Future Design MCTB 4.3, User Manual

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MCTB
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4.8.3 Output (32-45) Function
The output function selection is used to select the desired mode of operation for each digital output. Each
output is provided with its own function selection. The output numbers correspond to the markings on the
expansion IO module. The output selections are mutually exclusive, i.e., selecting one will turn off the others.
Once the desired function has been selected, press the “Done” button to set the output function for the selected
output and return to the main Expansion IO Configuration screen.
The
Event output function allows the output to be turned on and off via an automatic program or manually
through the MCTB
runtime application to act as a “soft” switch to turn system components on and off.
The
Manual event output only function is similar to the Event output function above as it allows the output to
be turned on manually through the MCTB
runtime application to act as a “soft” switch to turn system components
on and off. However, the output cannot be controlled via an automatic program which allows the output to be
controlled separately regardless of program operation.
The
Math/Logic event output only function allows the output to be controlled only by a logic equation (See
section 4.6 Math/Logic Configuration ). The output will not be accessible through the runtime application as a
“soft” switch like the event/manual event only selections.
IMPORTANT: The expansion IO module is equipped with a communications safety interrupt. If
communications are lost between the MCTB and the expansion module for more than 60
seconds, all outputs of the expansion module will be turned off. When communications to the
expansion module is restored, the outputs will immediately return to their previous state.
Therefore, it is recommended that the system is
set to an “off” state and power is cycled to the
MCTB prior to troubleshooting any communication failures in order to reboot the system from
the off state. This ensures that any logic associated with output operation can resume from a
known state when communications are restored in order to maintain any programmed
sequence of events that must occur in order according to existing logic blocks.