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The minimum and maximum I/O response times are shown here, using as an
example the following instructions executed at the master and the slave. In this
example, communications proceed from the master to the slave.
Input
Output (LR)
Input
(LR)
Output
The following conditions are taken as examples for calculating the I/O response
times.
Input ON delay:
8 ms
Master cycle time:
10 ms
Slave cycle time:
14 ms
Output ON delay:
10 ms
Number of LR words: 64 words
Minimum I/O Response Time The C200HS responds most quickly under the following circumstances:
1, 2, 3...
1. The C200HS receives an input signal just prior to the input refresh phase of
the cycle.
2. The master to slave transmission begins immediately.
3. The slave executes communications servicing immediately after comple-
tion of communications.
Master
Input
point
Input
bit
CPU
processing
I/O refresh
Overseeing, communica-
tions, etc.
Cycle time
Input ON delay
One-to-one link
communications
Master to
Slave
CPU
processing
Slave
Instruction
execution
Instruction
execution
Instruction
execution
Instruction
execution
Output point
Output ON
delay
The minimum I/O response time is as follows:
Input ON delay:
8 ms
Master cycle time:
10 ms
Transmission time:
39 ms
Slave cycle time:
15 ms
+
Output ON delay:
10 ms
Minimum I/O response time:
82 ms
Maximum I/O Response Time The C200HS takes the longest to respond under the following circumstances:
1, 2, 3...
1. The C200HS receives an input signal just after the input refresh phase of the
cycle.
2. The master to slave transmission does not begin immediately.
I/O Response Time
Section 6-4
Содержание SYSMAC C200HS
Страница 1: ...Cat No W235 E1 05 C200HS SYSMAC Programmable Controllers...
Страница 2: ...C200HS Programmable Controllers Operation Manual Revised February 2002...
Страница 3: ...iv...
Страница 5: ...vi...
Страница 379: ...371 SR word Corresponding key s Bit 279 03 04 05 3 06 07 VER 08 09 Monitoring Operation and Modifying Data Section 7 1...
Страница 470: ...468 Programmer Program Date Page Word Contents Notes Word Contents Notes Data Storage...
Страница 471: ...469 Programmer Program Date Page TC address T or C Set value Notes TC address T or C Set value Notes Timers and Counters...