M-system DL8 Series, Руководство пользователя

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111 DL8 USERS MANUAL EM-7691-B Rev.24
10. FTP CLIENT (TYPE B, C, D & E)
10.1 GENERAL DESCRIPTIONS
Data collected at a specified interval can be uploaded to an FTP server in CSV format by using the FTP client function.
FTP server DL8
.CSV
10.2 SPECIFICATIONS
PARAMETER DESCRIPTION
FTP Passive mode
FTPS Explicit mode
Channel Max. 32 channels (AI, DI, DI (counter), PI, DO, and AO)
Sampling rate
(synchronized with internal clock) 1 sec. / 2 sec. / 5 sec. / 10 sec. / 30 sec. /
1 min. / 2 min. / 5 min. / 10 min. / 15 min. / 20 min. / 30 min.
Transfer interval
(synchronized with internal clock) Sampling rate 1 or 2 sec.: Transferred every 1 min., 10 min. or 1 hour (selectable)
Sampling rate 5, 10 or 30 sec.: Transferred every 10 min. or 1 hour (selectable)
Sampling rate 1, 2, 5, 10, 15, 20 or 30 min.: Transferred every day (fixed)
Dateline can be specified.
File name User defined name using date/time of the leading sample.
Up to 64 characters (including the file extension) using:
[YEAR]; [MONTH]; [DAY]; [HOUR]; [MIN]; and/or [SEC].
e.g. DB[YEAR][MON][DAY].CSV to be transferred as DB20130304.CSV
Header User defined header can be added in comma-separated text strings (Up to 3 rows).
Column contents 1st column: Date/time (2013/03/04 15:00:00)
2nd and following columns: Data for 32 channels
AI, PI, AO: Engineering unit value
DI, DO: Text assigned to status
DI (counter): Count value
Data format AI, PI, AO: Engineering unit value
DI (counter): Count value
DI, DO: Text assigned to status
FTP file size Max. 1 MB per file
FTP retry Resent in 2 minutes after transmission failure.
Data is discarded with successful transfer.
Retried every 2 minutes until next scheduled transfer timing.
Data is discarded when the next timing comes.
Not retried with 1-minute transfer cycle. Data is discarded at transmission failure.
Behavior in correcting time • When adjusting the clock forward
DL8 continues storing data.
• When adjusting the clock backward for 10 sec. or more
DL8 creates a new file to store data again.
• When adjusting the clock backward within 10 sec.
DL8 waits until the clock reaches the time when the latest data was stored and
starts storing data.