High Country Tek emc-3 - Manual (Page 32)

Page 32 of 39
emc-3 Controller Module
User Guide – Rev A
2) Connecting the PC to the DVC Family:
The DVC controller uses the RS232 standard to communicate between itself and
the PC. If a traditional ‘DB 9’ sub-miniature serial COMM port is available, please
use this port or, use one of the HCT recommended USB to serial converters to
ensure correct connection. Full details can be found on our website, and make
sure that the converter software drivers are fully installed as recommended. For a
standard ‘DB 9’ sub-miniature port follow the directions below:
 Install the Program Loader Monitor from the application disk
provided, following all on-screen instructions.
 Apply power to the DVC module.
 Locate an open serial communications port on your Windows PC.
 Plug one end of the DVC Family RS232 serial cable into the
chosen serial port (i.e. COM1, COM2, COM3, etc.) on the
computer.
 Plug the other end into the DVC serial cable WeatherPack
connector that comes from the DVC module main connector.
Important Notes – Accidental programming mode on DVC module:
If the RS232 serial cable is connected to the DVCmodule and the Program Loader Monitor program
is not running, the DVCcontroller may enter programming mode on power up, indicated by NO
LED illumination at all ( NO power ON e.t.c. )
To exit accidental programming mode try one of these solutions below:
 START the Program Loader Monitor program ( this takes control of the COMM port ) and
cycle power to the DVCmodule
 Unplug the RS232 cable and cycle power to the DVCmodule.
To exit programming mode at ANY time, disconnect the RS232 cable from the DVCmodule and
cycle power to the controller.