Manual FLOW 38 Page 39 (total 54) COMAC CAL s.r.o.
1) Datalogger
Power off and insert the expansion card into the available slot and fix it with an M3 screw.
Insert the prepared microSDHC card in the module after power on. After insertion, DATALOGGER
is created in SET menu of the meter automatically.
If the meter fails to switch to DATALOGGER menu after insertion, find out this item in SET menu. Now
you can set logging activation/deactivation and logging interval. Available units for the logging interval are
minutes or seconds.
If the card is accepted and there is a log file at the same time, the end of file is searched out and the data will
be added at the end of this file. While the end of file is searched, the number of searched and occupied clusters
is indicated in the left lower corner. The number of clusters in a file for searching is limited to 4096 (2MB).
If the log file is longer, a new one is established, incremented by 1.
The log file name is LOG00.TXT-LOG99.TXT
In the case of correct data write, WRITE is always indicated in the left lower corner for a moment.
If the microSDHC card is not accepted after logging is activated, an error message is displayed:
E:1 - GO_IDLE_STATE
E:2 - SEND_IF_COND
E:3 - ACMD41
E:4 - READ OCR
E:5 - no SDHC card
Requirements for microSDHC card:
1) The card must be SDHC type (cards with 4GB capacity and more)
2) File format must be FAT32
3) Cluster size must be 512B*
*Note
Cards larger than 2GB cannot be normally formatted to 512B clusters, so the card must be split into two
partitions where an active partition must always be lower than 2GB, formatted to FAT32 with 512B clusters.
The formatted card can be bought as accessory to the expansion module.
2) MBus
Power off and insert the expansion card into the available slot and fix it with an M3 screw.
After power off, connect the MBus communication line to terminals of the expansion module.
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