RMG TME400-VMF User Manual

APPENDIX
MANUAL TME400-VCF · EN08 · July, 01
st
2021
108
Content of the header after the writing of the second archive entry:
Content
Data type
Value
Position number of the next archive
UINT16
2
Index of the oldest entry
UINT16
0
Index of the newest entry
UINT16
1
CRC16
UINT16
xxxxh
Content header after the writing of the 300
th
archive entry (archive full):
Content
Data type
Value
Position number of the next archive
UINT16
300
Index of the oldest entry
UINT16
0
Index of the newest entry
UINT16
299
CRC16
UINT16
xxxxh
Content header after the writing of the 301
st
archive entry
(archive full, oldest entry overwritten in the ring buffer):
Content
Data type
Value
Position number of the next archive
UINT16
301
Index of the oldest entry
UINT16
1
Index of the newest entry
UINT16
0
CRC16
UINT16
xxxxh
Procedure for determining the indexes to be read in the archive:
• Reading all four archive headers of an archive type
• Recognizing the current header
• Determine the range to be read:
If "Index oldest entry" = FFFFh and
"Index newest entry" = FFFFh, then the corresponding archive is empty
If "Index oldest entry" = 0 and "Index newest entry" = 0, then
the archive contains an entry
• If "Index oldest entry" < "Index newest entry", then the
Number of entries = "Index newest entry" - "Index oldest entry" + 1
• If "Index oldest entry" > "Index newest entry", then the
No. of ent. = max. archive ent. - "Index older ent." + "Index newest ent." + 1
(Archive is always full: Number of entries = Maximum archive entries,
Calculation for the purpose of completeness only)

RMG TME400-VMF Specifications

General

Brand	RMG
Model	TME400-VMF
Category	Measuring Instruments
Language	English