INTRODUCTION
Have you ever found yourself wishing you had an easy way to change a timer, counter or
data register value? How about, storing recipes, configurations or system setups in a
database on a personal computer and easily selecting and downloading one of them to a FX
series PLC? Or better yet, how about using a personal computer to start and stop your
machine, or troubleshoot your system, even if it’s hundreds of miles away? Look no
further because FXComm is a communication tool designed to answer those wishes and more!
FXCOMM OVERVIEW
FXComm allows the application developer to use the Microsoft Visual Basic programming
environment for the creation of Windows applications. These applications communicate with
the Mitsubishi FX PLC through the front programming port with or without a modem, and no
special function modules are required.
FXComm is capable of transferring information between one or more Mitsubishi FX series or
FXo programmable controllers and one IBM compatible PC using RS232 or RS422 single point
communications.
FXComm acts as a go between with Microsoft Visual Basic and the Mitsubishi PLC or PLCs.
FXComm transfers all major device types up to 30 times a second and imposes no limit on
communications ports (up to 99). There is no limit on the number of data points passed
between the PLC and the PC’s application. We repeat, there is no limit on the number
of data points!
Once FXComm is installed, all that is required to access the programmable controller's
internal devices is a simple statement, similar to assigning or retrieving the value of a
variable in memory. This method gives the application developer an intuitive way to create
an effective operator interface. An example of a simple operator interface is contained
within this document.
FXComm is a VBX or OCX file which is a special type of Windows DLL(Dynamic Link Library)
which integrates and becomes a part of the Visual Basic programming environment. This type
of DLL is commonly referred to as a Custom control or ActiveX control. This is the
tightest, and most intuitive integration possible with any application development
environment for Microsoft Windows.
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