3.6 Device-specific Settings
3.6.5 Setting the Scan Times
3-51
3
Machine Controller Setup
Example: High-speed Scan = 0.125 ms
* The purpose of this system service register is to determine from a ladder program whether the MP2000
option service is being scanned.
Low-speed (L) Scan
This section describes how to set the scan time of a low-speed processing program (L, Lxx,
Lxx.xx) in milliseconds.
This example shows set values for a control cycle of pushbuttons and similar controls.
The following table shows the possible set values for the low-speed scan time.
I/O Processing
During the low-speed scan, the I/O service (I/O processing) is performed every scan, regard-
less of the set value.
MP2000 Optional Module Possible Set Values
Used
2.0 to 300.0 ms (in 0.5-ms increments)
Not used
The default low-speed scan time is 200.0 ms.
0.125 ms
0.5 ms
Reference issued at (9)
Reference issued at (5)
Reference issued at (1)
System service
register SB000008 *
MP2000 Optional
Module
Basic cycle (0.5 ms)
High-speed scan
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