adccommunitymod (AutomationDirect) asked a question.
Created Date: February 05,2010
Created By: EW57
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Hey there all! While I 've done quite a few projects using the more basic commands these PLC's offer, I havent gotten much of a chance to play with the more complex functions, such as the HSIO feature. So, just to play (on the cheap) I'd like to use some leftover RC servos from my junk bin, is it possible to control these using a DL105 or DL06? Below are some of the necessary perameters: "All Hitec servos require a 3-4V peak to peak square wave pulse. Pulse duration is from 0.9ms to 2.1ms with 1.5ms as center. The pulse refreshes at 50Hz (20ms). " I have a project in mind that would require steppers/servo control & figured this was an economical way to get aquainted with the software & not worry if something gets "consumed " in the process. Thanks & take care!
Created Date: February 05,2010
Created by: Tinker
Considering that you'd need sub milisecond timing, and I don't think the highspeed pulse output does that sort of pulse width modulation, I suspect conecting an RC servo directly is not going to be sucessful.
However, since the RC servos are so pupular there are lots of driver options avaliable, one could consider a comunications (RS232) based interface, or an analog one if you have an analog output module. Here are a couple I found: http://store.qkits.com/moreinfo.cfm/KT-5199A ; http://store.qkits.com/moreinfo.cfm/QK102 I'm sure a little searching will find many more.
Created Date: February 12,2010
Created by: JimHoward
Using a PLC with RC servos - sounds like a fun project.
I agree with Tinker, a "serial to servo " interface is your best choice. I 've used the Scott Edwards Electronics, Mini SSC II ( http://www.seetron.com/ssc.htm ). Send it serial commands, and it will control up to 8 aircraft/RC/Hobby servos.
Created Date: February 05,2010
Created by: EW57
Hey there all! While I 've done quite a few projects using the more basic commands these PLC's offer, I havent gotten much of a chance to play with the more complex functions, such as the HSIO feature.
So, just to play (on the cheap) I'd like to use some leftover RC servos from my junk bin, is it possible to control these using a DL105 or DL06? Below are some of the necessary perameters:
"All Hitec servos require a 3-4V peak to peak square wave pulse. Pulse duration is from 0.9ms to 2.1ms with 1.5ms as center. The pulse refreshes at 50Hz (20ms). "
I have a project in mind that would require steppers/servo control & figured this was an economical way to get aquainted with the software & not worry if something gets "consumed " in the process.
Thanks & take care!