Mitsubishi Electric MELSEC iQ-R Series User Manual page 181

For a multi-network system
The following shows the cyclic transmission delay time for the case where link device data are transferred to another network
with the interlink transmission function.
TD [ms] = KM4  (LB  16 + LW)
The meaning of the variables in the equation are as follows.
Variable Meaning
TD Transmission delay time
LB Total number of LB points set using "Interlink Transmission Settings" in "Application Settings"
LW Total number of LW points set using "Interlink Transmission Settings" in "Application Settings"
The meanings of the constants (KM4) in the equation are as follows.
Base unit to which the network module is mounted
Transfer source
Main base unit
Main base unit
Extension base unit
Extension base unit
For the calculation formula used for the relay station that is configured with other module than that of the
MELSEC iQ-R series, refer to the manual of the relay target module.
Precautions
The interlink transmission time may become longer due to the following causes.
• Communication with the engineering tool (such as MELSECNET diagnostics or module diagnostics)
• Execution of a link dedicated instruction
• Link refresh
• Interlink transmission between other units
Transfer destination
Main base unit
Extension base unit
Main base unit
Extension base unit
-3
KM4(10 )
0.470
0.478
0.483
0.489
APPX
Appendix 6 Processing Time
A
179