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4-5
4 Monitoring and Computing the Cycle Time
CP1E CPU Unit Instructions Reference Manual(W483)
4-2 Computing the Cycle Time
4
4-2-3 I/O Refresh Times for PLC Units
(5) Peripheral Servicing
I/O Refresh Times for Built-in Analog I/O (NA-type CPU Unit only)
Note No matter whether use analog I/O function or not, the I/O refresh time is the same.
I/O Refresh Times for CP-series Expansion Units and Expansion I/O Units
Additional Information
The I/O refresh time for the built-in I/O of the CPU Unit is included in overseeing processing.
Operation Processing time and fluctuation cause
Services peripheral
USB port
In this servicing, 8% of the previous cycle’s cycle time (calculated in
step (3)) will be allowed for peripheral servicing.
Services serial port
(Built-in RS-232C
port, serial option
board)
4-2-3 I/O Refresh Times for PLC Units
Unit name Model numbers I/O refresh time per unit
NA-type CPU Unit 20-point I/O + Analog I/O
CPU Unit
CP1E-NA20D- 0.5 ms
Unit name Model numbers I/O refresh time per unit
Expansion I/O Unit 8-point Input Unit CP1W-8ED 0.14 ms
8-point Output Unit CP1W-8ER 0.06 ms
CP1W-8ET
CP1W-8ET1
16-point Output Unit CP1W-16ER 0.17 ms
CP1W-16ET
CP1W-16ET1
20-point I/O Unit CP1W-20EDR1 0.20 ms
CP1W-20EDT
CP1W-20EDT1
32-point Output Unit CP1W-32ER 0.33 ms
CP1W-32ET
CP1W-32ET1
40-point I/O Unit CP1W-40EDR 0.45 ms
CP1W-40EDT
CP1W-40EDT1
Expansion Unit Analog Input Unit CP1W-AD041 0.72 ms
Analog Output Unit CP1W-DA041 0.33 ms
Analog I/O Units CP1W-MAD11 0.36 ms
Temperature Sensor Unit CP1W-TS001 0.30 ms
CP1W-TS002 0.57 ms
CP1W-TS101 0.30 ms
CP1W-TS102 0.57 ms
CompoBus/S I/O Link Unit CP1W-SRT21 0.20 ms