Future Design MCT-CM, User Manual

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MCT-CM
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IMPORTANT: Functions performed via the digital inputs such as starting or stopping a ramp/soak program
are not logged to the audit trail. These are external inputs to the control module and are not
protected by security.
If a
digital input is programmed for the “Halt Setpoint Control” function and the input is active,
any set point change entered by an operator for a control loop will be logged to the audit trail;
however, the set point on the loop control will not change. This will cause a discrepancy in the
audit trail file as it will log the new set point entry even though the loop control is prevented
from taking it.
10.7.1 Digital Input Defeat
The Defeat selections are only available for specific digital input functions. Output defeat selections are
available for the Alarm Input and Output Defeat functions. Any of the available MCT control module outputs
can be selected for defeat, and multiple outputs can be selected for defeat when the input is activated.
Input defeat selections are available for the Defeat Input function. Any of the available MCT control module
inputs can be selected for defeat, and multiple inputs can be selected for defeat when the input is activated.
Note that the current input cannot be selected for defeat or the function would not be able to be activated.
10.8 Digital Outputs
The MCT provides eight digital outputs standard, and is configurable up to 32. The outputs can be used as
system event outputs, alarm outputs or for other signaling needs.