Figure. 5.4.8 - 153. Logic output example.
5.4.9 Logical inputs
Logical inputs are binary signals that a user can control manually to change the behavior of the
AQ-200 unit or to give direct control commands. Logical inputs can be controlled with a virtual switch
built in the mimic and from a SCADA system (IEC 61850, Modbus, IEC 101, etc.). Logical inputs are
volatile signals: their status will always return to "0" when the AQ-200 device is rebooted.
Logical inputs have two modes available: Hold and Pulse. When a logical input which has been set to
"Hold" mode is controlled to "1", the input will switch to status "1" and it stays in that status until it is
given a control command to go to status "0" or until the device is rebooted. When a logical input which
has been set to "Pulse" mode is controlled to "1", the input will switch to status "1" and return back to "0"
after 5 ms.
The figure below presents the operation of a logical input in Hold mode and in Pulse mode.
Figure. 5.4.9 - 154. Operation of logical input in "Hold" and "Pulse" modes.
A logical input pulse can also be extended by connecting a DELAY-low gate to a logical output, as has
been done in the example figure below.
A
AQ
Q-C213
-C213
Instruction manual
Version: 2.04
247
Содержание AQ-C213
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