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i really wanna know the answer to this one.
some say dont spent money on PLC and use an AVR and keep the cost down.
some say be safe use a standard thing and use a PLC and make a smart decision. the programming is easy. the PLC is more reliable.
what do you think?
if i want to use it just to convert 485 to 232 it will be fine right?
if it needs RTS then its not suitable for PLC rs485?
i used 232 but got nothing on the other end. the cable i used was Cat5e and it got 485 through.
i wanted to use 422 but its converters are more expensive. money is not...
Excuse me sir if im rude but you must be very old!
cassettes remind of the Commodore 64. it was a very big deal in our country.
i gave these Converters to an expert and he told me that these are not reliable and on the 485 side it cant be connected to a PLC. i bought one of these:
**broken...
it was 9600 but i checked with 4800 and still no connection
it is half-duplex (i connected 2 wire for 485 to plc). i thought every plc is half-duplex isnt it right?
but right now my problem is these to converters. why cant i get them to work. where did i go wrong?
im sorry
i didnt explain the situation well
i have a PLC and a HMI. distance between them 15 meters.
i want to monitor PLC while i see the HMI.
so i need to have the rs232 15 meters from the plc.
and in another project i need to connect PLC to HMI with rs232 (D:20m)
rs485 is just easier...
it works without converters.
dont have one
its not.
how can i check that?
how can i match them?
its a cheap product. i just wanted to learn.
i couldnt get it to work with rs232.
i test these on a DELTA SV series but couldnt connect.
dont you think that i need to supply power with...
hi
I bought 2
Hexin
rs232 to rs485 converter and i cant make connection through them.
i took a picture of my installation:
**broken link removed**
as you can see i want these two to convert rs232 to rs485 here and after 15 meters again covert it to rs232 again.
i use these plus OMEGA...
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