Recent content by mhafele

when I run the script I get this: mhafele@PI3:~/megaind-rpi/rtc $ ./set_time.sh Network time not present use the RTC date: invalid date ‘MEGA-IND id 0 not detected’

Thanks for the info Alex. I'm back looking at this. My application (running node red on a PI4) will be running with no outside internet connections. I think I can figure out how to update the PI time with the node red dashboard (haven't tried it yet) but how then do I utilize the real...

I'm using the industrial I/O board along with a node red interface in a remote application where there is no internet access (maple syrup collection and processing). In my node-red application I use influx db and graphana locally to track and trend temperatures and flows. I just realized...

I looked at it again this morning and realized I had 24vdc on the loop power but didn't have 24vdc on the main power input to the board. after I did this every looks to be correct

Tested all 4 4-20ma input channels. I had similar results on all of them. Does it matter that I'm using an external power source at 24VDC?

I put a meter in the loop of input to output 4 (in to node red output block) - 4.03mA (meter) - 4.106 on node red input 8 - 8.04mA - 8.18 12 - 12.05mA - 12.425 16 - 16.01 mA - 14.201 20 - 16.28mA - 14.25

I ran the 4-20 mA analog outputs with Node-Red and measured with a meter: 4 (in node-red block) - 4.03mA on meter 8 - 8.04mA 12 - 12.05mA 16 - 16.04 mA 20 - 16.5 mA I ran the reset command on the 4-20mA output and had the same result. I ran the reset calibration on the 4-20mA input. Now...

The card is V3.1 (if that is the info you are referring to). My first thought was a bad meter as well. I actually have two loop calibrators (by mistake) and while troubleshooting this I did simulate 4-20 on one and measured it on the other and it was right on. I also did a reset on the...

Question on the industrial automation card for Rasberry Pi. From the factory I was reading values 3.94 -13.3 in node red when driving the input using a signal generator. I used the same signal generator to calibrate one of the 4-20mA inputs. I ran the calibration command at at 4mA and...