CS1D-II102D Omron, CS1D-II102D Datasheet - Page 392

• Manufacturer Part Number: CS1D-II102D
• Description: CS1D Dual IO Interface Unit
• Manufacturer: Omron

Specifications of CS1D-II102D

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Calculation Example
9-4-9
I/O Interrupt Tasks
Computing the Cycle Time
Interrupt Response Times (Single CPU Systems Only)
Note
Conditions:
Minimum I/O response time = 1.5 ms + 20 ms + 0.2 ms = 21.7 ms
Maximum I/O response time = 1.5 ms + (20 ms 2) + 0.2 ms = 41.7 ms
The interrupt response time for I/O interrupt tasks is the time taken from when
an input from a CS1W-INT01 Interrupt Input Unit has turned ON (or OFF) until
the I/O interrupt task has actually been executed.
The length of the interrupt response time for I/O interrupt tasks depends on
the following conditions.
1. The software interrupt response time will be 1 ms if there is a C200H Spe-
2. I/O interrupt tasks can be executed (while an instruction is being executed,
The interrupt response time of I/O interrupt tasks is the sum of the Input ON
delay (0.2 ms max.) and the software interrupt response time (1 ms max.).
(Interrupt to CPU Unit)
Hardware response
Software interrupt response
cial I/O Unit in the PLC.
or by stopping the execution of an instruction) during execution of the user
program, I/O refresh, peripheral servicing, or overseeing. The interrupt re-
sponse time is not affected by the Input of the Interrupt Input Unit turning
ON during any of the above processing operations.
Some I/O interrupts, however, are not executed during interrupt tasks even
if the I/O interrupt conditions are satisfied. Instead, the I/O interrupts are
executed in order of priority after the other interrupt task has completed ex-
ecution and the software interrupt response time (1 ms max.) has elapsed.
Output
Item
Input
Input ON delay
Output ON delay
Cycle time
Maximum I/O response time
Cycle time
Input ON delay
Instruction
execution
Upward differentiation: 0.1 ms,
Downward differentiation: 0.5 ms
124 s
Cycle time
Instruction
execution
1.5 ms
0.2 ms
20.0 ms
Time
I/O refresh
Instruction
execution
Output ON delay
Section 9-4
357