /EDS490, Application:
power supply systems, extended systems, systems with frequency con-
verters, response sensitivity of at least 2 mA
for EDS461 /EDS491, Application:
control systems, small systems, systems with PLC, response sensitivity
at least 0.2 mA
7.3.5 Commissioning of an RS-485 network with BMS protocol
Connect the terminals A and B of all bus nodes in one line
Switch the terminating resistors on at the beginning and end of the
RS-485 network or in case of devices without a terminating switch, at
the end of the bus, connect a 120 Ω resistor to the terminals A and B.
Switch the supply voltage U
S
on.
Determine one IRDH575 as the Master and assign address 1.
Assign the addresses (2…150) successively without gaps to all other
IRDH575 devices and other bus nodes (see table below).
Check whether a flashing point appears on all devices with a display
(BMS commands are being received). Other devices use an RS-485 LED
to signal the bus traffic.
The sub menu "ISO-Monitor" in the COM SETUP menu allows insulation
values of the ISOMETER®s to be queried. Before starting the query, the
address of the ISOMETER® has to be entered.
In the "EDS Test“ menu all preset Slave addresses can be checked
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