Mitsubishi QJ71LP21 Reference Manual page 135

5 PARAMETER SETTINGS
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3) With multiplex transmission (see Section 7.4)
Set this item when executing the multiplex transmission function.
The multiplex transmission function is used when both the forward and
reverse loops are in the normal status to speed up the transmission
rate using both loops at the same time.
This setting can be made when there are four or more remote I/O
stations.
• Default: No multiplex transmission
4) Secured data send/Secured data receive
Set these items when executing the link data separation prevention
per station in the cyclic transmission.
This allows multiple word data manipulation without interlocks.
However, the separation prevention
processing between the CPU module and the network module.
• Default: No setting for both send and receive
5) Transient setting
This setting cannot be changed for the remote I/O network.
"Maximum no. of transients in 1 scan"
The number of transient transmissions (total for one entire network)
that a single network can execute in one link scan.
• Default
"Maximum no. of transients in one station"
The number of transient transmissions that a single station can
execute in one link scan.
• Default
1: The separation prevention refers to a prevention of link data with
double word precision (32 bits), such as the current value of the
positioning module, from being separated into new data and old data in
one word (16 bits) units due to the cyclic transmission timing.
6) Link start designation
For future expansion. Cannot be set at present time.
1 is valid only for the refresh
: 2 times (fixed)
: 2 times (fixed)
MELSEC-Q
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