
Rexroth SYNAX 200 Set-Up interfaces (SynTop, DOLFI) 8-3
DOK-SYNAX*-SY*-12VRS**-PR01-EN-P
Interface module PSM-EG-RS232/RS485-P/2D
YG000061V01_NN.bmp
Fig. 8-5: Interface module PSM-EG-RS232/RS485-P/2D
Switch settings:
1. 180R BUS-END ON (only at the bus end)
2. S1 to DTE
3. RTS/CTS high-active (bridge jumper X6 from pin 3 to pin 4)
The RS485 directional switches of the module uses the RTS signal. With
these cables the TxD of the sender is connected to the RTS of the
module, i.e. with each 1 bit there is a switch to transmit.
With switch 180R BUS-END a matching resistor 180R and each 470R
against +5V and GND can be connected to the bus end.
The voltage supply for the interface modules comes from 24 V which is
connected via the intended screw-in clamps.
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