DVC Application Notes
DVC controller goes into programming mode when powered up
The DVC controller is in programming mode when its MS and NS LEDs blink green in an alternating pattern. When the controller is in normal execution mode the MS and NS LEDs will be solid green, red or not illuminated.
The DVC controller normally goes into programming mode when the Program Loader Monitor running on your PC is active, the serial RS232 cable is connected between the PC and the DVC controller, you are attempting to load an application and the DVC is powered cycled. The DVC, when it is powered cycled looks at the RS232 lines (RTS specifically) to decide if it should go into programming or normal execution mode. On some PCs depending on the installed RS232 driver and the last program to access the serial port the RTS line can be left in a state where the DVC believes it should go into Programming mode even though the Program Loader Monitor is not running.
Controller not responding, Can't program
This
procedure should be used to regain use of a DVC Master Module
(DVC10, DVC7 or DVC5) if the module Flash Memory becomes corrupt
due to a power interruption during a BIOS/Application Program
download or any other reason. The presenting symptoms include a
module that will not communicate with a PC or other modules on
the buss and the Module Status (MS) and Node Status (NS)
indicators are flashing green alternately at a one second
interval. There are two
procedures as a guide to regaining control of a DVC Master
Module. The procedures are for BIOS / Program Loader Monitor 4.0
and BIOS / Program Loader Monitor 4.2 and higher.
DVC Family Program Variables Quick Reference Guide The information
in this guide is designed to allow you to find the correct variable with
correct syntax and use it effectively within your application code. Some
of these variables are commonly known while others were available but
not obvious to the user until now, and our field application engineers (
FAE’s ) have also guided engineering to add and clarify variables that
were unavailable before.
Driving PVG Type Valves using a DVC10 with “D” Type Outputs (e.g. DVC10-DDD)
This application note is intended to provide wiring, use and programming information to Programmers and System Engineers using a DVC10 with a “D” type output (e.g. DVC10-DDD) to control a PVG type valve.
Driving PVG Type Valves using a DVC10 without “D” Type Outputs (e.g. DVC10-KKK)
This application note is intended to provide wiring, use and programming information to Programmers and System Engineers using a DVC10 without a “D” type output (e.g. DVC10-KKK) to control a PVG type valve.