User`s guide

Table Of Contents
Communication
Mitsubishi Electric, MA00759F 229
No protocol on signal
A digital signal for switching between No protocol mode and Transparent mode, for
example to dial up a computer and send a message.
In the Peripherals dialog, drag the unit No protocol mode to the communication
port to use. Right-click on No protocol mode and select Properties to define which
register is to be the first control register in the transfer area. This and the five
following registers are used as control registers.
The controller can switch between No protocol mode and Transparent mode while
operating. Specify a digital signal for the parameter No protocol signal.
Ctrl reg 0
Ctrl reg 1
Ctrl reg 2
Ctrl reg 3
Register r0
Register r1
Register r2
Reception data buffer
Transmission data buffer
Control block
Register t0
Register t1
Register t2
.
.
.
.
.
.
Register t0
Register r0
Number of bytes
Data
Number of bytes
Data