Factors That Shorten The Scan Time - Mitsubishi 00JCPU User Manual

10.1.4Factors that shorten the scan time

Scan time can be shortened by changing parameter settings as described in this section.
(1) A series CPU compatibility setting ("A-PLC") (
Note2
Note10.2
Scan time can be shortened by the time shown in Table10.27. To shorten the scan time, deselect the "Use special
relay / special register from SM/SD1000" item in the PLC system tab of the PLC parameter dialog box.
Q02CPU
Q02HCPU, Q06HCPU, Q12HCPU, Q25HCPU
Q02PHCPU, Q06PHCPU, Q12PHCPU, Q25PHCPU
When deselect the "Use special relay / special register from SM/SD1000" item, the special relay and special register must be
replaced as described below.
• A series-compatible special relay (SM1000 to SM1299)
• A series-compatible special register (SD1000 to SD1299)
Note2
Note10.2
Basic
The A series CPU compatibility setting is not available for the Basic model QCPU, Process CPU, and Redundant CPU.
10 - 20
Table10.27 Processing time that can be shortened (with "A-PLC" parameter setting)
CPU module
Figure 10.6 A series CPU compatibility setting
Q series dedicated special relay (SM0 to SM999)
Q series dedicated special register (SD0 to SD999)
Process
Redundant
Section 8.1.2(2))
Processing time
0.07ms
0.03ms
Deselect this item.