ABB S800 I/O User Manual page 75

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As the test requirements vary considerably between different installations,
the system engineer is responsible for determining the functional requirements
which apply.
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The following equipment is a minimum requirement:
• Necessary parts of the documentation listed in Section 1.3 Related
Documentation.
• Specific documentation enclosed with the equipment.
In more complex installations which include closed loop control some additional
test equipment can be necessary/practical at tuning:
• Access to an operator station for loop tuning.
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A general description of how to set the controller in operation and start the
execution of application program is presented in the Advant Controller manuals.
Once the system is started and ready for operation the I/O can be checked.
General information for some functional tests, which can be made to verify the
S800 I/O are presented in the following sections.
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With the application program running in the controller, the inputs and outputs can be
checked. This should be done by using a signal by signal procedure. The data base is
then used as a final check-point.
It may be necessary to simulate digital and analog input signals which are normally
generated by the process. Suitable methods are:
• Digital inputs: Activate the input by connecting a voltage which corresponds to
the nominal value of the input. The "1" and "0" status is simulated by opening
and closing the terminal connections. Activate the input as close to the process
3BSE 020 923R101
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