Appendix 5 Replacing Basic Model Qcpu Or Qn(H)Cpu With Qnucpu; Appendix 5; Replacement Precautions - Mitsubishi Electric Q01UCPU User Manual

Appendix 5

Appendix 5.1
This section describes precautions for replacing the Basic model QCPU or High Performance model QCPU with the
Universal model QCPU and the replacement methods.
Appendix 5.1.1
(1) System configuration
Item
GOT GOT900 series cannot be connected.
Applicable products Products and software compatible with the Universal
and software model QCPU must be used.
To configure a multiple CPU system, CPU modules
Multiple CPU system compatible with the Universal model QCPU must be
used.
(2) Program
Item
Language and
Some instructions are not supported.
instruction
When using the floating-point data comparison
instructions, LDE, ANDE, ORE, LDED,
ANDED, and ORED, if the comparison source
Floating-point
data are -0, nonnumeric, unnormalized number, or
operation
± , "OPERATION ERROR" (error code: 4101) is
detected.
=,<>,<=,>=,<,>.)
When a device number exceeds a setting range due
Device range check at
to index modification, "OPERATION ERROR" (error
index modification
code: 4101) is detected.
If latch ranges of internal user devices are specified,
Latch setting the processing time is added in proportion to the
device points set to be latched.
496
Replacing Basic Model QCPU or Qn(H)CPU
with QnUCPU

Replacement precautions

Replacing Basic model QCPU with Universal model
QCPU
Precautions
Precautions
*1
( indicates one of the following;
Replacement method
Use GOT1000 or GOT2000 series.
Products need to be replaced for the
compatibility with the Universal model QCPU
and software need to be upgraded for the
communication with the Universal model QCPU
are described in Page 507, Appendix 5.2.
CPU modules compatible with the Universal
model QCPU are described in Page 507,
Appendix 5.2.
Replacement method
Replace the instructions not supported in the
Universal model QCPU are described in Page
511, Appendix 5.3.
When the floating-point data comparison
instructions are used, modify the program as
described in Page 535, Appendix 5.4.2.
Deselect the "Check Device Range at Indexing"
checkbox in the PLC RAS tab of the PLC
parameter dialog box so that checking is not
performed.
The latch function of the Universal model QCPU
is enhanced.
(1) Large-capacity file register (R, ZR)
(2) Writing/reading device data to the
standard ROM (SP.DEVST and
S(P).DEVLD instructions)
(3) Latch range specification of internal
devices
(4) "Time Setting" specification in the latch
*2
interval setting parameter
Change the latch method to the one described
above according to the application.
Reference
---
Page 507, Appendix 5.2
Page 507, Appendix 5.2
Reference
Page 511, Appendix 5.3
Page 491, Appendix 4.4,
Page 535, Appendix 5.4.2
Page 539, Appendix 5.4.3
Page 119, Section 3.3,
Page 121, Section 3.3 (5)
(b),
Page 543, Appendix 5.4.4