brazierp

Thanks again, You got me started and I'm all running now. Peter.

Thanks Jeremy. Simple as that. I'll give it a go. What is confusing me is the instruction set manual says: Each main high-speed counter has four dedicated inputs and each sub high-speed counter has two dedicated inputs. HSC0 utilizes inputs 0…3, 4 inputs sounds like it uses the counter in differential mode.

Hi, I've got to wire a rotary encoder to a L32-BXBA. It's a 24v push/pull a/-a and b/-b I can't find a wiring diagram in the documentation and it will save me a lot of time if anyone could give me a heads up so I don't waste a day with pull up resistors and the like!! Thanks in advance and aplologies if this has been covered elsewhere. Peter

Just dug up this old thread as I have just encountered this problem (and did the right thing by searching for it first!) For what it's worth, the problem of it not being able to start RSLogix if it's not already running when I start a remote session, I add it to the startup menu and remotely reboot, go back in and it's working. I sometimes get a grace period warning. But the reason for dragging up an old thread is can anybody recommend a remote program which the almighty factory talk activation is happy to work in? I also find it bizarre that RSLinx is happy to start and stop under remote desktop despite having a similar activation policy (apparently)

Thanks Amish. I don't have the ability to measure torque on these drives so I am limited to looking at and setting speeds. It's an interesting approach though. I'm a couple of weeks away from having to do this for real. I'll let you all know how it goes.

+1 !! I'm gonna do that every time from now on. Thanks Okie.

Only use voltage if you absolutely have to and keep it inside the panel if possible.

Thanks guys. Yes, I need two drives as I want tension control and the hardware is already in place so servo's are out of the question right now. I'm going to keep it simple and just scale the rate input to the current output and see what happens. It's a $7,000 belt so I need to be a little careful!! Peter.

I'm just about to do something which I've never done before and thought I would get your collective advice, tips and warnings. We have a simple conveyor belt with two drive drums. To help reduce slippage we have decided to try and drive both drums. Both drums are driven by identical motors with encoders on the drum shaft. Motors are controlled by regular variable frequency drives speed controlled by 4-20ma from a SLC500. The rate encoders are separate encoders into HSCE cards. We don't think this needs to be very accurate and to start I am thinking of just sending the same signal to both drives and see what happens but I would like to be able to keep control of the belt tension by running one drive a little faster than the other. In this case I am guessing I will take the "master" drive and set it at my required speed, look at the rate encoder and make the "slave" drive keep at say 98% of it's speed. So is there a simple way to look at the master rate and set the slave speed signal depending on the rate observation from the slave drive? The actual belt position is being monitored by a separate surface encoder. I hope that's clear. Pete.

I don't think they "round" at all. Timers will effectively count a full increment of the selected time base. So at .01 seconds it will read .01 until it reaches .02, i.e. .019999 will still read as .01. I guess if you had to relate it to rounding it is always rounding down.

Thanks for the responses. I really like the concept of the PVC so I am going to stick with it. Most of my applications don't require more than it can do, it's just this speed issue. Google Chrome is supposed to be the fastest browser out there so I will give that a try next, see if it works and post the results.

Sorry! OK, Panelview component (PVC). I am setting up my first ever, it's a C1000 and I love the concept, self contained, easy to access on the network etc. and it's cheap! So you get what you pay for, but I am exploring the best way to make advantage of this.

OK, despite the fact I'm talking to myself, here is some more. I've tried Firefox for a while and it's actually slower and doesn't navigate properly but it's usable. I couldn't get Chrome to work with it at all well and as I'm editing a live HMI I don't want to mess too much. I'm really curious if anyone does any PLC/HMI work with a Mac and how they get on. Peter.

I which we had them in the UK. I always use ferrules, even on domestic stuff. For UK people, I use these guys. http://www.chaloncomponents.co.uk/shop/category_Bootlace%2520Ferrules/Bootlace-Ferrules.html?shop_param=cid%3D%26

OK, joking aside, I've been doing some experimentation with various machines. Looks like my Windows 7 machine running IE9 over Ethernet is fastest, quite significantly faster than my old XP machine (powerful in it's day) but the one I use for programming as I have an old version of RSLogix. I am surprised how machine dependant the performance is but I guess the host pc is running a lot of scripts within the browser. It's still a bit slow but usable. I really like the concept of the PV Compact and I hope they develop them further and increase the range. Anyone else got any experience? I'd be curious to know if anyone has tried with a Mac or other browsers? Peter.