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Specifications Appendix A
Specifications
Note 1. Communications-type CPU Units have only 33 points.
2. Output bit Q3 of CPU Units with communications cannot be
output externally. It can be used as a work bit.
3. Can be used only when Expansion I/O Units are connected.
Item Specifications
Control method Stored program control
I/O control
method
Cyclic scan
Programming
language
Ladder diagram
Program
capacity
96 lines (up to 3 inputs and 1 output per line)
Maximum No. of
control I/O points
CPU Units with 10 I/O points 34 points (with 3 Expansion I/O Units)
(See note 1.)
CPU Units with 20 I/O points 44 points (with 3 Expansion I/O Units)
Memory areas CPU Unit input bits (I) CPU Units with 10 I/O Points:
I0 to I5, 6 bits
CPU Units with 20 I/O Points:
I0 to Ib, 12 bits
CPU Unit output bits (Q) CPU Units with 10 I/O Points:
Q0 to Q3, 4 bits (See note 2.)
CPU Units with 20 I/O Points:
Q0 to Q7, 8 bits
Expansion I/O Unit input bits (X) X0 to Xb, 12 bits (See note 3.)
Expansion I/O Unit output bits (Y) Y0 to Yb, 12 bits (See note 3.)
Work bits (M) M0 to Mf, 16 bits
Holding bits (H) H0 to Hf, 16 bits
Button switches (B) B0 to B7, 8 bits
(not supported for LED-type CPU Units)
Timers (T) T0 to Tf, 16 timers
Holding timers (#) #0 to #7, 8 timers
Weekly timers (@) @0 to @f, 16 timers
(not supported for LED-type CPU Units)
Calender timers (*) *0 to *f, 16 timers
(not supported for LED-type CPU Units)
Counters (C) C0 to Cf, 16 counters
8-Digit Counter (F) F0, 1 counter
Display bits (D) D0 to Df, 16 bits
(not supported for LED-type CPU Units)
Analog comparator (A) A0 to A3, 4 comparators (CPU Units with
DC power supply only)
Comparator (P) P0 to Pf, 16 comparators
8-Digit comparator (G) G0 to G3, 4 comparators
Z211-E1-03.book Page 122 Friday, November 21, 2008 10:38 AM