Appendix 6 Precautions For Replacing Qnud(E)(H)Cpu With Qnudvcpu; Appendix 6; Precautions - Mitsubishi Electric Q01UCPU User Manual

Appendix 6

Appendix 6.1
(1) System configuration
Item
RS-232 port
There is no RS-232 port.
• A programming tool that was available for the
QnUD(E)(H)CPU can no longer be used or
needs to be upgraded. (The use of GX
Developer is not supported in the system
Applicable products and
after replacement.)
software
• Some GOTs and intelligent function modules
that were available for the QnUD(E)(H)CPU
can no longer be used or need to be
upgraded.
Scan time is shortened in the High-speed
Universal model QCPU because operations are
performed at higher speed. When used in a
Multiple CPU system multiple CPU system, the High-speed Universal
model QCPU accesses to the control modules
frequently. As a result, the processing time in
other CPU modules may increase.
Current consumption The current consumption increases.
*1 This applies when the QnUD(H)CPU is replaced with the High-speed Universal model QCPU.
560
Precautions for Replacing QnUD(E)(H)CPU
with QnUDVCPU

Precautions

Precautions
*1
Replacement method
Use a USB or Ethernet port.
To communicate with an RS-232 interface,
use the QJ71C24N(-R2) in the system.
• Upgrade the version of GX Works2 to the
one compatible with the QnUDVCPU.
• Replace the GOT and intelligent function
modules to those compatible with the
QnUDVCPU.
Check the processing timings of other CPU
modules and adjust the access frequency of
the High-speed Universal model QCPU using
timers or the constant scan function.
Select a power supply module according to
the total current consumption in the system.
Reference
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Page 507, Appendix 5.2
QCPU User's Manual (Multiple
CPU System)
QCPU User's Manual
(Hardware Design,
Maintenance and Inspection)