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REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK)
5
: Compatible, : Partial change required, × : Incompatible
(2) Comparison with QnA/QnAS series
: Compatible, : Partial change required, × : Incompatible
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Item
Description
Compat-
ibility
Precautions for replacementA/AnS series
MELSECNET/10 module
Q series
MELSECNET/H module
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.
Station detach
function
Keeps normal operation between operable stations
except faulty stations and stations switched off.
Diagnostic function
Checks line conditions of the network and setting
conditions of the module.
• Substitute the forward loop/
reverse loop test for the
station-to-station test.
• Set diagnostic items for
station-to-station test and
forward loop/reverse loop test
in GX Works2 or GX
Developer network
parameters.
Blown fuse error and
input/output
verification error
check disabled
function
Sets the error check of the blown fuse error and the input/
output verification error.
Set the function with the PLC
parameter of the remote I/O
module.
Item
Description
Compat-
ibility
Precautions for replacement
QnA/QnAS series
MELSECNET/10 module
*1
Q series
MELSECNET/H module
*2
Cyclic transfer function
Communicating with
I/O module
Performs communications with the I/O module of the
remote I/O station using X/Y (LX/LY).
Communicating with
special function
module
Performs communications with the special function
module of the remote I/O station using X/Y (LX/LY) and
B/W (LB/LW).
Cyclic transmission
stop/restart
Stops cyclic transmission temporarily with GX Works2 or
GX Developer.
Direct access to the
link devices
Reads/writes directly from/to link device of the network
module on the sequence program.
Default of network
refresh parameter
Eliminates the refresh parameters setting by using
default values of refresh parameters.
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