V1.00
multisys D2-MSMT
20742_EDEBDA0231-2516-1_EN
9
Interface Modbus RTU serial RS-485
2.1 Interface Modbus RTU serial RS-485
If necessary, the RS-485 interface can be terminated using four DIP switches.
1 2 3 4
ON
SAB
LAN Netz
RS-485:
RS-485 for the Modbus unit
(3-pole multi-pin connector, 3.5 mm)
Terminal no. 90 = Ground, 91 = A, 92 = B
(in accordance with KBR nomenclature)
DIP switch for terminating RS-485:
DIP1 and DIP2 ON, DIP3 OFF = failsafe activated
DIP1 and DIP2 OFF, DIP3 ON = termination
activated
DIP1 and DIP2 OFF, DIP3 OFF = no failsafe,
no termination
DIP4 not assigned!
Note:
The failsafe termination can only be activated
once per bus segment!
LED for monitoring power supply
RJ-45 Ethernet connection
Supply voltage 85 - 265 V AC/DC; 2 VA
(2-pole multi-pin connector, 5 mm)
Connection LED (left) Activity LED (right)
O no connection O no activity
Yellow 10 Mbps Yellow half duplex
Green 100 Mbps Green full duplex
The operating status of the LAN interface (XPort) is indicated by two LEDs:
To Next Page
Loading...