Mitsubishi FX3UC Series, Руководство пользователя

Страница: 319 / 458

313
FX
3UC
Series Programmable Controllers
User’s Manual - Hardware Edition
9 CC-Link/LT Built-in master ability (Only FX3UC-32MT-LT)
9.18 Details of buffer memory
1
O
utline
2
Exter
nal
D
im
en
sions
3
Ge
ne
ric
Speci
ficat
ions
4
Pow
er Suppl
y
Specif
icati
ons
5
Input Spec
ific
ations
6
O
utput
Specif
icat
ions
7
Exam
pl
es
of
W
iri
ng
fo
r
Va
rious U
ses
8
Te
rm
inal B
lock
9
CC
-L
in
k/L
T
Ma
ste
r F
X
3UC
(LT
only)
10
D
ispl
ay m
odule
FX
3UC
(L
T only)
9.18.9
Command [BFM #27 (1Bh)]
The command BFM gives the built-in master instructions to stop/restart the data link and write data to the
EEPROM.
1. Detailed description
A function is assigned to each bit of the buffer memory [BFM #27 (1Bh)]. Each function is executed according
to the 0 (OFF)/1 (ON) status of each bit.
1) Request to write to EEPROM (b4)
When this bit is set to ON, the contents of the detailed remote station information [BFM #32 (20h) to #95
(5Fh)] are written to the built-in EEPROM.
This write is unnecessary when reserved stations are not specified or when the detailed remote station
information is not edited.
The operation is as shown below.
2) Request to stop data link (b5)
Data link is stopped when this bit [BFM #27 (1Bh) b5] is set to ON while the data link is being executed.
The data link is restarted when this bit is set to OFF.
The operation is as shown below.
Bit Function Description
b0 to b3 - Prohibited to use
b4
Request to write to the
EEPROM
Writes the contents of the detailed remote station information [BFM #32 (20h)
to #95 (5Fh)] stored in the buffer memory to the built-in EEPROM when it is set
from OFF to ON.
After the write to the EEPROM is completed (completion is indicated when b4
of BFM #28 turns ON), set this bit to OFF.
b5 Request to stop data link
Stops data link when set from OFF to ON.
Restarts data link when set from ON to OFF.
b15 to b6 - Prohibited to use
Data is being written to the
EEPROM.
Set the write request flag to OFF after completion
of the write is confirmed.The write completion flag
turns OFF automatically.
Request to write EEPROM
[BFM #27 (1Bh) b4]
EEPROM write completion
[BFM #28 (1Ch) b4]
The L RUN is extinguished.
Request to stop data link
[BFM #27(1Bh) b5]
Data link stopped
[BFM #28(1Ch) b5]
The link is stopped. The link is restarted.
L RUN