TestIT:Configuration Ramp

6.3.6 RAMP

Ramp is a ramping device, that will ramp a symbol (usually an analog output), over a specified time and step size . It will run, when started from programming, and keep running, until stopped from programming. It is possible to trigger it instant, by delay, or by a symbol.

Setup fields:

• Configuration
• How to start?

Configuration:

1. Write the device name and device description (required)
2. Select if the device is active or not
3. Select the following:
   1. Ramp method – Time or Ref
   2. Symbol – Symbol to ramp
   3. Sample rate – If using ref symbol and sample is selected, the average value of the last X will be set
   4. Running symbol – Symbol set to true when ramp is running
   5. Ref symbol – Symbol used as a reference if ramp method is ref
   6. Timeout – Timeout for the entire ramp in MS
   7. Timeout symbol – Symbol set to true, if ref point is not met
4. Press Save

How to start?

1. Select start method
   1. Select between “when started”, “with delay” or “trigger by symbol”
2. Select waiting time (in MS) – Delay time
   1. Only applying if “with delay” is selected
3. Select trigger symbol – Symbol to get trigger value from
   1. Only applying if “trigger by symbol” is selected.
4. Select trigger validation – Type of validation.
   1. Select between “equal”, “not equal”, “less than or equal to”, “greater than or equal”.
   2. Only applying if “trigger by symbol” is selected.
5. Select trigger value – Value to validate against.
   1. Only applying if “trigger by symbol” is selected.

6.3.6.1 Setup/view ramp

Setup: A ramp sequence is made of several steps; ramp step and wait step.

Ramp step

1. Set point – Value to set within the time to point
2. Time to point in seconds – Time to ramp value to setpoint in seconds
3. Ref point – Time to wait in seconds
4. Tolerance - +/- tolerance of the ref point in which to accept the ref point

Wait step

1. Tim - Ordered List Iteme to point in seconds – Time to wait in seconds

Ramp graph:

• To see how the ramp will run, press Ramp graph

6.3.6.2 Commands

Commands in ramp are:

• RampStart
• RampStop

Find a code example and the parameters in the functions window, in section internaldevice.

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