8
3.5 Connection via RS485 serial port for BMS or control console and Multiconnect with
500 kW module
For connection to a CMS, refer to document 3991049.
Identification of Modbus connection terminals
1
→A or +
2
→B or –
3
→Earth (shield)
Detail B
End of line
resistance switch
The switch is set to the right by default.
On the last machine in the loop, it must
be set to the left.
Detail A
End of line
resistance switch
Position of switch
when only one
option is connected to the RS-485
output on the main board
Position of switch when several options
are connected to the RS-485 output on
the main board
RS-485 PLC
BMS
2-wire RS-485
Max. length:
1000 m
Main relay
board
Additional
relay board 1
See detail A
Optional
Installed on unit
Shield
To
additional
board
C
ONNECT
2 main board
Unit 2
Local console
See detail B
Shield
Shield
Installed on unit
Shield
To
additional
board
C
ONNECT
2
main board
Unit 1
Local console
See detail B
Remote control console
Shield
Optional
M
ULTI
C
ONNECT
main board
Shield
RS-485 link to BMS
(Modbus protocol)
A
EROCONNECT
board
UNIT
Local console
Содержание Magister 2 Series
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