Mitsubishi Electric MELSEC-A Series Manual page 186

5
REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK)
Item
Transient
transmission function
Routing function
Dedicated link
instruction
Specification of
default network
Clock setup for
stations on network
with peripheral
device
Multiplex transmission
function
Reserved station function
Multiplex master system
Parallel master system
Settings of remote I/O
station output status in the
case of system failure
with programmable
controller CPU error
5
- 20
Description
QnA/QnAS series
*1
MELSECNET/10 module MELSECNET/H module
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.
Performs communications with other station at desired
timing using dedicated link instruction.
Processes the requests that cannot specify network No.
of access path.
Performs clock setup to CPU modules connected to the
network with GX Works2 or GX Developer.
Performs high-speed communication using duplex
transmission path (forward loop/reverse loop).
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.
Allows the remote sub-master station to automatically
control the remote I/O stations in the case of the
multiplexed remote master station failure.
Sets two remote master stations in the same network.
Retains the output status of the remote I/O station in the
case of the remote master station error.
: 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.
• The function is available only
• The multiplexed remote
Cannot be configured on the
remote I/O network of
MELSECNET/H.
Configure two networks.
Set the function with the PLC
parameter of the remote I/O
module.
when mounted on Q12PH/
Q25PH/Q12PRH/Q25PRH
CPU.
master station and the
multiplexed remote sub-
master station cannot be
mounted on the same
programmable controller
CPU.
Mount on separate
programmable controller
CPU.