KEYENCE KV Series - Manual (Page 108)

Chapter 3 Simulator
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3.1 Outline of the Simulator Functions
This section outlines the simulator functions and the precautions for use.
3.1.1 Outline of the functions
The simulator simulates the operations of the ladder diagram created by the editor
without having to connect to the PLC.
The simulator offers the following functions.
• Confirms a program’s operation status in real-time using the ladder monitor,
registration monitor (timing chart) and monitor all.
• Performs simulations using diversified execution methods such as continuous
scan, continuous step, one step and one scan.
• Enables efficient debugging due to the undo function for execution of one step in
the reverse direction and execution of continuous step in the reverse direction.
• Provides easy adjustment of preset values, and current values of timers,
counters and devices, as well as contact comments.
• Sets and resets contacts forcibly.
3.1.2 Restrictions in the simulator
• Special utility relays 2002 to 2012 and 2206 are actuated. Other special utility
relays are not actuated.
• High-speed counters are not actuated.
• The direct clock pulse function is not available.
• The positioning control function is not available.
• The following restrictions are provided in operations of interrupt programs.
• Data memory is not actuated if external data input is used.
KV-10 to 80: DM700 to DM799
KV-300: DM9000 to DM9299, DM9407, DM9517
• Because simulation is performed in Windows, the scan time is longer than the
actual time required. Pay careful attention to the timer setting.
• A small difference is generated in the cycle time indication depending on the
personal computer model. This occurs even when the same ladder program is
used because operations equivalent to those in the KV main body are simulated
internally in the personal computer.
INT CTC* Is not executed.
INT 0000 to INT 0003 Executed in the early portion of a scan.
INT 0003 The timing edge can be changed over when 2206 goes ON/
OFF. At this time, the current value of the CTH1 is not as
signed to the TM30.
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