Future Design MCT-CM, Руководство пользователя

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MCT-CM
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Since the field is now set to one, only the first analog input will be accessible from the Offline\Setup\IO menu
for the end user. Analog input 2, the OEM input, is now hidden and cannot be accessed by the end user. The
analog input configuration is then protected and the analog inputs will operate in the background as set by the
OEM.
NOTE: See section 10.5 Analog Inputs for information on configuring the analog inputs for operation.
4.1.8 Setting the Number of Analog Outputs
The # of Analog Out field sets the number of analog outputs that will be accessible in the MCT runtime
application’s Offline\Setup\IO menu. The analog outputs provide the ability to transmit loop input, set point or
percentage of output values to a remote device such as a chart recorder via a 0-10Vdc or 4-20mA signal. The
maximum number of analog outputs available is 7, based on the number of optional analog I/O cards attached
to the MCT CPU (one output per analog I/O card).
If the maximum number of analog outputs is set to zero, the Analog Outputs selection under the Offline\Setup\IO
menu in the runtime application will be hidden, regardless of the number of analog outputs physically attached
to the system. This provides the OEM with a means of protecting the outputs from accidental changes that
may occur if the end user accesses them. It also provides a means for offering the end user analog outputs
that they can set up for their own use, while hiding outputs specifically configured for proper system operation
that the user is not to have access to.
4.1.8.1 Protected Analog Output Example
Two analog I/O cards are attached to the system in order to provide a total of two analog outputs. One output
is to be provided to the end user while the other output is set up at the factory and is used specifically by the
OEM so it is not to be altered.
In order to set up the OEM analog output, the
“# of Analog Out” field must first be set to two. This allows both
outputs to be accessed from the Offline\Setup\IO menu in the runtime application. The OEM can then set up
analog output 2 while leaving 1 available for the end user. Once the system has been configured and tested,
prior to shipment, the OEM can then access the configurator once more and change the
“# of Analog Out” field
to a value of one.
Since the field is now set to one, only the first analog output will be accessible from the Offline\Setup\IO menu,
i.e., output 1, the analog output for the end user. Analog output 2, the OEM output, is now hidden and cannot
be accessed by the end user. The analog output configuration is then protected and the analog output will
operate in the background as set by the OEM.
NOTE: See section 10.6 Analog Outputs for information on configuring the analog outputs for operation.
4.1.9 Auto-Online Enable/Disable
The default setting for the auto-online function is
“disabled”. This prevents the MCT control module from
operating until the HMI initializes and begins the MCT runtime application. This ensures that the system will
not run until the runtime application is active, so that the operator has a means for viewing and controlling
system operations. Once the HMI starts the MCT runtime application, it instructs the control module to begin
operation.
By enabling the auto-online function, the MCT control module will begin operation upon application of power,
as it no longer requires the run instruction from the MCT application. It is intended for use on equipment that
does not use a local MCT display, or that contains multiple MCT systems linked together and operated from a
single computer and software interface such as Future Design Control’s EnVision software package.