Functional Comparisons - Mitsubishi Electric MELSEC-A Series Manual

5
REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK)

5.1.3 Functional Comparisons

(1) A/AnS series
Item
Communicating with
I/O module
Communicating with
special function
module
Data link stop/restart
function
N:N communication
function
Routing function
Reserved station function
I/O assignment function
Constant link scan
function
Multiplex
transmission function
Return sequence
station number
setting function
ZNFR/ZNTO
instruction access
number setting
function
*1 Use GX Developer.
*2 Use GX Works2 or GX Developer.
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Description
A/AnS series
*1
MELSECNET/10 module MELSECNET/H module
Performs communications with the I/O module of the
remote I/O station using X/Y (LX/LY).
Performs communications with the special function
module of the remote I/O station using X/Y (LX/LY) and
B/W (LB/LW).
Stops cyclic transmission temporarily with GX Works2 or
GX Developer.
Communicates only when communication requests are
issued between each stations.
(Communication using dedicated link instruction and GX
Works2/GX Developer.)
Performs transient transmission to other stations of which
network No. are different.
Treats the stations, which are to be connected in the
future, as reserved stations.
By specifying the stations, which are not connected, as
reserved stations, communication error does not occur.
Sets the module configuration of the remote I/O station.
Keeps link scan time constant.
Performs high-speed communication using duplex
transmission path (forward loop/reverse loop).
Sets the number of stations that can return to system
during one link scan.
Sets the number of transient transmissions (a total of
entire one network) that can be executed during one link
scan.
: Compatible, : Partial change required, × : Incompatible
Compat-
Q series
Precautions for replacement
ibility
*2
ZNFR instruction and ZNTO
instruction cannot be used.
Change them to REMFR
instruction and REMTO
instruction.
Set the function with the PLC
parameter of the remote I/O
module.
The number of transient
transmissions differs depending
on the total number of slave
stations. The number of
transient transmissions per
slave station is equal.
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