User`s guide

Table Of Contents
Network Communication
Mitsubishi Electric, MA00759F 269
Passthrough Mode through Ethernet
With the program HMI Tools Connect (an icon in the program group HMI Tools)
it is possible to activate/deactivate a communication port for communication in
Passthrough mode (Transparent mode if this is supported by the drivers, see the chap-
ter Communication). For the function Passthrough mode (see the chapter
Communication) to function with communication through Ethernet (the TCP/IP
protocol), the following requirements must be fulfilled.
If the configuration tool for the controller does not support project transfer
through TCP/IP, a PC program to convert the COM port to TCP/IP must be
used in the PC which is to communicate with the controller in Transparent mode
through the TCP/IP network.
For further information, please see the sections Transparent Mode and Passthrough
Mode, the manual for HMI Tools and the manuals for the used drivers.
No Protocol Mode
The function No protocol mode, when one or more operator panels are used as com-
munication interface (see the chapter Communication), is not recommended in a
large operator panel network (BDTP network). A large network refers to a BDTP
network, where a large number of signals are transferred between server and clients.
Control registers and control signals are transferred when the operator panel is used
as a communication interface, and these influence the communication time and ad-
versely affect the performance of the network. See the Efficient Communication.
Packaging of Signals
To make the communication between operator panels and controllers quick and
efficient, e.g. in a network, it is important to optimize the transfer of signals in the
network. Read the chapter Efficient Communication and carefully follow the rules
described there to optimize the network functionality in the operator panels. This ap-
plies to all stations in the operator panel network. If the packing of signals is not used,
this may result in an increase in the updating times.