User guide

P/N: 021-00154, Rev. A.6 - updated for V4.7 Tools Page | 163
Notice the bubbles are directly related to the flowchart steps, now the programmer needs to write code for the
individual bubbles. This is a very simple example, but it gives a demonstration of how the flowchart can be
created and then converted into the bubble logic.
Appendix G HCT Terminology and Definitions
Always bubble – Time critical logic needs to be contained here because this bubble will be executed based
on the process update time(default 10ms).
Analog Inputs – The state of the input is measured from 0-5vdc. Under the universal Input configuration the
input ranges are (-1 to +1 volt), (0 to 5volts), (0 to 10volts), or (0 to 22mA).
Bang Bang Valve – Discrete function on/off type valve.
Compile – This function (Ctrl-M) will create a .pgm file that will be loaded into the DVC system. Any syntax
errors in the program will be flagged in this step.
Counter Mode Input – Input counts high pulses depending input range, counts would be reset through
program.
Current Regulation - provides for automatic hardware and BIOS based adjustments to maintain the coil
current at the application code’s PWM% setting.
Digital Inputs – The state of the input is either a logical 0 (off) or a logical 1 (on).
Dual Coil High-Side Output- Gives programmer access to (2) PWM high side outputs.
DVC – Digital Valve Controller.
EEMemory - Electronically erasable memory (EE Memory) is memory that is maintained (non volatile) when
there is no power to the DVC5/7/10. EEmemory locations can be used to interface to the compiled, running
DVC program.
Enable Current Ramps - The output current will be ramped up or down based on the ramp times to the Low-
Side Name setpoint.
Enable Process PI - provides a facility where the application program sets a desired setpoint value and then
continually determines a feedback variable
Input/Output Funcions – Patented feature of HCT, allows programmer to simplify math functions by custom
configuring an output based on a programmable input. Could be used to give a non-linear output of a pump.
High-Side Only Output – Gives programmer access to (2) bang bang high side outputs.
Output Group – The outputs of the DVC module can be configured into 4 groups, Dual Coil High Side, Single
Coil High-Side, Single Coil Low-Side, High-Side Only.
Password (App) – Level 2 Password to limit access to certain screens in the Loader Monitor.
Password (Bios) – Level 3 Password to limit access to certain screens in the Loader Monitor.
Password (Send) – Level 1 Password to limit access to certain screens in the Loader Monitor.
Process Update Time (ms) – Sets the process time from 1 to 20ms. Default is 10ms.
Program Loader Monitor(PLM) – software used to download programs into DVC modules. Also used to
monitor program ‘online’.
Programming Tool – Intella software used to author and modify DVC code.
PWM Duty Cycle Control - The Low-Side Name allows direct PWM control.
PWM Frequency – Controls the frequency output.
PWM (Pulse Width Modulation) – Proportional control 0-100%.
RPM Pulse Input – Input will count pulses, set pulses time out and pulses per rev. Could be used to count
teeth on a gear to determine speed of a driveshaft.
Single Coil Low-Side Output- Gives programmer access to (1) PWM low side output and (2) bang bang high
side valves.
Single Coil High-Side Output- Gives programmer access to (1) PWM high side output and (1) bang bang
high side valves.
System Heartbeat – Controller emits a pulse at a regular interval. Sometimes used to acknowledge a module
is still online and communicating.
Univ
ersal Inputs – These inputs can be configured for three types of inputs, Analog Input, RPM Pulse Input,
counter mode or digital input.