8
ST5/10-Si,-Q,-C, -IP Hardware manual
920-0004 Rev. C
4/21/11
Connecting to the PC using RS-232
• Locate your computer within 8 feet of the drive.
• If you have a CANopen drive, you still need to connect to the RS232 port on your PC to configure the
drive and download Q Programs, if necessary. Once configuration is complete, refer to the CANopen Manual
for information on using your CANopen drive.
• If you have an Ethernet drive, this port is not used. All communcation uses the RJ45 Ethernet connector.
• RS-232 drives are shipped with a communication cable. Plug the large end into the serial port of your PC
and the small end into the PC/MMI jack on your drive. Secure the cable to the PC with the screws on the
sides.
Never connect a drive to a telephone circuit. It uses the same connectors and cords as
telephones and modems, but the voltages are not compatible.
If your PC does not have a serial port, you should purchase a “USB Serial Converter”. We have had good
results with the USB-COM-CBL from byterunner.com. If you wish to use a different converter, it is recom-
mended to use one that makes use of the FTDI chipset to perform the actual conversion.
Pin Assignments of the PC/MMI Port
(RJ11 connector)
ground (to PC ground)
TX (to PC RX)
No connection
RX (to PC TX)