lostcontrol

Hi I am testing the NB as a modbus master with mixed results. It seems I am able to write to the salve device, but not read correctly. I switched to just using multiway, & all appears correct when monitoring the send/recv strings, but the value on the NB does not update & a comm error is displayed. I am pretty sure I have the wiring correct, using 485 from pins 6&8 through a 485/232 converter to multiway. Any suggestions on where I might be going wrong?

Are all the FB's always enabled? Do they have any other conditions pertaining to the reset? Assuming they all in a cyclic task?

Have you checked what the peripheral servicing is set to? This could be having an affect, but 3sec seems way too slow. How are you monitoring? I normally always setup a register that monitors the PLC Clock second, this should always be updating 1 increment at a time, if not then there is problems. Have you tried testing with a smaller tag count?

Without the FB?

The manual is always a good place to start. Most VSD's I hav used on E/IP have an area where parameters are exchanged with the master. This area had In/Out setup that you can plug the parameters that you want to exchange with the master. Does the yaskawa have this? Do you have a link to the manual?

Does the NJ also do structures? And, do we assume that it automatically assigns the tags/structure to memory like Rockwell does?

Not quite, the output side of the rung is still processed. I think this is a common mis-understanding of using the Always Off contact. Yes, the scanning of the inputs after the always off are no longer scanned, but the output side must be. How else does a standard output coil switch off?

You will most likely need a routing table in the PLC as well

Use a loop to advance through each index?

You should be able to make the control word dynamic I would do a loop, & write the carriage return after x writes.

Maybe ignore this, it came up quite easy in the end. I will check with IT to see if this port is open. http://www.global-download.schneider-electric.com/85257563005C5B79/all/706555C0D7F4E969C12579040029FAA5?OpenDocument&L=EN&p=1054&idxUrl=mainRepository\index.nsf&XID=&XHOST=http://logi5.xiti.com/&HOSTIP=http://www.global-download.schneider-electric.com/&OTrSer=http://www.download.schneider-electric.com/&

Hi, I am connected to a remote site over VPN. I can ping all of the Magelis terminals on site, so they have the correct gateway/mask etc. But, when I try to download target, it cannot be reached. I have no idea why, so am speculating. Could it be the port that Vijeo Designer uses? Does anyone know what that is? Or, is there a download utility that will allow me to download locally? I have a terminal on site that I can do this with the Rockwell ME transfer utility. On that note, I have been able to download to the PV+'s on site before, but started doing it locally once we got a terminal there, as over the VPN it took too long.

Is your PLC Ethernet then?

How is your NS connected to the PLC? I doubt you can simulate the CX if it is serial

Try the BOR

This is unfortunate, but you only have yourself to blame.

You could probably even use the in-built PLC-PLC links, think that will work between 2x PLC serial ports...

What Interrupt interval were you hoping to achieve? Looking at your .cxp files, you have 10mS as your setup, with a value of 500 in your MSKS instruction. This will result in a interrupt of 5sec, does this need to be interrupt driven? Also, there looks like a lot of code in the Int 02 task, too much IMO. Can you not move some of it to be cyclic? Are you trying this on actual hardware? In projects I have recently done with a CJ2, I have MSKS 14 &10 with a 1ms Interrupt Interval set, which = 10mS. MSKS 14 = Reset/Start, but looks like it is only valid for CJ CPU's, I am trying to find the reference for the CS... Apart from all that, providing you have transferred the Code & settings, then cycled power to the CPU, this should work. If not, I would be starting with a blank program with just the MSKS & Int 02 tasks. For testing, I often put a un-conditional ++ instruction in the Int 02 task so that I can see the value incrementing at the required interval.

Please attached the files using the Forum functions, I cannot read what the links were to that site, nor fancy downloading from something like that sorry

Scheduled interrupts are a hardware feature. I very much doubt they work in Simulation mode, you need an actual PLC. If you are using an actual PLC, then post your .cxp file.

Sorry for the delay, but attached is 2x Pic's of the Ethernet config that we used. You can see in ETN 1.PNG that FINS/UDP was 9601, this was used for the SCADA ETN 2.PNG shows the FINS/TCP connection table, from memory this was done as some of the other PLC's were on different subnets. The standard FINS/TCP port of 9600 was still used though. Hope this helps

Does TopServer use UDP or TCP? If it is anything like Kepware, I think it uses UDP IIRC, I will need to check tho. You only need to change either the UDP or TCP to make this work. We have had the same issue with a site that had Kepware on multiple ports & PLC communicating. I am not in office so cannot check, but will in next day or 2.

Not that I know of, the only way that the NS can be restarted is via the Reset button on the back, or by cycling the power. I don't even think accessing the system menu & returning again classifies as a restart... 2 Questions: 1. Why do you want to do a restart..? 2. If you have to do a restart, why?

Still does not explain why it did not work on your desk CPU... This would be a valuable answer to find.

You must have an I/O server licence? InTouch has DASOMFINSEnet, this will communicate with your CJ2 very easily.