Omron ZEN - Page 161

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Version Upgrades Appendix D
Memory Areas
Note Output bit Q3 of CPU Units with communications cannot be output externally.
Area CPU Unit
V2 CPU Units V1 CPU Units Pre-V1 CPU
Units
10-point 20-point 10-point 20-point 10-point
CPU Unit input
bits (I)
6126126
CPU Unit output
bits (Q)
4 (See note.) 8 4 8 4
Timers (T) 16 8
Holding timers
(#)
84
Counters (C) 16 8
Weekly timers
(@)
16 8
Calendar timers
()
16 8
Displays (D) 16 8
Work bits (M) 16
Holding bits (H) 16
Expansion I/O
Unit input bits
(X)
12
Expansion I/O
Unit output bits
(Y)
12
Analog
comparators (A)
4
Comparators (P) 16
8-Digit counter
(F)
1---
8-Digit
comparator (G)
4---
Z211-E1-03.book Page 137 Friday, November 21, 2008 10:38 AM