REPLACEMENT OF THE MELSECNET/10 (PLC TO PLC NETWORK)
4 - 13
4
: Compatible, : Partial change required, ×: Incompatible
*1 Use GX Developer.
*2 Use GX Works2 or GX Developer.
Item
Description
Compat-
ibility
Precautions for replacement
QnA/QnAS series
MELSECNET/10 module
*1
Q series
MELSECNET/H module
*2
Simple dual-structured
network
Switches link data refresh target to the standby network
to continue data link when break causes error in regular
network.
×
For Universal model QCPU, the
simple dual-structured system
cannot be configured. Configure
a single network system.
Using SB/SW as user flag
Sends desired control data to all stations using user-flag
status (SW01F0 to SW01F3) without using link device.
Change UFSET, UFRST and
UFOUT instructions to a
sequence program that uses
the link relay and link register.
RAS function
Automatic return
function
Returns the station disconnected from data link to the
system when it goes to normal status and restarts data
link.
Loopback function
Keeps normal operation between operable stations by
disconnecting faulty area at error occurrence such as
cable break.
Prevention of station
failure by using
external power
supply
Prevents loopback due to shutdown of programmable
controller.
Station detach
function
Keeps normal operation between operable stations
except faulty stations and stations switched off.
Transient
transmission
available even if
programmable
controller CPU is in
error
Checks the errors for CPU modules of which a stop error
occurs, via network from GX Works2 or GX Developer.
Checking the
transient
transmission
abnormal detection
time
Checks error completion time, abnormal detection
network number and abnormal detection station number
of transient transmission.
Diagnostic function
Checks line conditions of the network and setting
conditions of the module.
Set diagnostic items for station-
to-station test and forward loop/
reverse loop test in GX Works2
or GX Developer network
parameters.
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