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CHAPTER 8 FUNCTIONS
8
8.14 Logging Function
2. Check the places where the latest data and the oldest data are stored.
Those places can be checked in the following buffer memory areas.
•CH Head pointer (Un\G1090 to Un\G1093) ( Page 195, Appendix 2(40))
•CH Latest pointer (Un\G1098 to Un\G1101) ( Page 195, Appendix 2(41))
When data is collected 10001 times or more
3. Check the storage location when logging stops with CH Trigger pointer (Un\G1114 to Un\G1117).
When logging stops under the following conditions
•CH Logging points after trigger (Un\G1048 to Un\G1051): 6505 points
• Logging hold request: Performed at 3500th
(Because of the above condition, the hold location is determined as 5th.)
Latest data
Oldest data
1st data
2nd data
3rd data
4th data
5th data
6th data
9999th data
10000th data
CH Latest pointer : 5
CH Head pointer : 6
Ex.
Ex.
CH Latest pointer : 5
CH Head pointer : 6
CH Trigger pointer : 3500
Latest data
Oldest data
1st data
2nd data
3rd data
4th data
5th data
6th data
9999th data
10000th data
3499th data
3500th data
3501st data
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