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OVERVIEW
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(5) Supporting Ethernet functions for more reliability, high speed
communication and flexible system construction
The following Ethernet functions are supported for more reliability, high speed
communication and more flexible system construction.
(a) KeepAlive function
The status of communication with the target device where a TCP
connection has been established can be checked.
When communication is not made for a given period of time between the
QJ71MT91 and the open target device, the QJ71MT91 checks the target
device for existence and cuts off unnecessary TCP connections.
(b) 100 Mbps high-speed communication
Supporting 100BASE-TX, the QJ71MT91 can make 100Mbps high-speed
communication.
(c) Router relay function
Communication can be made with a MODBUS/TCP device via a router.
(6) Ease of setting with utility package
The optional utility package (GX Configurator-MB) is available.
Though not required, the use of the utility package allows on-screen initial
settings (basic parameters, automatic communication parameters, MODBUS
device assignment parameters) and auto refresh settings, reducing sequence
programs and also facilitating the confirmation of the setting and operating
statuses. ( 1)
1: It is recommended to use the utility package with the QJ71MT91.
By making various parameter settings with the utility package,
communication can be made without sequence programs.
MELSEC-Q
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