Omron CP1H-CPU - 05-2006, Operation Manual

Page: 433 / 669

402
Analog I/O Units
Section 7-4
Main Analog I/O Unit
Specifications
Analog I/O Units are connected to the CP1H CPU Unit. Up to seven Units can
be connected, including any other Expansion Units and Expansion I/O Units
that are also connected.
Note (1) The conversion time is the total time for 2 analog inputs and 1 analog out-
put.
(2) With analog outputs it is possible to use both voltage outputs and current
outputs at the same time. In this case however, the total output current
must not exceed 21 mA.
CP1H CPU Unit
A maximum of 7 Expansion Units or Expansion I/O Units can be connected.
IN OUT
V O UT CO M I IN 1 V IN 2 CO M2
I O U T V IN 1 CO M1 I IN 2
MAD01
C H C H E X P
IN
00
C H
C H
02 04 06 08 10
OUT
01 C OM 03 05 07 09 11
C OM CO M C OM 03 CO M 06
00 01 02 04 05 07
00 01 02 03 04 05 06 07
08 09 10 11
20EDR1
C H 00 01 02 03 04 05 06 07
N C
N C
N C
C H
E X P
IN
00 02
01 C OM 03
C OM 05 07
04 06
C H 00 01 02 03
08 09 10 11
8ED
E X P
CPM1A-20EDR1
Expansion I/O Unit CPM1A-8ED
Expansion I/O Unit CPM1A-MAD01
Analog I/O Unit
1 analog output
2 analog inputs
Item Voltage I/O Current I/O
Analog
Input
Section Number of inputs 2
Input signal range 0 to 10 V/1 to 5 V 4 to 20 mA
Max. rated input
±
15 V
±
30 mA
External input impedance 1 M
Ω
min. 250
Ω
rated current
Resolution 1/256
Accuracy 1.0% full scale
A/D conversion data 8-bit binary
Analog
Output
Section
(See
note 2.) Number of outputs 1
Output signal range 0 to 10 V or
−
10 to 10 V 4 to 20 mA
Max. external output current 5 mA ---
Allowable external output load resistance --- 350
Ω
Resolution 1/256 (1/512 when the output signal range is
−
10 to 10 V)
Accuracy 1.0% of full scale
Set data 8-bit signed binary
Conversion time 10 ms max. per Unit (See note 1.)
Isolation method Photocoupler isolation between I/O terminals and PC signals.
No isolation between analog I/O signals.
Current consumption 5 VDC: 66 mA max., 24 VDC: 66 mA max.