RayTek MARATHON MR - PC Connection via RS232;485

Installation
Marathon MR Rev. E2 04/2011 27
5.2.5 PC Connection via RS232/485 Converter
To connect to a computer’s RS232 port, you need one of the Interface Converter accessories (see table
below) and the proper RS232 cable. If your computer has an RS485 interface card, you can connect the
sensor directly to its port (using the proper connector) with wiring from the electronic enclosure’s
terminal block.
Do not use other commercially available converters, they do not have the necessary
features!
Order number
Model
XXX485CVT
25 pin to terminal strip interface converter, recommended for direct
wiring between a serial interface and the terminal block
XXX485CVT1
XXX485CVT with 110 VAC power adapter
XXX485CVT2
XXX485CVT with 230 VAC power adapter
XXX485CV
25 pin to 25 pin interface converter
XXX485CV1
XXX485CV with 110 VAC power adapter
XXX485CV2
XXX485CV with 230 VAC power adapter
Table 2: Available RS232/485 Interface Converters
Connect the interface converter to an available COM port on your computer, either directly or with an
appropriate serial cable (available from computer supply stores). If your computer has a 9-pin serial
connector, use the supplied 25-pin to 9-pin cable between the interface converter or cable and the
computer.
Figure 18: RS232/485 Interface Converter, with pins (left, XXX485CV…)
or terminal (right, XXX485CVT…)
The RS485 output is as follows:
Baud rate: 300, 1200, 2400, 9600, 19200, 38400 (default)
Data format: 8 bit, no parity, 1 stop bit
4-wire, full duplex, point-to-point
not
used
RS232 25-pin female connector
RS232 25-pin female connector
RS485 25-pin male connector
RS485 Connector (screw terminals)
Optional power connector
9 VDC as alternative to
24 VDC power supplement
Optional power connector
9 VDC as alternative to
24 VDC power supplement
From electronics housing ...