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Cycle Time and Time
Section 9-2
194
I/O Refresh Time for Typical
Special I/O Units
I/O refresh time is calculated statically. For Units with variable I/O refresh time
depending on the status, typical values are used. (e.g. The I/O refresh time for
the Position Control Unit (C200H-NC413) is 2.2 ms.)
Type
Unit name
Model
I/O refresh time per 1 Unit
Temperature Control Unit C200H-TC
@@@
2.6 ms
ASCII Unit
C200H-ASC02
1.8 ms
Analog Input Unit
C200H-AD001
1.0 ms
C200H-CT001-V1
High-speed Counter Unit
C200H-CT002
2.4 ms
C200H-NC111
C200H-NC112
2.2 ms
(4.0 ms when read)
Position Control Unit
C200H-NC413 4.3
ms
(5.5 ms when read/write)
C200H Special I/O Unit
PLC Link Unit
C200H-LK401
0.3 ms
CS/CJ-series Special I/O Unit Analog I/O Unit
CS1W-MAD44
0.2 ms
Calculating Cycle Time
An example of calculating the cycle time when only Basic I/O Units are
mounted.
Condition
Item Contents
96-point Input Unit
CS1W-ID291
4 Units
CPU Rack (for 8 slots)
96-point Output Unit CS1W-OD291 4 Units
96-point Input Unit
CS1W-ID291
4 Units
CS/CJ-series Expansion
Rack (for 8 slots)
×
1Unit
96-point Output Unit CS1W-OD291 4 Units
User program
5 k steps
LD 2.5 k steps, OUT 2.5 k steps
Minimum Cycle Time Proc-
ess
None
Peripheral servicing with
other Units (Special I/O Unit,
CPU Bus Unit, Inner Board,
and file access)
None
Calculation example
Process name
Calculation example
Processing
time
(1) Overseeing processing
−
0.5 ms
(2) Computing process
0.04
µ
s
×
2500
+
0.17
µ
s
×
2500
(The actual computing time var-
ies depending on execute/
non-execute.)
(0.53 ms)
(3) Calculating for Mini-
mum Cycle Time
(Minimum Cycle Time disabled)
0 ms
(4) I/O refresh
0.02 ms
×
8
+
0.02 ms
×
8
0.32 ms
(5) Peripheral servicing
−
0
ms
Cycle time
(1)
+
(2)
+
(3)
+
(4)
+
(5)
1.35 ms
Summary of Contents for CX-Simulator 1.9
Page 1: ...Cat No W366 E1 10 CX Simulator Ver 1 9 SYSMAC WS02 SIMC1 E OPERATION MANUAL...
Page 2: ......
Page 3: ...SYSMAC WS02 SIMC1 E CX Simulator Ver 1 9 Operation Manual Revised December 2009...
Page 24: ...xxv...
Page 30: ...xxxi...
Page 35: ...xxxvi...
Page 39: ......
Page 63: ...Comparison of the CX Simulator and SYSMAC CS CJ series PLCs Section 1 6 24...
Page 75: ...Installing and Uninstalling the Software Section 2 1 36...
Page 157: ...Task Debugging Section 4 4 118...
Page 195: ...Connection with Application Programs Section 7 2 156...
Page 225: ...Checking the Result Section 8 5 186...
Page 277: ...Other Functions Section 9 4 238...
Page 289: ...Other Tips for Troubleshooting Section 10 3 250...
Page 304: ......
Page 305: ......