Fllog is a data logger for up to 2 Gbytes of data using CompactFlash memory cards.
With Fllog any embedded system can log its data easily, for a very long period, and readable by a PC. 


Fllog automatically recognizes CompactFlash memory cards, their size, formats the disk, creates a Msdos compatible file system, and creates files to store the data into it. When switching power on, or changing the memory card, new data will be appended to the files. Stored data can be read on a PC using a simple CompactFlash adapter. The memory card appears as a removable disk to the PC. All data from the Rs232 is in a single file, analog data in another file on the disk. 


Storing data from analog or digital inputs
Fllog E has 8 inputs. Fllog F has 16 inputs. Each input can be configured as analog, digital, or counter. Fllog samples these inputs regularly and stores them on the disk in a file.
Storing incoming data from Rs232 


All data coming in from the serial Rs232 interface will be stored on the disk in a file. A data frame from the Rs232 is any consecutive data until there is a gap of at least 0.5 seconds. Fllog can be configured to add a time stamp (yyyy:mm:dd hh:mm:ss) in front and/or at the end of a data frame.
Remote Control (Fllog F) 


Fllog F can be completely controlled by a modem: Verify state, change configuration, disk handling, upload logged data. Each input has a min and a max threshold. When the input violates a threshold, an alarm occurs. An alarm may toggle a relay, write a message into a disk file, call a centre using a phone, or send an SMS, using a GSM modem. You may define a command macro, that calls a centre, or sends an SMS each hour, day, or once a week.

Fllog is available as board or in a housing to be mounted on a DIN rail.
Fllog includes all tools to write your own firmware: C compiler, firmware source, downloader.

  • Configurable
  • Stores data from analog or digital inputs
  • Fllog E: 8 inputs 0-2.56V or 0-20 mA, 10 bit resolution
  • Fllog F: 16 inputs 0-2.5V or 0-20 mA, 16 bit resolution
  • Fllog F: Each input can read a thermocouple type K (50°C to 1300 °C) including cold junction compensation
  • Fllog F: Each input can read a PT100 (-200°C to +850 °C)
  • Digital inputs, 0/5V
  • Counter up to 500 Hz
  • Input options
  • RC filter
  • Voltage divider for higher voltages
  • Sample rates from 1 millisecond to 24 hours
  • Stores incoming data from Rs232
  • Baud rates from 300 to 115200 baud
  • High speed, no need for flow control
  • Optional timestamp at the beginning or the end of a frame.
  • Supports data from GPS
  • Remote Control (Fllog F)
  • By modem: Verify state, change configuration, disk handling, upload logged data.
  • By SMS, GSM modem: request state.
  • Alarm: Toggle relay, store message in disk file, call centre using a modem, send SMS using a GSM modem.
  • Each hour, day, once a week: call centre, send SMS
  • 2 solid state relays (60V, 150 mA)
  • Msdos/ Windows compatible file system
  • Very easy to use
  • Power supply 6..16 V unregulated typ 50mA. 100x86x25mm or 105x90x60 mm
  • Power reduction mode: 50 µA
  • Temp -20°C..70°C, hum. 0..90% non condensing
  • RoHS conform

Fllog stores some analog inputs: 2003:07:24 11:56:30:315 109 789 833 1020 911
Incoming data from Rs232: machine error 51
Fllog adds optional timestamp 2003:07:24 11:56:30 machine error 51
When the data frames follows a certain format, PC utility program Fdata (included) can be used to visualize the data on the PC.