Mitsubishi Electric Melsec Q Series User Manual page 94

3
SPECIFICATIONS
(5) Current tag data value (Buffer memory address: 1300 to 1811)
Single precision:
Double precision:
Character string:
3
- 35 3.6 Buffer Memory Details
3.6.8 Current tag data value area
(a) The current values of the tag components whose No. is specified with the No. of
requested tag (Buffer memory address: 1290) are stored.
(b) Two words are assigned per tag component.
(c) Data are stored as follows depending on the data type for the tag component.
Upper word
Floating point:
4th character
bit:
16-bit BCD:
32-bit BCD:
Figure 3.13 Data type of tag component
*1 When [Perform statistical processing] is set in [Device tag settings], data before the statistical
processing is stored.
*2 Only the first four characters are stored.
*3 Data before the BCD conversion is stored.
1300
Current value of
1301
tag component 1
1302 Current value of
tag component 2
1303
1810
Current value of
1811 tag component 256
Figure 3.12 Current tag data value area
0
Current value
Current value
3rd character 2nd character
0
0
Current value
Lower word
Current value *1
*1
*1
*2
1st character
0/1
Current value *1*3
*1*3