Transmission Delay Time - Mitsubishi Electric MELSEC iQ-F Series User Manual

Transmission delay time

A transmission delay time includes an input transmission delay time and an output transmission delay time.
Input transmission delay time
The input transmission delay time means the following.
• Time between when a signal (RX) is input to the remote station and when a device of the master station turns on or off
• Time between when data (RWr) is input to the remote station and when the data is stored in a device of the master station
The formula for calculating the input transmission delay time (maximum) is shown below.
Input transmission
delay time (maximum)
SM: Sequence scan time (ms)
Ls: Link scan time (ms)
SS: Processing time required for the remote station to reflect the input (ms) (Refer to the manual for the remote station used.)
Output transmission delay time
The output transmission delay time means the following.
• Time between when a device of the master station turns on or off and when the output (RY) of the remote station turns on
or off
• Time between when data is set to a device of the master station and when the data (RWw) is output to the remote station
The formula for calculating the output transmission delay time (maximum) is shown below.
Output transmission
delay time (maximum)
SM: Sequence scan time (ms)
Ls: Link scan time (ms)
SS: Processing time required for the remote station to reflect the output (ms) (Refer to the manual for the remote station used.)
SM Ls SS (ms)
SM Ls SS (ms)
APPX
Appendix 5 Processing Time
A
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