APPX
Appendix 9 Buffer Memory
241
A
Buffer memory details
The following shows how to read the list of buffer memory details.
Do not change the buffer memory set by system by a program or device test. Otherwise, unintended operation
may occur.
CC-Link IE Field Network Basic function
The details of buffer memory for the CC-Link IE Field Network Basic function are as follows.
Item
Description
Address
Buffer memory address of a C Controller module.
Name
Buffer memory name of a C Controller module.
Description
Description of the buffer memory of a C Controller module.
Set by (when to set)
The following shows the timing to set each device by the system and/or a user.
(Set by)
• S: Set by system.
• U: Set by user (by a program, engineering tool, GOT, or test function from an external device).
• U/S: Set by both user and system.
(When to set)
• Initial: Data is set only when initial processing is performed (e.g. powering ON the system, changing the operating
status from STOP to RUN).
• Status change
: Data is set when the status is changed for each refresh cycle.
• Status change
: Data is set only when the status is changed.
• At END processing: Set for every refresh cycle.
Address
Name
Description
Set by
(when to
set)
Un to G1024
Total number of connected stations
The total number of connected stations set in the parameter is stored.
(Range: 1 to 64)
S (initial)
Un\G1025
Reserved station specification status
The reserved station specification status of the slave station specified in
the parameter is stored. (0: Not specified, 1: Specified)
• b0: Reserved station specification status
• b1 to b15: Empty (fixed to 0)
S (initial)
Un\G1026 to
Un\G1029
Reserved station specification status of each
station
The reserved station specification status is stored with the following bit
pattern. (OFF: Other than the reserved station, ON: Reserved station)
The numbers in the figure indicate station numbers (1 to 64).
(Condition)
• Only the bit of the start station number turns ON.
• The status is not stored for the station numbers after the maximum
station number.
S (initial)
b15
b0
0
b1
b15
b0
G1026
16 15 14 13 12
5
4
3
2
1
~
32 31 30 29 28
21 20 19 18 17
~
48 47 46 45
37 36 35 34 33
~
64 63 62 61 60
53 52 51 50 49
~
44
G1029
G1027
G1028
Содержание MELSEC iQ-R C R12CCPU-V
Страница 1: ...MELSEC iQ R C Controller Module User s Manual Application R12CCPU V ...
Страница 2: ......
Страница 23: ...1 EXECUTING PROGRAMS 1 3 I O Access Timing 21 1 MEMO ...
Страница 32: ...30 3 MEMORY CONFIGURATION OF C Controller Module 3 4 Files MEMO ...
Страница 257: ...I 255 MEMO ...
Страница 261: ......