397
CQM1 Cycle Time and I/O Response Time Section 7-1
3. The slave executes communications servicing immediately after comple-
tion of communications.
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 CQM1 takes the longest to respond under the following circumstances:
1,2,3... 1. The CQM1 receives an input signal just after the input refresh phase of the
cycle.
2. The master to slave transmission does not begin on time.
3. Communications are completed just after the slave executes communica-
tions servicing.
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
I/O refresh
Overseeing, communica-
tions, etc.
Input ON delay
Master
Input
point
Input
bit
CPU
processing
Cycle time
Instruction
execution
Instruction
execution
Instruction
execution
Instruction
execution
Instruction
execution
Slave
Master to
Slave
Slave to
Master
Master to
Slave
CPU
processing
Output point
Output ON
delay
Instruction
execution
One-to-one link
communications
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