ratcliffe_ic

See my 1st post, I have this set. I have contacted Mitsubishi about this problem and am awaiting an answer.

I have some information here that the A-B floating point format complies with IEEE-754.

They're both XP SP2 and the D820 works on every other system: AB, Omron, Schneider etc. Anybody else using a Latitude via ethernet in this way, what version of GX dev are you using?

I've now uninstalled and reinstalled with antivirus and firewall off, same result can't communicate.

I've just loaded gx dev 8.45x on my older laptop, an inspiron 8100 and I can get online without any problem over ethernet, so it is definitely a problem with gx dev on this machine, I'll have a go at installing without the firewall and antivirus and see what happens.

I'm having the same issue as your post, I know it's an old thread but did you find a solution?? See my recent post.

See the attached screenshot for the interface image, I notice there is no details here for the PC side interface, can someone check if some information usual appears about the pc's settings. When I select 232 it gives me information about the com port etc. but why not for ethernet. interface.bmp settings.bmp

Yes i've seen that information but that is more about getting the ENET to talk to other devices, which I don't have an issue with as it is talking quite happily to the E1041 attached to it. My issue is with what should be the most simple connection, that to GX developer - TCP Melsoft connection. What I have noticed is that from FX configurator whilst connected via 232, I can select diagnostics and do a ping test to the HMI which replys but a ping test of the ENET card gets no reply, maybe this is not unusual though.

Yes, I realise that I probably have everything set correctly, that's why I'm thinking its related to the laptop and gx developer / gx developer 8.45x. So has anyone else had any issues like this?

Yes that's all set.

If you have the old and new readers both inputting to hyperterminal and the old reader still works on the basic module, it will be because the RS232 TTL signals from the new reader aren't at quite the right level for the basic module. I've had this problem when replacing old readers, you need to ensure you choose the right reader, I've found that readers which have a separate power supply typically work (although I can't find any details of what I last purchased). The 232 to TTL converter is a good suggestion, I might try this myself in the future.

I haven't got an alternative but I have used the Prosoft converter you refer to and set-up was quite straight forward, I was using a Mitsubishi Q series Modbus card.

Been in the same situation myself, you will need PL7-3 to get the code from the PLC, once out, there is some conversion tools in PL7 Pro to convert the code to a new PLC. Watch out for differences in the scan, older TSX scan in columns not rows, most things work ok, but you can have some issues. If you contact your local schneider rep he will be able to get one of their system guys to get you the program out, but may charge for the service. If you are swapping it out you maybe able to cut a deal. If you are just looking to modify or support it you will probably struggle getting hold of PL7-3.

From the manual for graph 5 I've now learnt the meaning of SNBR, AUS, A/H, TIPP, T+1 and STO. STO, the one I was interested is a timeout on a graph step (Step Time Out maybe). Each graph step has a timer associated with it and I must have a step with a timer set at 180 seconds where there is the possibility of the process being set for up to 300 seconds. Hence the fault. However, the next problem is, can I access the timers which are used within Graph 5 without graph 5, are they the same timers as in the general program?

With reference to the attached image, I believe what I am seeing is a subroutine call to FB72 which is programmed in Graph 5, can anyone tell me what SNBR, AUS, A/H, TIPP, T+1 and STO on the right hand side mean. I am having a problem with F100.5 becoming true which indicates a fault, I think this is related to a timeout on a step in the graph, but as I can't look at the graph because I do not have Graph 5 it is difficult to check what is going on. I believe it is a timeout because if I drop the process timer below 180 seconds then it is OK, anything above 180 causes this fault which requires an aknowledge. Is it possible to edit the step timers without graph 5? Any assistance would be very much appreciated. s5.bmp

I have a machine with an AEG Modicon PLC which needs the PLC replacing, is there an upgrade path which will allow the existing code to be auto-converted for use in an up-to-date Schnieder PLC? Anyone done this, know of any pitfalls.

I've just checked and Unity Pro can open Modsoft projects (.env) and Proworx32 databases (.pwx). I've spoken to my Schneider rep who says there is no direct conversion into Unity Pro and it will need a rewrite to get it into a M340 PLC, he also mentioned the vertical column scan in the AEG Modicon, which has caused me problems before when going to a left to right scanning PLC. Have you actually done what you say above because I am getting confused over what is possible?

Thanks for the info, what do you mean by "ProWorx, on the other hand, is enough to make you give up 984 ladder logic."?

It is a 984 series, not sure of the exact part code, but I've attached a pic.

I'm looking at a project where I need to record data from a CompactLogix, the client wants the data to transfer into excel. I know I can DDE into excel but I don't want anything homemade, I'd rather buy some package to do this. I can use the ethernet port or the 232 port (preferably the ethernet) I know I'm looking at some kind of SCADA system but I'm after something thats fairly cost effective that other people may have used. (i.e don't just say use RSView) Thanks

File attached. DAU115LS.zip

You probably have something that clears the full word e.g clr B3:1 ( or maybe a MOV 0 or a FLL command) somewhere in the program

You will find a PUT instruction used in conjunction with a GET, the equivalent in PLC5 would be a MOV instruction.

Currently doing a project where we need to look at the behaviour of the system over time, trends have been set up in the HMI but the issue is I need to access them remotely somehow. The ideal is that we dial in and retrieve the data, but I'm not sure if this is possible so I'm throwing it open for comment.

Thanks for the reply, what do you mean by "VNC like remote connection"? When you say you have used a mobile broadband router is this at the E1101 end? My main problem will be I will not be able to use the clients network and therefore will have to fit something like a GSM modem or PSTN modem if I'm lucky.