REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK)
5 - 20
5
: Compatible, : Partial change required, × : Incompatible
Item
Description
Compat-
ibility
Precautions for replacement
QnA/QnAS series
MELSECNET/10 module
*1
Q series
MELSECNET/H module
*2
Transient transmission function
Transient
transmission function
Communicates only when communication requests are
issued between each stations.
(Communication using dedicated link instruction and GX
Works2/GX Developer.)
Routing function
Performs transient transmission to other stations of which
network No. are different.
Dedicated link
instruction
Performs communications with other station at desired
timing using dedicated link instruction.
ZNFR instruction and ZNTO
instruction cannot be used.
Change them to REMFR
instruction and REMTO
instruction.
Specification of
default network
Processes the requests that cannot specify network No.
of access path.
Clock setup for
stations on network
with peripheral
device
Performs clock setup to CPU modules connected to the
network with GX Works2 or GX Developer.
Multiplex transmission
function
Performs high-speed communication using duplex
transmission path (forward loop/reverse loop).
Reserved station function
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.
Multiplex master system
Allows the remote sub-master station to automatically
control the remote I/O stations in the case of the
multiplexed remote master station failure.
• The function is available only
when mounted on Q12PH/
Q25PH/Q12PRH/Q25PRH
CPU.
• The multiplexed remote
master station and the
multiplexed remote sub-
master station cannot be
mounted on the same
programmable controller
CPU.
Mount on separate
programmable controller
CPU.
Parallel master system Sets two remote master stations in the same network.
Cannot be configured on the
remote I/O network of
MELSECNET/H.
Configure two networks.
Settings of remote I/O
station output status in the
case of system failure
with programmable
controller CPU error
Retains the output status of the remote I/O station in the
case of the remote master station error.
Set the function with the PLC
parameter of the remote I/O
module.
To Next Page
Loading...
