Buffer Memory - Mitsubishi MELSEC L Series User Manual
Communication module
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Also See for MELSEC L Series:
- User manual (418 pages) ,
- Programming manual (1296 pages) ,
- Reference manual (532 pages)
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3.3.6 Buffer memory
Address Dec. (Hex.)
Application
CH1
CH2
For LED and
0 (0
)
H
communication
error clear
1 (1
)
H
2 (2
)
H
3 (3
)
H
For Flash ROM
4 (4
)
H
5 (5
)
H
6 to 45 (6
to 2D
)
H
H
46 (2E
)
H
47 (2F
)
H
48 (30
)
H
49 (31
)
H
50 (32
)
H
51 (33
)
H
52 (34
)
For modem
H
functions
designation-1
53 (35
)
H
54 (36
)
H
55 (37
)
H
56 (38
)
H
3 - 33
The buffer memory (area shown with
is described.
Refer to the User's Manual (Basic) for the buffer memory not related to the modem
function.
POINT
The writing and reading of setting values to and from the buffer memory are
performed using the special utility package ("GX Configurator-SC") of the Q series
C24.
This section provides supplementary explanations on setting values used to
perform settings and monitoring with GX Configurator-SC.
(1) Buffer memory list
Communication error clear request for CH1 and to turn LED off
Communication error clear request for CH2 and to turn LED off
Register/read/delete directions
Frame No. direction
Register/read/delete result storage
access
Number of data bytes registration designation
User frame
Modem connection channel directions
0: None
Notification execution designation (
0: Does not execute
Number of connection retries designation
1 to 5: Number of retries
Connection retry interval designation
90 to 300: Connection retry interval (unit: s)
Initialization/connection timeout designation
1 to 60: Time out (unit: s)
Number of initialization retries designation
1 to 5: Number of retries
Data number for initialization designation
0
: Sends initialization data designated by the transmission user
H
frame designation area
7D0
to 801F
: Data No. for initialization
H
H
Data number for connection designation
BB8
to 801F
: Data number for connection
H
H
[When using Q series C24]
GX Developer connection designation
0: Does not connect
[When using L series C24]
MELSOFT connection designation
0: Does not connect
No-communication interval time designation
0
: Waits infinitely
1 to 120: Non-communication interval time (Line disconnection wait time)
(Unit: min)
RS · CS control yes/no designation
0: Does not control
3 COMMUNICATIONS BY THE MODEM FUNCTION
) that can be used with the modem function
Name
1: CH1
2: CH2
2)
1: Execute
1: Connects
1: Connects
1: Controls
Correspondence
Default
protocol
value
MC
Non
Bi
0
RW
0
RW
—
0
3
180
60
3
7D0
H
(2000)
RW
0
30
1
3 - 33
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