Activity for janderson
-
janderson posted a comment on discussion Motion 🇬🇧
it appears that the different revisions have different PDOs. I am currently trying to use the rev25. I have tried to use the rev24 (the device repository entry not from 'scan for devices') and i keep getting 'invalid output mapping' or 'invalid input mapping' in the ethercat log. I cant even get the bus to run from the device description that comes from 'scan for devices'...
-
it appears that the different revisions have different PDOs. I am currently trying to use the rev25. I have tried to use the rev24 (the device repository entry not from 'scan for devices') and i keep getting 'invalid output mapping' or 'invalid input mapping' in the ethercat log. I cant even get the bus to run from the device description that comes from 'scan for devices'...
-
also my ethercat bus won't run.
-
I have a beckhoff EL7041-1000 rev 21 in my ethercat bus but it wont correctly create a softmotion axis unless i manually insert the device. scan for devices gives me an el7041-1000 without an SM3 axis.
-
when using an array of structs, the runtime crashes. but when using an array of LREALS, it'll do 100k at least
-
What are the limitations of the OPC UA Server? I am trying to get data off my PLC that is acquired at high rates (~50k samples/s) so I am storing them in arrays and trying to get the arrays off the PLC. When I attempt to read a ~200k element array through OPC UA the server and runtime crashes (requiring tools -> update linux arm64 -> start runtime). Is there a better way to get highspeed data off? The ACDatalog library seems a bit irritating to use so I would prefer to go through OPC UA.
-
Nevermind, i did not recognize that the clamp is placed on the value of the integrator prior to it being scaled by KI. After increasing the max and decreasing the min, it functions normally.
-
I may have discovered a bug in the control loop library. I am using a PID Controller and when I use an anti-wind-up strategy the response will settle at exactly the setpoint-1. When the anti-windup strategy is removed the controller settles at the setpoint correctly. PROGRAM temperature_control VAR //PID Controllers PID_1_output: LREAL := 0.0; PID_1_error: Ctrl.Controller_Error; PID_1_integrator : Ctrl.Integrator_ParabolicApproximation; PID_1_diff : Ctrl.Differentiator_LinearAverageApproximation;...
-
using linuxARM 64 bit runtime
-
I'm running raspian lite 64 bit on a pi and have successfully licenses the runtime and ethercat master through a codemeter usb key but I cannot get OPCUA server SL to work. The license quantity is zero when looking in the codemeter key and the opcua server shuts down after two hours. I have tried two licenses, one in the codemeter key and one in the softcontainer on the pi. They show installed but they do work, each has zero quantity for license. I also hit error 403046401 during license install...