Commissioning Of An Rs-485 Network With Bms Protocol - Bender ISOMETER IRDH575 Manual

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
 
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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on.
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IRDH575_D00089_05_M_XXEN/01.2020
Serial interfaces