Mendon Systems
MrPLC Member-
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Posts posted by Mendon Systems
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The same bug is back again!!
It seems to only effect the forums that have sub-forums like General Topics and Omron.
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Turn off switch 7 on the CPU if you do not want the program to load from the CF card.
There never was a good description of the memory card functions for the CJ1, but there is a good description in section 8 of the CJ2 manual (W472). The CJ1 & CJ2 memory cards operate the same.
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I purchased several of these a couple of years ago.
So far I have not had any problems with them and they are a LOT less expensive than the Omron cards.
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The bridge mode can be useful for applications where you want to strictly limit access to the wireless. It can be set up to only connect to specific MAC addresses so unknown devices cannot connect to the wireless. Other than that, I did not see much difference.
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The Engenius units that I used could be set up as either a wireless access point or as a wireless bridge.
In one configuration, I had them set up as a bridge to extend a LAN to another building. That one used outdoor wireless bridges with directional antennas to cover an opens space of about 500'.
In another setup, I had one wireless access point connected to the plant network and two more that were mounted on machines which were periodically moved around. Those wireless units used "rabbit ear" antennas and had a limited range of around 150'.
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I have several systems that communicate using Engenius wireless bridges, but only between two PLCs. I suspect that bandwidth might be an issue for ten PLCs with the units that I used, but there are newer ones out that are much faster.
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Check to make sure that the DIP switch settings on the new PLC are the same as the one you replaced.
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My mice (all Logitech) work fine with CX-P. I suspect it is some sort of problem with your mouse's device driver.
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Whatever it was appears to be fixed now.
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The new content icon on the left has not been working correctly this week. The option to "mark as read" does not appear for some new content.
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You will have to contact Omron.
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Any of the CP1 series models.
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The ERC detecton works when any of the four ports is set to 1-5 volts (also 4-20ma). There is only one ERC indicator so an out of range condition on any one of the ports that is set to 1-5 volts will trip the indicator.
The function of the Dip switch is to connect a 250 ohm load across the input terminals for current loop inputs. Opening the switch with a current input connected would probably cause an ERC condition.
Read section 9 of the W345 manual.
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Obviously something is not working correctly.
The ERC indicator on that module will come on whenever the voltage on an input set for 1-5vdc (or 4-20ma) is not in a range between 1 and 5 volts. The erratic readings you are seeing would indicate that there is something other than DC voltage on those input signals.
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I would suspect that the power supply to one (or both) indicators has become erratic.
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The ERC light normally indicates an open or out of range connection to a current loop device.
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I agree with Crossbow about using a register value to control sequencing. It virtually eliminates the possibility of multiple steps executing at the same time.
In general, I do not use SET/RESET to control real I/O points because the real I/O usually needs built-in safety interlocks in the logic. I often use SET/RESET to control internal logic bits when sequencing is involved or when the sequence calls a subroutine.
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Well ..... I contacted tech support and got the answer that I expected but did not want to hear. The only way to fix this is to remove CX-One and re-install from the DVD.
Edit: After a bit over an hour to remove and re-install CX-One the problem is solved. It seems like a lot of fooling around for a busted link.
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I have one copy of CX Programmer which is giving me a "Net Framework Is Not Installed" message when I try to open a program containing an STL function block. This seems to be similar to an old problem last reported back in 2008 in this thread. http://forums.mrplc.com/index.php?/topic/13409-sfc-not-working-cx-p-v72/&do=findComment&comment=65950
Net Framework 1.1 and 4.6.2 are both installed on this PC and I do not have this problem with any other software. I just noticed this issue a few days ago. I have another nearly identical PC which is set up the same way and does not exhibit this problem. I have just installed the latest updates to CX-One without receiving any error messages but that did not solve the problem.
Does anyone have any ideas how to fix this problem without completely removing CX-One and starting over from the original CD?? It seem like this must be something simple like a bad registry entry. Jay?? Michael??
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Those are probably not inputs. Any CIO words that are not assigned to I/O modules can be used for internal storage bits. I suspect that somewhere else in the program you will find rungs with logic and a coil for those bits.
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Well.. 100 is a bad choice to use because that is where your outputs will be located in a CP1L. The DM register D100 would be perfectly acceptable. You would enter it as TIM n D100 where n is the timer number you want to use and D100 contains the calculated timer preset.
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The standard Omron timer is 100ms per tick, 10 ticks per second. If you use a DM register as the timer preset (TIM, timer #, D register) then you can use some simple symbol math to calculate the preset and load that value into the D register. Multiply T by 2, add P, then multiply that result by 10 and store the resulting value in the timer's D register
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The CP1W-CIF41 or CP1W-EIP61 coupled to any decent wireless bridge should work, but those pallet racks are going to be difficult to get a wireless signal through so don't expect to get a whole lot of range on the wireless signal.
I have used a similar setup with an Engenius ECB series wireless bridge. The reliable range was only about 100' on that system, but there was a lot of electric motor noise in that area.
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A PID instruction might work, but it might also be even slower to respond. If you are working with liquids a fairly small change in flow can result in a large change in pressure. You might want to also consider an accumulator tank to slow down the required response time.
CP1L daylight savings?
in CX-Programmer
Posted
What are you using the internal clock for?? They are not all that accurate.