Parameter Setting; Procedure From Parameter Setting To Data Link Startup; Relationship Between Buffer Memory And Internal Memory; Procedure From Parameter Settings To Data Link Startup With Buffer Memory - Mitsubishi FX3U User Manual

FX -16CCL-M User's Manual
3U
8.

Parameter Setting

This chapter describes the parameter settings required in order to execute data link in the CC-Link system.
8.1

Procedure from Parameter Setting to Data Link Startup

This section describes the flow from parameter setting to data link startup.
8.1.1

Relationship between buffer memory and internal memory

This subsection describes the relationship between the buffer memory and the internal memory in the master
station.
1) Buffer memory
This is a temporary storage area to write parameter information to the internal memory.
Write the parameter information to the buffer memory using a sequence program.
When the power of the master block is turned off, parameter information is erased.
2) Internal memory
Data link is executed using the parameter information stored in the internal memory.
When the power of the master block is turned off, parameter information is erased.
8.1.2

Procedure from parameter settings to data link startup with buffer memory

Follow the procedure below from parameter settings to data link startup:
Procedure 1
Write the data (such as the
number of connected
modules and the number of
retries) to the buffer
memory "parameter
information area" in the
master station.
Procedure 2
By the write request for data
link startup by buffer memory
parameters (BFM#10 b6), the
contents of the buffer
memory "parameter
information area" are written
to the internal memory.
Then the data link
automatically starts.
80
8.1 Procedure from Parameter Setting to Data Link Startup
PLC
TO
PLC
SET M
BFM#10 b6
Master station
Buffer memory
Parameter Internal
information area memory
Master station
Buffer memory
Parameter Internal
information area memory
8 Parameter Setting