Hello,
I have the following hardware Setup.
PLC: AXL F 1152
Analog Module: AXL F AI4 I 1H
Is the PLC fast enough to read all 4 channels with an sampling rate from 100Hz and write it in an databse?
Best regards
Fabian
Hello Fabian,
the sampling rate of 100Hz corresponds to 10ms Cycle-Time. Yes, it is possible to read all 4 channels with an sampling rate of 100Hz and write it in an databse.
System-Data:
Supported cycle time AXL F 1152: 1ms
Resolution A/D converter: 16 Bit
AD-Converter: 31,25 µs
AXIO-Bus: 100 MBit/s
BR Eduard
Thanks!
Crazy someone asked this only 2 days ago… I’m also looking at this same topic.
Slight difference is I’m using the AXL SE AI4 U 0-10 which has 12 bit A/D converter resolution. I also do have an SPLC1000 attached. I also have 8 total smart elements on my AXIO-bus.
It is taking me 50ms to get updates from the sensor I have attached according to the logic analyzer tool. I’m definitely getting through my main.st program fast enough. It is on a 6ms interval.
Below is a sample of data. You can mostly ignore the y axis, after reading in the raw analog value, I convert it to a real and multiply it by a constant.
Hi! I think, you does not configure bus update trigger, and it use it’s default update rate.
BR
BR, you are totally right, can’t believe I didn’t know about this ! Glad I know now…