Mitsubishi Electric Q80BD-J71GP21-SX User Manual page 170

12
APPLICATION FUNCTIONS
(7) Calculation of transmission delay time
(Routing transmission delay time) = (processing time from request source to relay station)
Personal computer
processing time of
request source
Link scan on request
source side
Link scan on request
target side
Sequence scan of
request target side
Remarks
12
- 14 12.1 Transient Transmission Function
12.1.2 Routing function
The processing time to access a station on another network using the MELSEC Data
Link Library functions in a multiple network system can be obtained by adding the
following transmission delay factors.
(a) Processing time from request source to relay station
This is the transmission delay time from the request source (the station that
executed the function) to the routing relay station. In the following example, it is
the time required for the data to be transmitted from station 1M
For the calculation of translation delay time, refer to the following manual.
CC-Link IE Controller Network Reference Manual
(b) Processing time from relay station to request target
This is the transmission delay time from the relay station to the request target (the
station to be accessed). In the following example, it is the time required for the
data to be transmitted from station 2M
For the calculation of translation delay time, refer to the following manual.
CC-Link IE Controller Network Reference Manual
Network No.1
1M 1 1N
P
Request
source
Function execution
When more than two networks are relayed using the routing function, add the
processing time from one relay station to the other relay station to the routing
transmission delay time.
+ (processing time from relay station to request target)
1 to station 2N
P
1N 3 2M 1
S P
Network No.2
2 2N 2 2N 3
S S S
Request
target
1 to station 1N
P
3.
S
Function completion
3.
S