Buffer Memory; Buffer Memory Assignment - Mitsubishi Electric MELSEC iQ-R Series User Manual

Section 5 BUFFER MEMORY
Section 5

BUFFER MEMORY

5.1

Buffer memory assignment

The following describes buffer memory assignment.
● In the buffer memory, do not write data to the "system area" or area where data writing is not impossible
from sequence programs.
Data writing to those area may cause malfunction.
(1) Configurable sections (Un\G0 to Un\G99)
Address
Item
(Decimal)
Setting 0 Phase wire system
value
1 Primary voltage
2 Primary current
3 Current demand time
4 Electric power demand time
5 Primary voltage of VT
6 Secondary voltage of VT
7 Primary current of CT
8 - 10 System area
11 Alarm 1 monitoring factor
12
Alarm 1 monitoring value
13
14 Alarm 1 reset method
15 Alarm 1 delay time
16 - 20 System area
21 Alarm 2 monitoring factor
22
Alarm 2 monitoring value
23
24 Alarm 2 reset method
25 Alarm 2 delay time
26 - 50 System area
51 Integrated value setting target
52
Integrated value setting value
53
54
System area
55
56 Max./min. values clear target
57 - 59 System area
60
Period of measured data acquisition clock
61
62 - 99 System area
*1: Even if the power failure is restored, data is held because data is backed up by the nonvolatile memory.
*2: For the procedure for using the test mode, refer to "3.4.5".
Table 5.1-1 Configurable sections (Un\G0 to Un\G99)
Description
Caution
Default
value
51
RE81WH
Output value
Back
R/W during the test
up *1
mode
3 R/W
○
2 R/W
○
2 R/W
○
120 R/W
○
120 R/W
○
0 R/W
○
0 R/W
○
0 R/W
○
- - -
0 R/W
○
0 R/W
○
0 R/W
○
0 R/W
○
- - -
0 R/W
○
0 R/W -1000
○
0 R/W
○
0 R/W
○
- - -
0 W
×
0 W
×
- - -
0 W
×
- - -
10 R/W
○
- - -
*2
3
2
2
120
120
0
0
0
-
5
1000
0
5
-
6
1
300
-
0
0
-
11
-
10
-