Omron ZEN Operation Manual page 162

Version Upgrades
Compatible Combinations of CPU Units and Expansion I/O Units
The Expansion I/O Units that can be connected to V2 CPU Units are different from those
that can be connected to V1 CPU Units and previous CPU Units. Expansion I/O Units
with AC Inputs cannot be connected to V2 CPU Units with DC Power Supplies.
Expansion I/O Units cannot be connected to Economy-type CPU Units.
Version
V2 Standard LCD type
LED type
Communications type
Standard LCD type
LED type
Economy type
V1 and Pre-V1 Standard LCD type
LED type
Input Specifications
DC Inputs I0 to I3 on Units with 10 I/O Points, I0 to I9 on Units with 20 I/O Points
Item
Input voltage range
Input impedance
ON voltage
Input commons
DC Inputs I4 and I5 on Units with 10 I/O Points, Ia and Ib on Units with 20 I/O Points
Item
DC inputs Input voltage range
Input impedance
ON voltage
OFF voltage
Analog Input impedance
inputs
Accuracy
138
CPU Units
CPU Unit type
V2 CPU Units
10.8 to 28.8 VDC
5.3 k Ω
8 V
Independent common terminals
V2 CPU Units
10.8 to 28.8 VDC
5.2 to 5.5 k Ω
8 V
3 V
100 k Ω min.
± 1.5% FS (Within rated
ambient operating
temperature range)
Power
supply
AC ZEN-@C1AR-A-V2
ZEN-@C2AR-A-V2
ZEN-10C4AR-A-V2
DC ZEN-@C1D@-D-V2
ZEN-@C2D@-D-V2
AC ZEN-@C3AR-A-V2
DC ZEN-@C3DR-D-V2
AC ZEN-@C1AR-A-V1
ZEN-@C1AR-A
ZEN-@C2AR-A-V1
ZEN-@C2AR-A
DC ZEN-@C1D@-D-V1
ZEN-@C1D@-D
ZEN-@C2D@-D-V1
ZEN-@C2D@-D
V1 CPU Units
20.4 to 26.4 VDC
5 k Ω
16 V
V1 and Pre-V1 CPU Units
20.4 to 26.4 VDC
5 k Ω
16 V
5 V
150 k Ω min.
10% FS (Within rated
ambient operating
temperature range)
Appendix D
Supported
Expansion
Model
I/O Units
ZEN-8E1AR
ZEN-8E1DR
ZEN-8E1DT
ZEN-8E1DR
ZEN-8E1DT
Not
supported.
ZEN-4EA
ZEN-4ED
ZEN-4ER
ZEN-8EAR
ZEN-8EDR
ZEN-8EDT
Pre-V1 CPU Units
4.8 k Ω
Internally connected
to power supply
terminal