PLX51-PBM
Installation
PROFIBUS DPV0/DPV1 Master or Slave to EtherNet/IP™ or Modbus® Gateway
User Manual
ProSoft Technology, Inc.
Page 13 of 196
The PLX51-PBM has an input voltage range of 10-36Vdc that needs to be applied to
the module via the power connector. The power connector also provides an Earth
connection for the PLX51-PBM.
IMPORTANT: It is recommended to always have a good clean earth connected to the module via the
Earth connector on the power connector.
Figure 2.3
– PLX51-PBM Auxiliary communications connector
The RS485 port provides the standard A and B conductors as well as a RS485 drive
enable. The (EN) transmit drive enable is provided to allow the PLX51-PBM to be
used with repeaters and radios that may require a transmit enable line. Note that the
EN line is referenced to RS232 GND when an RS485 mode is selected.
The RS232 port provides the standard communication conductors (RX, TX, and
GND) as well as hardware handshaking lines for legacy systems (RTS
– Request to
Send, CTS
– Clear to Send).
Both RS232 and RS485 share a common cable shield connection which should be
connected to the shield of the outgoing cable (RS232 and/or RS485).
At the back of the module, there is slot for a SD memory card. The module provides
four DIP switches at the top of the enclosure as shown in the top view figure below.
Figure 2.4
– PLX51-PBM Top view