APPENDIX D: COMMUNICATION CODES
UNIFLOW
®
4 PULSED HEAT CONTROL
D-4 990-908
Significance of the Control’s RS232/485 SELECT Parameter on the
Communications Screen
1. RS-232 and RS-485 are mutually exclusive. One or the other is selected at the Communications
screen.
2. The serial link to the host computer should be plugged into the proper socket on the back of the
Control. If RS-232 is the selection, this socket would be labeled RS 232. Likewise, if RS-485 is
selected, the serial link to the host should be plugged into the socket labeled RS 485.
NOTE: Due to the way RS-232 handles line logic states, it will work even if RS-485 is selected
and even if the serial link is plugged into the RS 485 socket. The reverse is not true, however. RS-
485 will work only if selected and the link plugged into the correct socket. For consistency and
clarity, please follow the guidelines in 1 and 2 above.
To Next Page
Loading...