Logging files

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Joined: 09 Aug 2017, 12:50

Logging files

Post by oystein.jensen » 18 Oct 2017, 12:50

Good day,

Is it possible to open log files in another program than DAQ manager?

We have a very big log, where the 100k sample point limitation in DAQ manager is making going through the log a very lengthy process. If possible to open direct to excel or similar, we just need the raw data and don't have need for graph display of the signals.

Best Regards
Øystein Jensen

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Posts: 164
Joined: 24 Oct 2012, 20:59

Re: Logging files

Post by multicon24 » 19 Oct 2017, 12:27

Dear Jensen,

Yes, it is possible to read logged data from MultiCon with another program than DAQ Manager.
Excel can work with maximum 64k rows in one sheet, so it might not be a good solution.
How many exactly samples (rows) is in your data? If it's not much more over 100k we can consider preparing special DAQ Manager version for you, but much data may slow the computer significantly.
Other possibility is to read lodded data and process it on your own.
Here is a description how to reach current measurements, and logged data with any system (including PLC systems):

The instructions are available on device's internal web-server. Links below.


User can reach current measurements in 3 ways, protocols: HTTP, Modbus RTU, Modbus TCP.

Format describe is available in every device at page:
http://<<IP address>>/data_format.html#measurements

And here is how to get the data.
http://<<IP address>>/NetworkInterfaceDescription.html#current

2. Modbus RTU and TCP
Format describe and type of data is in the manual. The way how to read them is available in other documents regarding protocols Modbus TCP/RTU.
Tests may be performed with common free tools.

User can use one of the free programs available in the internet, i.e. command line program:
If user wants to read value of the channel #56 of MultiCon working at:
- 9600 kbps
Modbus RTU (or TCP)
- address 10
- COM 7 (or
he can read this as follows:

32-bit value of the channel 59 float register (744):
modpoll -t 4:float -f -0 -r 744 -m rtu -a 10 -b 9600 -p none COM7

32-bit value of the channel 59 integer register (1256):
modpoll -t 4:int -i -0 -r 1256 -m rtu -a 10 -b 9600 -p none COM7

Value of 16-bit ID register 21h:
modpoll -t 4 -0 -r 33 -m rtu -a 10 -b 9600 -p none COM7

32-bit value of the channel 59 float register 744:
modpoll -t 4:float -f -0 -r 744 -m tcp

32-bit value of the channel 59 integer register 1256:
modpoll -t 4:int -i -0 -r 1256 -m tcp

Value of 16-bit ID register
modpoll -t 4 -0 -r 33 -m tcp


Access to the logged data user can get via HTTP protocol.

Data format describe:
http://<<IP address>>/data_format.html

How to read the data:
http://<<IP address>>/NetworkInterfaceDescription.html

MultiCon technical specialist
Maciej Mitura

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