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MCT-CM
52
If the maximum number of digital outputs is set to zero, the Digital Outputs selection under the Offline\Setup\IO
menu in the runtime application will be hidden, regardless of the number of digital 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 digital 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.
4.1.6.1 Protected Digital Output Example
Eight digital outputs are to be provided to the end user while 8 outputs are set up at the factory and are used
specifically by the OEM so they are not to be altered. In order to get a total of 16 outputs, the optional 8 point
digital output card is attached to the system.
In order to set up OEM digital outputs, the
“# of Digital Out” field must first be set to 16. This allows all 16
outputs to be accessed from the Offline\Setup\IO menu in the runtime application. The OEM can then set up
digital outputs 9 - 16 while leaving 1 - 8 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 Digital
Out
” field to a value of eight.
Since the field is now set to eight, only the first eight digital outputs will be accessible from the Offline\Setup\IO
menu, i.e., outputs 1 - 8, the digital outputs for the end user. Digital outputs 9 - 16, the OEM outputs, are now
hidden and cannot be accessed by the end user. The digital output configuration is then protected and the
digital outputs will operate in the background as set by the OEM.
NOTE: See section 10.8 Digital Outputs for information on configuring the digital outputs for operation.
4.1.7 Setting the Number of Analog Inputs
The # of Analog In field sets the number of analog inputs that will be accessible in the MCT runtime
application’s ‘Offline\Setup\IO’ menu. The analog inputs provide a means for generating a remote set point for
any of the configured control loops from a 2-10Vdc or 4-20mA source. The maximum number of analog inputs
available is 14, based on the number of optional analog I/O cards attached to the MCT CPU (two inputs per
analog I/O card).
If the maximum number of analog inputs is set to zero, the Analog Inputs selection under the Offline\Setup\IO
menu in the runtime application will be hidden, regardless of the number of analog inputs physically attached
to the system. This provides the OEM with a means of protecting the inputs from accidental changes that may
occur if the end user accesses them. It also provides a means for offering the end user analog inputs that they
can set up for their own use, while hiding inputs specifically configured for proper system operation that the
user is not to have access to.
4.1.7.1 Protected Analog Input Example
One analog I/O card is attached to the system in order to provide a total of two analog inputs. One input is to
be provided to the end user. The other input 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 input, the
“# of Analog In” field must first be set to two. This allows both
inputs to be accessed from the Offline\Setup\IO menu in the runtime application. The OEM can then set up
analog input 2 while leaving input 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
In
” field to a value of one.