Creating a New PLC Section 3-5
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• If the CPU Bus Unit or the Special I/O Unit is registered, the input dialog box
for a Unit number or Machine number will be displayed as shown below.
Input Unit number for the CPU Bus Unit and Machine number for the Special
I/O Unit. Unit number or Machine number will be converted to Unit address
and displayed in the [Registered PLC Unit List].
• If a unit is added, the typical I/O refresh interval for each unit will be added to
the logical I/O refresh interval.
• Double-clicking the registered CPU Bus Unit or Special I/O Unit enables to
change the Unit number.
Note
Set the Unit numbers so as not to overlap each other. Register the Units for the
number actually to be used. Mismatching number will cause incorrect calcu-
lation of the I/O refresh interval. As the Simulator Communications Unit is a
virtual unit, the virtual I/O refresh interval will be 0 ms.
Note
Unlike an actual PLC, the CX-Simulator does not limit the number of Units
(excluding a CPU Bus Unit) to be registered.
Note
Refer to 9-2 Cycle Time and Time for the detail of the cycle time.
5. Clicking the [Next(N)>] button after completing the registration of the Units
to be used will display the [Network Communications Settings] window. Set
for the network communications process from the ladder process to the
external devices.
• Network Communications Settings
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