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CJ1-H-R, CJ1-H, CJ1M, and CJ1 CPU Unit Comparison Section 1-7
I/O tables Detailed information on
I/O table creation errors
Detailed I/O table error information is stored in A261 whenever the I/O tables
cannot be created for any reason.
Not supported.
Displaying presence of
first rack word setting
on Programming Con-
sole
It’s possible to confirm if the first rack word has been specified for the system on
the Programming Console display.
The first rack word is specified from the CX-Programmer, making it previously
impossible to confirm the setting from the Programming Console.
Not supported.
Built-in I/O Not supported. CJ1M-CPU2@ Not supported.
Serial PLC Link Not supported. Supported. Not supported.
Scheduled interrupts set in incre-
ments of 0.1 ms
Supported. Not supported. Supported. Not supported.
Battery CPM2A-BAT01 CJ1W-BAT01 CPM2A-BAT01
Opera-
tion when
Unit
doesn’t
complete
startup
process
CPU Unit startup Starting or not starting (standby) the CPU Unit in MONITOR or RUN mode even
if a Unit has not completed startup processing can be specified in the PLC
Setup.
CPU Unit
standby (fixed)
Sequence
instruc-
tions
Differentiated LD NOT,
AND NOT, and OR NOT
instructions
Supported. Not supported.
(The same
results can be
achieved by
combining differ-
entiated LD,
AND, and OR
instructions with
the NOT instruc-
tion.)
OUTB, SETB, and
RSTB instructions to
manipulate individual
bits in DM and EM Area
words
Supported. Not supported.
Timer/
counter
instruc-
tions
TIMU (0.1-ms, BCD),
TIMUX (0.1-ms, binary),
TMUH (0.01-ms, BCD),
TMUHX (0.01-ms,
binary)
Supported.
Either BCD or
binary can be
selected (with CX-
Programmer Ver.
7.1 or higher).
Not supported.
Format for updating
PVs for TIM, TIMH,
TMHH, TTIM, TIML,
MTIM, CNT, CNTR,
CNR, TIMW, TMHW,
CNTW instructions
Supported.
Either BCD or binary can be selected (with CX-Programmer Ver. 3.0 or higher).
BCD only
Special
math
instruc-
tions
32-bit signed data line
coordinates and X axis
starting point specifica-
tion for APR instruction
Supported. Not supported.
Floating-
point deci-
mal
instruc-
tions
High-speed trigonomet-
ric functions: SINQ,
COSQ, and TANQ
instructions
Supported (with
CX-Programmer
Ver. 7.1 or higher).
Not supported.
Single-precision calcu-
lations and conversions
Supported (enabling standard deviation calculations). Not supported.
Conversions between
single-precision float-
ing point and ASCII
Supported.
Floating point can be converted to ASCII for display on PTs.
ASCII text strings from measurement devices can be converted to floating-point
decimal for use in calculations.
Not supported.
Double-precision calcu-
lations and conversions
Supported (enabling high-precision positioning). Not supported.
Text
string,
table
data, and
data shift
instruc-
tions
Text string and table
data processing instruc-
tion execution
Data processing can be performed normally or in the background (specified for
each instruction).
(Using time slices to process instruction over several cycles reduces the effect
of these instructions on the cycle time.).
Normal process-
ing only.
Stack insertions/dele-
tions/replacements and
stack counts with table
processing instructions
Supported.
Effective for tracking workpieces on conveyor lines.
Not supported.
Item CJ1-H-R CPU
Unit
CJ1-H CPU Unit CJ1M CPU Unit CJ1 CPU Unit
CJ1H-CPU6@H-R CJ1H-CPU6@H CJ1G-CPU4@H CJ1M-CPU2@/1@ CJ1G-CPU4@
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