User`s guide

Table Of Contents
Communication
Mitsubishi Electric, MA00759F 225
17.4 Passthrough Mode
With the Passthrough mode function it becomes possible to set the operator panel in
a mode which enables communication between the configuration tool for the
connected controller on a PC and the controller to be established through the oper-
ator panel. This is a joint function with the Transparent mode function and in sim-
ilarity with Transparent mode only supports one controller. This means that
Transparent or Passthrough mode can only be used on one of the operator panel’s
communication ports. When Passthrough mode is activated and the PC communi-
cates with the controller through the operator panel, communication between the
operator panel and connected controller will stop. This is the difference between
Passthrough and Transparent mode. An operator panel where communication in
Passthrough mode is in progress becomes locked for the operator, and only shows an
empty display with the text Passthrough.
Operator panel connected to the programming port.
Passthrough mode for one of the connected controllers is activated and deactivated
from the program HMI Tools Connect, which is available as an icon in the program
group HMI Tools. See the manual for HMI Tools.