dunc

assuming the demo is much the same as the full version, then yes. it will work fine on windows 7, windows 8, 64 or 32 bit.

if you run a test on the project before sending does it throw up any errors?

we use prodigy SCADA on our site. there is no need for an OPC server with Mitsubishi, it has a driver that can connect directly to it. you dont need to use another Ethernet module on the PLC either. setup is a bit fiddly, but ok once you get the hang of it. PM me your email address and I will send you screenshots and info to explain the setup.

I agree with the above. never had any issues with either other than the stand alone Ethernet card needing a reboot every now and then on one particular PLC.

as above. if it is a case of there not being enough online maintenance steps available, you can specify a larger portion of the memory to online changes (assuming you have enough spare memory capacity for this). the default is 500, but sometimes this is altered to free up memory.

sounds like a corruption of one of the files. your only option is to get hold of the software and reload if another reboot of the machine doesn't clear the fault. you could try and download the current program using Edesigner then upload it back in, that has worked for me in the past on E700's

ive bought an ebay Chinese SC-09 cable in the past and it worked fine apart from 1 PLC we have on our site. it would monitor, but if I ever tried to write anything or verify, it would fail. tried a genuine lead and it works perfectly. the original lead I got failed after 2 days so I was sent a replacement for free. the copy SC-09 had no other issues on any other PLCs on our site which was very strange. I just get genuine cables now. they fail from time to time depending on use, but save a lot of hassle in the long run.

get the company to put the PLC on the network and give you VPN access to just that one device. they do all the work and you just have to connect to their network as and when needed from anywhere in the world.

I looked at this before, but was looking to convert from .cpa to .mpa. it doesn't appear like it can be done other than by the oem. beijer have information on their website about conversion, but it is a little vague. im sure they will help if you contact them. beijerinc.com/product/mitsubishi/#mitsubishi-exter

you could try BKRST? or just block move 0 to the relevant bits?

right, that was how i was reading it which confused me. i fully understand it now. that one was the spanner in the works that made no sense. i guess in the majority of cases you would just enable all analogue inputs anyway, so you wouldnt have to worry about working out what the hex number is to enable certain channels, you just use H0. thankyou for your help.

looking at setting up a new analogue input card. looked at the manual and the example on the forum and it all makes sense apart from the initial enable channel setup. im using a Q64AD on a Q02 CPU. manual states: [TO H0 K0 H8 K1] this enables channel 1-3 according to the manual??? the example on this forum states: [TO H3 K0 K10 K4] this enables channel 1-4 I have found an example on one of our other PLC's (with a Q68AD) which is different again: [TO H5 K0 H0 K1] this has all 8 channels enabled could someone please help explain this as I cannot see any logic in these instructions!?!? I get the TO H%, its just the rest of the instruction that is confusing me. thanks Duncan

right, thankyou for that explanation. I think I now understand how it works in the manual description and the example I found on another plc. if this was an 8 channel card and I wanted to enable channels 1-7 would I do it as follows: [TO H0 K0 H80 K1] ? I still cant see how that would work for the middle example I posted which is from the program examples on this forum: [TO H3 K0 K10 K4] how would that enable all 4 channels? thanks for being patient with me so far. Duncan

I kinda get that. its just I cannot correlate the 3 instructions I posted to what they are doing? in the instructions above that specify a hex number as the source address, what does this relate too, a buffer location in the specified card or literally a hex number as per the second example using a K constant as the source? I am really struggling to get my head round it and I apologise!

this is where I am confused, the card manual isn't very clear. usually I can look at a few examples and work out what is going on, but in this case the last 2 elements of the instruction make no sense to me. I understand the TO, I understand the head address, I understand the n2 as these are all common across the instructions. what I cant get is why the instructions I posted use a different source address (s) and data block length to be written (n3) to basically achieve a similar thing?

apologies. via sequence program using TO commands. GX developer 8.8

we have a SCADA PC (running windows) which is fitted with 2 network cards. one network card connects the PC to our company network, the other one connects the PC to a separate control network. I would like to keep the separation to stop network traffic passing from the control network onto the company network, this is also the view of the IT department. however, is there a way of accessing the devices on the control network from another PC on the company network in a way that wont permanently merge the 2 networks? hopefully that makes some sense? can anyone help as I am struggling to find a solution! thanks

thanks for your help. I think I get it. our IT department are very reluctant to do anything. as we are the engineering department we are the bottom of the priority list. if a young sales girl cant untangle her mouse they drop everything and go running! anyway..... I only really want to be able to access the PC1 from PC2 so I can remote fault find from my desk if there are any issues. it also makes taking backups a lot easier and cleaner as I can do it all from a central place. PC2 is on windows 7 32 bit, PC1 is on windows XP. PC1 and PC2 are both on the same "200.200.200.0" company network. PC1 control network is a local "192.168.0.0" network. would I have to enable connection sharing on PC1 then create my static routing on PC2 to access the control network?

please see attachment. how would I communicate with the control network with PC2? our It department say it cant be done. in other words, they cant be bothered. they tell me this all the time and I work most things out myself. thanks everyone

does it allow the installation to continue? I got an error when installing on a 64bit version of windows and it allowed the installation to continue and I havnt had any issues yet. if you can, install windows xp mode and try and install it that way. you can run gx developer as normal within the virtual machine

i assume your using a usb to rs232 adapter then plugging in your sc-09 cable into the a1sh? the usb to rs232 adapter will be assigned its own com port, you need to set the com port in transfer setup of GX developer to match this com port. to find out what com port your adapter has been assigned, go to control panel ->system->device manager and you should find the info you need there.

found another instruction I cannot quite fathom out: [DMOV H1A03 K8M802] cant seem to find a definitive answer to the entire instruction, but from what I understand it is a double word move of the hex value 1A03 to M802 and the next 32 bits? am I along the right lines? If I am correct in what format does the hex value transfer to the bits? there is also another instruction: [DMOV H0 K8M566] does this essentially reset all bits from M566-M598 (32bits) by moving the value 0 into the bits in the instruction? thanks

good good, makes a change for me to understand it. never seen it used before, what is the advantage in using hex numbers rather than decimals in a data register or a K constant to set blocks of bits?

i have been going round our site adding keywords to all the PLC's to help with revision control and stop people fiddling. All have been perfectly fine until I got to a couple of Q2as cpus that were installed by some German company that has gone under. the issue I am having is that the keyword wont be accepted as it informs me that the PLC has run out of memory? I have never had this issue before. I am aware that PLC cpu's have a finite memory but have never had any that have been so close to the limit that they wont accept anything more. other than the obvious, deleting parts of the program, is there anything I can do to free up enough space to allow the keyword to be accepted? thanks

please see attached pics of PLC parameters. can anyone see anything that could be causing my issue?