Comparison Of Control Network Module Functions; Cc-Link Ie Controller Network Module - Mitsubishi Electric MELSEC-Q Series Migration Manual
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9.3
Comparison of Control Network Module Functions
CC-Link IE Controller Network module
QJ71GP21(S)-SX and RJ71GP21(S)-SX
■Cyclic transmission
: Compatible/function available : Partly changed : Incompatible/function not available : Not applicable
Item
Communication using LB/LW
Additional LB/LW setting (LB/LW
settings (2))
Send points extension
Communication using LX/LY
Refresh
Direct access to link devices
Assurance of cyclic data integrity
Cyclic transmission punctuality
assurance
Constant link scan
Group cyclic transmission
Increase of send points by
mounting multiple network
modules of the same network
number
Reserved station specification
Interlink transmission
Stop/restart of cyclic transmission
9 CONTROL NETWORK MODULE MIGRATION
334
9.3 Comparison of Control Network Module Functions
Description
Allows each station to write data to its own send range of a
link device (LB/LW) to send them to all other stations on the
network.
Without changing the assignments in LB/LW settings (1),
extends each station's send range.
Extends the maximum send points of each station.
Used to exchange data between the I/O master station that
controls LX/LY and another station on a one-to-one (1:1)
basis.
Allows automatic data transfer between the link devices of
the CC-Link IE Controller Network module and CPU
module devices.
Directly reads from or writes to link devices (LB/LW/LX/LY/
SB/SW) of the CC-Link IE Controller Network module from
the sequence program.
Assures the cyclic data integrity in increments of 32 bits or
stations.
Keeps the link scan time constant by making each station
to send the specified number of transient transmissions
within one link scan.
Keeps the link scan time to a preset time period.
A Universal model QCPU can share cyclic data only with
stations in the same shared group.
It does not receive cyclic data from stations in a different
shared group.
Stations without shared group setting will share cyclic data
with all stations.
Increases send points by mounting multiple CC-Link IE
Controller Network modules of the same network number
with one CPU module.
Used to reserve a station that will be connected to the
network in the future (although the station is not actually
connected at present, it must be included in the total
number of stations for the network). Reserved stations are
not detected as faulty.
Transfers link device (LB/LW) data of a network module to
another network module at a relay station.
Disables receiving data from other stations and sending
data of its own station in a case such as debugging.
(Transient transmission is not stopped.)
MELSEC-Q
MELSEC iQ-R
series
series
QJ71GP21(S)-
RJ71GP21(S)-
SX
SX
Precautions
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