panic mode

yes, you can use TO/FROM to setup ethernet card and initiate data transfer between two plcs. For example you can READ (or write, or both...) block of data (D or M device or whatever) from another plc on a network. this will likely be quite challenging if you do it on your own, specially if you have no experience with ethernet and programming of mitsubishi comm cards. read this: http://forums.mrplc.com/index.php?showtopic=6090 note that third reply has sample code that sends unsolicited message (block of data registers) to another plc. (well it was PC with driver simulating another PLC).

and the transfer setup was like this:

this is what i was using not so long ago (you may want to adjust IP address etc.):

1763-L16BBB and 1763-L16AWA should be about $500 each. that's 10 input, 6 output plus two analog inputs. for more i/o one can add up to 4 additional modules.

personally i would try to keep everything on ethernet but i don't like 1761-NET-ENI. how many I/O this PLC is going to have? could you use ML1100? it is cheap (it costs less than 1761-NET-ENI and about same as tomatron multiplexer), it has ethernet port and online editing. it supports same I/O modules as ML1200 (up to 4 additional cards). it requires RSLogix500 v7 for programming. heck, i could even see using two of them if one doesn't have enough i/o.

check AWT instruction, search this forum for topics mentioning hyperterminal and difference between straight and crossover cables for RS232.

In that case it will probably be RS232. Communicating with Zebra is straight forward using ASCII messages but you do need to download manuals and read them.

IB(NA)66249-P 8.38MB PDF type ACPU_QCPU-A(A Mode) Programming Manual(Fundamentals) http://www.meau.com/functions/dms/getfile....000000513503000 IB(NA)66251-I 20.92MB PDF AnSHCPU/ANACPU/ANUCPU/QCPU-A A mode (Dedicated Instruction) Programming Manual http://www.meau.com/functions/dms/getfile....000000181901000 IB(NA)66542-F 2.09MB PDF ANN ANA ANUCPU Users Manual (Hardware) http://www.meau.com/functions/dms/getfile....000000246502000 IB(NA)66544-B 9.18MB PDF A2AS1 A3ACPU Users Manual http://www.meau.com/functions/dms/getfile....000000186101000

i just created new project for FX1N, clicked Online -> Transfer Setup, on the PC side I/F I doubleclicked on Serial. It let me choose COM port and baud rate of 9600 or 19200...

as far as i remember, FX plcs are going to detect baud rate. all you have to do is set it higher in transfer setup in GX Developer...

Did anyone had chance of working with Ternary drives from Alpha Gear. We have to add one of the units to existing machine and would like to get any help we can. One of the difficulties is that we don't have that plc here to do initial setup (or any other system with profibus because this is what Ternary is equiped with).

maybe this is simple enough?

are you sure selected plc in your software matches one you try to download to?

Walden, what happens if you open dos box, make it full screen and then start Medoc from the prompt?

Terry, you got few answers. did any of this work out for you?

right now, screenshot shows cursor in front of the rung. if you hit DEL it will delete whole rung. to remove just comment, use your keyboard and press ONCE arrow key up, so that cursor is highlighting comment. in example below, i've highlighted text line 3 (cursor is blue rectangle). pressing DEL will only delete that line of text.

take a look at hex instruction

you have to be more specific... what plc and what number formats (in and out)? for example, plc is FX2N, input is something like "123.45" and output should be integer 12345 or maybe float 123.45

i don't recall such problem and i'm not sure if this can be manually configured as service. if not you could try placing shortcut to server in Startup folder (Start, Programs, Startup) to run it every time PC starts or you could use your application to check if server is running and if not start it from there.

did you try to press ALT+ENTER keys? I don't have Medoc but this is common for most programs including DOS Box in Windows...

sorry, i'm not familiar with such part number and i never opened FX1S. if it is DC/DC converter (24V/5V or whatever) you should be able to replace it with different one (check mouser, digikey and newark). i wouldn't hope for much because if this device is dead, there is good chance that controller might be toast too. may i ask how did you fry it?

and are you sure your hex values will always be upper case ("A" instead of "a")?

in that case, here is very simple logic (lad5) that does the same, uses no other memory (just inputs and outputs) and it's only 8 rungs. notice how NO contacts in matrix of each rung are arranged diagonally and last branch of each rung is all NC. also note that rung get progressively bigger.... and sice we want up to 2 outputs active at the same time, first two rungs don't have any filters. if one wanted up to 5 outputs active at the same time, first five rungs would be simple and only following rungs would have them. 2FEED_2.RSS

code in LAD4 will turn up to two outputs depending on inputs comming from proxy sensors. it will always select two lowest proxy sensors and turn appropriate outputs. sorry for short comments... it's just quick and dirty spagety code. registers without comments are used as temporary storage. for example if inputs 2,4 and 5 are on, only outputs 2 and 4 will be active. if either input 2 or 4 goes off, output 5 will turn on (become second active output), etc. 2feed.RSS

ASCII instructions eh? did you try scrolling to ASCII Instructions tab? there are things like ACH, ACI etc. (ACI is "ASCII to Integer")... or you could subtract 0x30 from each char to get it's decimal value...