Omron ZEN - Differences between CPU Units

136
Version Upgrades Appendix D
Differences between CPU Units
Specifications
Note Refer to page 138 for details on compatible combinations of CPU Units and Expansion I/O
Units.
Item V2 CPU Units V1 and Pre-V1 CPU Units
Structure Heat dissipation slits removed. ---
Mounting direction Standard (Vertical) Installation and
Horizontal Installation
Standard (Vertical) Installation
Power supply voltage
for DC-input Models
10.8 to 28.8 VDC 20.4 to 26.4 VDC
Inrush
current
CPU
Units with
AC power
supply
4.5 A max. 40 A max.
CPU
Units with
DC power
supply
30 A max. 20 A max.
Time accuracy
±15 s/month (at 25°C) ±2 min/month
Internal
bits
Timers Twin operation added. ON delay, OFF delay, One-shot
pulse, and Flashing pulse operation
Weekly
timers
Multiple-day operation and pulse
operation added.
Only normal operation possible.
Additions 8-Digit counter (150 Hz, 1 counter)
8-Digit comparator
---
Daylight Saving Time
(DST)
Australia and New Zealand added. Manual, Europe, and America
LCD contrast
adjustment
Not required. Supported.
Menu displays Node number setting deleted. ---
Connectable
Expansion I/O Units
ZEN-8E1@ (See note.) ZEN-4E@ and ZEN-8E@
RS-485
communications
CPU Units with RS-485
communications added (ZEN-
10C4@R-@-V2).
None
Z211-E1-03.book Page 136 Friday, November 21, 2008 10:38 AM