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4-2
Section
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CPM2C programming can be performed with any version of the SSS.
Refer to
3-4-8 Programming Device Connections
for details on connecting a
personal computer to the CPM2C.
4-2-2 Limitations and Precautions
When programming a CPM2C PC with the SSS, set the PC model to “CQM1.”
There are some software limitations because of differences between the
CPM2C and CQM1 CPUs.
CQM1
CQM1 data areas are larger than the corresponding CPM2C data areas, so the
data area addresses that don’t actually exist in the CPM2C or instructions not
supported by the CPM2C can be input and won’t be detected in the program
check. Be sure that the word and bit addresses are within the specified ranges
and that all instructions are supported.
If a program contains a data area address that exceeds the range of a CPM2C
data area, a memory error will be generated when the program is executed and
the Memory Area Specification Error Flag (AR 1308) will be turned ON.
Data area
CQM1 range
CPM2C range
Input words
IR 000 to IR 011
IR 000 to IR 009
Output words
IR 100 to IR 111
IR 010 to IR 019
Work words
IR 012 to IR 099
IR 112 to IR 227
IR 020 to IR 049/IR 200 to IR 227
(IR 050 to IR 199 cannot be used.)
SR area
SR 228 to SR 255
SR 228 to SR 255
HR area
HR 00 to HR 99
HR 00 to HR 19
(HR 20 to HR 99 cannot be used.)
AR area
AR 00 to AR 27
AR 00 to AR 23
(AR 24 to AR 27 cannot be used.)
LR area
LR 00 to LR 63
LR 00 to LR 15
(LR 16 to LR 63 cannot be used.)
Timer/Counter
area
TIM/CNT 000 to 511
TIM/CNT 000 to 255
(TIM/CNT 256 to 511 cannot be used.)
DM
area
Read/write
DM 0000 to DM 6143 DM 0000 to DM 1999,
DM 2022 to DM 2047
(DM 2048 to DM 6143 cannot be used.)
Read-only
DM 6144 to DM 6568 DM 6144 to DM 6599
Error Log
DM 6569 to DM 6599 DM 2000 to DM 2021
PC Setup
DM 6600 to DM 6655 DM 6600 to DM 6655
Since the PC model is set to “CQM1,” a program that will run properly in the
CQM1 will pass the program check even if it won’t run properly in the CPM2C.
An error message will be displayed and the values will not be accepted if a data
area address that exceeds the range of a CPM2C data area is entered for moni-
toring, time charts, an instruction operand, or a timer/counter SV.
Program Input and
Program Check
Monitoring, Online
Editing, and Set Values
Содержание CPM2C
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