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128
Remote I/O Communications Characteristics
Section 7-1
CVM1- and CV-series PLCs (Synchronous Mode)
Minimum I/O Response
Time
The minimum I/O response time occurs with the I/O timing shown in the fol-
lowing diagram.
T
IN
:
The Input Slave's ON (OFF) delay (Minimum value: 0)
T
OUT
:
The Output Slave's ON (OFF) delay (Minimum value: 0)
T
RT-IN
:
The Input Slave's communications time/slave
T
RT-OUT
:
The Output Slave's communications time/slave
T
PLC0
:
The PLC's cycle time (instruction exe peripheral servicing)
Note
Refer to the information on each slave in
SECTION 5
to
SECTION 7
for
details on Input and Output Slaves' ON and OFF delay times. Refer to
7-1-2
CompoWay/F Communications Cycle Time and Refresh Time
and the Opera-
tion Manual for the PLC being used for details on the PLC's cycle time.
The minimum I/O response time (T
MIN
) is the total of the following terms:
T
MIN
= T
IN
+ T
RT-IN
+ 2 × T
PLC0
+ T
RT-OUT
+ T
OUT
PLC
T
PLC0
T
RT-OUT
T
OUT
T
IN
T
RT-IN+
T
PLC0
Cycle time
Master Unit
Input
Output
Periph-
eral ser-
vicing
Instruction
execution
Instruction
execution
Periph-
eral ser-
vicing
Periph-
eral ser-
vicing
Instruction
execution
Summary of Contents for EJ1 - 07-2008
Page 3: ...iv...
Page 19: ...xx...
Page 33: ...14 Initial Temperature Controller Settings Section 1 4...
Page 53: ...34 Wiring the Temperature Controllers Section 3 4...
Page 101: ...82 Ladder Programming Examples Section 4 6...
Page 143: ...124 Sending Explicit Messages Section 6 5...
Page 155: ...136 Message Communications Characteristics Section 7 2...
Page 163: ...144 Maintenance Section 8 2...
Page 189: ...170 Allocation Numbers for Configurators Manufactured by Other Companies Appendix B...
Page 197: ...178 Index...