Mitsubishi MELSEC iQ-F, User Manual

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144
APPX
Appendix 4 Buffer Memory Areas
CH1 Trigger pointer
In CH1 Logging data (Un\G10000 to Un\G19999), the buffer memory address where the data at the time of a hold trigger
event is stored can be checked.
The difference between the buffer memory address where the data at the time of a hold trigger event is stored and the start
address in CH1 Logging data (Un\G10000 to Un\G19999) is stored.
For details on the logging function, refer to the following.

Page 59 Logging Function
■
Buffer memory address
The following shows the buffer memory address of this area.
When 'CH1 Logging hold request' (Un\G471) is turned on → off, 'CH1 Trigger pointer' (Un\G437) is cleared to
0.
CH1 Logging cycle monitor value
This area stores the actual logging cycle which is calculated from the refreshing cycle of data to be logged.
When 'Operating condition setting request' (Un\G70, b9) is turned off
→
on
→
off, the actual logging cycle is stored in Logging
cycle monitor value in the corresponding channel where the logging function is enabled.
For details on the logging function, refer to the following.

Page 59 Logging Function
The following values are stored in 'CH1 Logging cycle monitor value' (Un\G441 to Un\G442).
■
Buffer memory address
The following shows the buffer memory address of this area.
Buffer memory name CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8
CH

Trigger pointer 437 637 837 1037 1237 1437 1637 1837
CH  Trigger pointer (In FX2N allocation mode function) 9061 9062 9063 9064 9065 9066 9067 9068
Buffer memory name CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8
CH  Logging cycle monitor value (s) 441 641 841 1041 1241 1441 1641 1841
CH  Logging cycle monitor value (ms) 442 642 842 1042 1242 1442 1642 1842
CH  Logging cycle monitor value (s) (In FX2N allocation
mode function)
9071 9074 9077 9080 9083 9086 9089 9092
CH

Logging cycle monitor value (ms) (In FX2N allocation
mode function)
9072 9075 9078 9081 9084 9087 9090 9093
b15 b0
s
ms
to
'CH1 Logging cycle monitor value (s)' (Un\G441)
'CH1 Logging cycle monitor value (ms)' (Un\G442)