Restrictions On System Configuration - Omron CP1H CPU Operation Manual

System Configuration
1-2-4

Restrictions on System Configuration

Number of Units CP1H-X40DR-A
Input words ---
Output words ---
Current 5 V 0.420 A
consump-
tion
24 V 0.070 A
5 V × 0.762 A = 3.81 W
Power con-
sumption
24 V × 0.394 A = 9.46 W
The following restrictions apply to the CP-series Expansion Units, CP-series
Expansion I/O Units, and CJ-series Units that can be connected to CP1H
CPU Units.
■
Number of Expansion Units and Expansion I/O Units Connected
A maximum of seven Units can be connected. If eight or more Units are con-
nected, an I/O UNIT OVER error will occur and the PLC will not operate.
■
Number of Words Allocated
The total number of either input or output words allocated to Expansion Units
and Expansion I/O Units must be no more than 15. Even if no more than
seven Units are connected, an I/O UNIT OVER error will be generated if 16 or
more input or output words are allocated.
■
Current Consumption
The total combined current consumption of the CP1H CPU Unit, Expansion
Units, Expansion I/O Units, and CJ-series Units must be no more than 2 A for
5 V and 1 A for 24 V and the total power consumption must be no more than
30 W. For CPU Units with AC power supply, the current consumption from
external 24-VDC power supply output must be included.
■
Number of CJ-series Units Connected
No more than two CJ-series Special I/O Units or CPU Bus Units can be con-
nected to the CP1H via a CJ Unit Adapter. No CJ-series Basic I/O Units can
be connected.
Example: Calculating the Limit on the Number of Connected Units
In this example, because each CPM1A-TS002 Temperature Sensor Unit is
allocated four input words, no more than three of these Units can be con-
nected. (Three Units × four words = 12 words.) After these have been con-
nected, there remain unallocated three input words and 15 output words. The
following table provides an example of Units that can be mounted in combina-
tion without exceeding these limits.
Combination Example
TS002 × 3 + TS001 × 1
4 words × 3 Units 2 words × 1 Unit
= 12 words = 2 words
0 words 0 words
0.040 A × 3 0.040 A × 1
= 0.120 A = 0.040 A
0.059 A × 3 0.059 A × 1
= 0.177 A = 0.059 A
■
Restrictions on the number of simultaneously ON output points
CP1W-32ER/32ET/32ET1's maximum number of simultaneously ON points is
24 (75%).
+ 20EDT × 1 + 8ER × 2
1 word × 1 Unit
0 words
= 1 word
1 word × 1 Unit 1 word × 2 Units
= 1 word = 2 words
0.130 A × 1 0.026 A × 2
= 0.130 A = 0.0520 A
0.044 A × 2
0 A
= 0.088 A
Section 1-2
≤ 7 Units
Total: 7 Units
Total: 15 words ≤ 15 words
≤ 15 words
Total: 3 words
≤ 2 A
Total: 0.762 A
≤ 1 A
Total: 0.394 A
Total: 13.27 W ≤ 30 W
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