Lock and unlock an I/O variable

When debugging, choose to lock, unlock, and force the values of I/O variables.
To lock and unlock an I/O variable
  1. Access the I/O Wiring for the device and select the channel to lock or unlock.
    TIP: To lock or unlock multiple channels, hold
    Ctrl
    while selecting each required channel.
  2. To lock or unlock the variable, right-click the variable, and then select or clear
    Toggle lock on selected channels
    .
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