Rs-232 Operation - Equinox Systems PPM3 MK2 User Manual

3.4 RS-232 Operation

The PPM3 programmer is shipped from the factory enabled for 'RS-232' communications at
communications address '0'. This is the normal mode of operation when only one programmer is to be
connected to a PC or other RS-232 enabled Control System. A suitable 9-way to 9-way serial cable is
supplied with the programmer which connects from the programmer 9-way RS-232 port to a spare
COM port on your PC.
Fig. 3.4.1 Set up for RS-232 Communication (Single channel)
Fig. 3.4.2 DIP Switch Settings for RS-232 Communications
Mode Node DIP Switch Setting
Address
RS-232 0
For RS-232 operation (default setting):
•
Set the RS-232 / RS-485 DIP Switch (5) to the ON (RS-232) position
•
Set the Node Address to '0' (default address).
•
Connect the 9-way serial cable from the 9-way COM port on the PPM3 programmer to a spare
COM port on your PC or other RS-232 Control System
52
Comment
•
RS-232 Mode Enabled
(factory default)
•
Set DIP Switch 5 to the ON position
•
Programmer now uses the 9-way COM
port on the rear panel of the module.
•
Communications address is set by DIP
switches 1-4 as a binary weighted
address in the range 0 – 15.
•
Factory Default address is 0
(i.e. DIP Switches 1-4 in the ON or '0'
position).
PPM3 MKII Programmer - User Guide - V1.04 - 10
th
May 2008