WriteDiscrete

Writes a range of bits to a discrete output channel.

Note: Discrete output functions can only run when the vision system is Online.
Parameter Description
Event

Specifies the event that forces an update.

This parameter needs to be a reference to any event with a timestamp, for example, one of the following: 

  • A cell containing an Event function.
  • A cell containing a Button function.
Start Bit

Specifies the first bit of the set. The value of this parameter varies:

  • The maximum allowed value varies depending on hardware and the number of output lines:

    • In-Sight 2800: 6

    • In-Sight 3800: 5

    • In-Sight 8900: 3
Number of Bits

Specifies the number of bits in the set. The value of this parameter varies:

  • The default value is 1. The maximum value is 16.

  • The minimum allowed value is 1.

  • The maximum allowed value varies depending on hardware and the number of output lines:

    • In-Sight 2800: 7

    • In-Sight 3800: 6

    • In-Sight 8900: 4

    Note: Number of Bits varies depending on hardware support and the number of output lines.
Value Specifies the positive integer value. The maximum value depends on the number of written bits.
Override Output Delay

When checked, the function overrides the Output Delay setting defined in the Discrete I/O Settings dialog, if any.

Note:

The function can only override the Output Delay setting if it is already enabled. If Output Delay is disabled in the Discrete I/O Settings dialog, the function returns an error when trying to override the setting.
Output Delay (ms) Defines the output delay in milliseconds.
Returns The value written, #ERR for any invalid input parameter.