Im working with RS, and i have used some digital inputs to simulate the process.
But now i have to change this digital inputs to analog ones.
My question is: If I configure the analog input variable parameters ( of the robot, with the robot controller) Physical Max, Physical min, logic max and logic min, the robot controller will convert the analog values that it receives to the others i need?
For example, it receives “mA”, can the robot controller convert it to a “distance” automatically?
Or should I make the change in the rapid programming y-y1=m(x-x1) ?
Thank you very much in advance.
PS. I dont know if this is the place to put this topic, if not.. sorry
Thank you very much for answer too early, im a little bit in a hurry heheh.
I only have the data sheet of the sensor, and there only appears the next about Resolution : < 0,2mm.
But in the user manual that i have of the robot, it doesnt appear the next fields : MaxPhysLimit, MaxBitVal… just the four one I wrote in the first post :S. The robot is an IRB 1400.
And yes the sensor give me: 4mA=100mm and 20mA=300mm
this depends on the laser you use i think, on mine when i don’t detect anything it gives me 500mm, if i go closer than 100mm it always gives me 100mm.
i am using a IRC5 controller, maybe you use S4C+?
about the resolution,i mean it is the bit width the laser sends out the data.
if you use a 12 bit laser, the maximum value you get is= 4095
you can try to also define a group input of you laser bits and see what value you get and enter these in Physical Max, Physical min
the logic max and logic min values are the limits for the calculated values you want to use in your program, the distance in this case
you have to connect your sensor to an analogue input card, those are normally not standard delivered with the robot.
Or you can use wago modules with devicenet and add an analogue input module, on IRC5 you can use any model, but on S4C+ you may have to use a specific model if I remember well.
I dont want to disturb you too much. But i have a new problem.
Anyone knows how can i solve the next problem?
I want to move the robot linear with “SearchL”, but this command needs an digital input, and the laser i think only has 1 analog output. is it possible to connect it to an analog input and to a digital one at the same time? the connection type is 5pin,M12., i dont think so
Well the operation needed is the next: i have to move the robot linear, and when the laser detects an object, stop the robot movement, and read the distance.
They gave me a tip, to use the SearchL, in order to avoid the accelerations and decelerations of the robot, and make a soft movement.
Hello, I think you need to use ADC. Based on my experiences, I connect all of my analog inputs to ADC, then ADC send signal to PLC and PLC will send it to Robot Controller. PLC is stable and more cheaper than any robot device. In the future I will implement Profibus to create the high speed data communication.
I hope my suggestion will give you inspiration.
BR,
Dhyan
Indonesia
this is a thought about how you can maybe manage your problem, i never used it, but it may be possible i think
you can make a interrupt to your analogue input with IsignalAI?
in this trap you set a virtual output that you link to a virtual input with cross connection
I tried to use ISignalAI but i get a unknown error. I created an analog signal with 9 bits. Maybe i got to create a “pure” analog input? The problem is that i don’t know how to do it.
My signal is analogic input
unit mapping: 0-15
encoding: two complement
max logic value:180
max physical val:10
max physical val lim: 10
max bit value: 32767
min logical val: -180
min physical val:-10
min physical val lim: -10
min bit val: -32767
assigned to unit: unidade
type of unit: d355A
connected to bus: DeviceNet1
DeviceNet address:63
