38
6K Hardware Installation Guide
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General Notes
• Power up your computer or terminal BEFORE you power up the 6K.
• Make sure the serial interface is connected as instructed on page 24. Shield the cable to
earth ground at one end only. The maximum RS-232 cable length is 50 feet (15.25 meters).
• RS-232: Handshaking must be disabled. Most software packages allow you to do this.
• RS-485: Make sure the internal DIP switches are configured as instructed on page 5.
Test the
Interface
1. Power up the computer or terminal and launch the terminal emulator.
2. Power up the 6K. A power-up message should be displayed, followed by a prompt (
>
).
3. Type “
TREV
” and press the ENTER key. (The
TREV
command reports the software
revision.) The screen should now look as follows (if not, see Problem/Remedy table
below).
*PARKER COMPUMOTOR 6K MOTION CONTROLLER
>TREV
*TREV92-016740-01-5.0 6K
Problem
Remedy (based on the possible causes)
No Response
• COM port not enabled for 6000 language communication.
If RS-232 connected to “RS-232” connector : issue “
PORT1
” and “
DRPCHKØ
” commands.
If RS-232 connected to “RS-232/485” connector: issue “
PORT2
” and “
DRPCHKØ
” commands.
If RS-485 connected to “RS-232/485” connector: issue “
PORT2
” and “
DRPCHKØ
” commands.
• Serial communication may be disabled; enable with the
E1
command.
• RS-232: Echo may be disabled; enable with the
ECHO1
command.
• If you are using an RS-232 connection between the host computer and the master 6K connected to multiple 6Ks
in an RS-485 multi-drop, make sure the master 6K has these settings executed in the order given (you should
place these settings in your power-up
STARTP
program):
PORT1
(select RS-232 port, COM1, for configuration)
ECHO3
(echo to both COM ports)
PORT2
(select RS-232/485 port, COM2, for configuration)
ECHO2
(echo to the other COM port, COM1)
• Faulty wiring. See instructions on page 24. RS-485: verify internal DIP switch settings on page 5. Also check for
shorts or opens.
• Is the cable or computer/terminal bad? Here’s a test:
1. Disconnect the serial cable from the 6K end only.
2. Connect the cable’s Rx and Tx lines together (this echoes the characters back to the host).
3. Issue the
TREV
command. If nothing happens, the cable or computer/terminal may be faulty.
• The controller may be executing a program. Issue the
!K
command or the
<ctrl>K
command to kill the program.
Garbled
Characters
• Verify setup: 9600 baud (range is 9600-1200), 8 data bits, 1 stop bit, no parity; RS-232: Full duplex; RS-485:
Half duplex (verify internal DIP switch settings on page 5).
• RS-485: Transmission line not properly terminated. See page 5 for internal DIP switch settings. See page 24for
connections and calculating termination resistors (if not using the internal resistors via internal DIP switches).
• Faulty wiring. See instructions on page 24. RS-485: verify internal DIP switch settings on page 5. Also check for
shorts or opens.
Double Characters
• Your terminal emulator is set to half-duplex; set it to full-duplex.
