Re: SV: RS485 RTS on/off

[Bruce A Vicknair]

I too have modbus in mind. I'm converting over my rtu source to linux. I
like using a hardware timer for rts timeout on pc apps. Take a look at
some of the rs485 converters that have this built in. You do have to
strap the timeout to match baud rate.

Is anyone doing wireless linux? I just finished a spread spectrum app and
am very impressed. Used "digital wireless" [norcross,ga] module.

I guess modbus/tcp-ip is next.
 

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Re: SV: RS485 RTS on/off (Gary' smessage didn't make...)

[gary . james]

 Gary A James wrote:? (Gary's message didn't make it to the list?)

I think the reason my message didn't make the list is because I've 
gotten used to sending stuff out out by hitting the "REPLY" button. 
The messages that I receive from this list don't have any "reply to" 
field.

 :-) The list was not intended to be complete or exhaustive. I'm not
 familiar with CAN at all, I thought it was mainly used in the car
 industry?

CAN was originally designed for cars, but it's also used as the basis 
for DeviceNet which is used to tie low cost sensors to a PLC network. 
I think Prophibus (which is more popular in Europe) has a layer that 
can run on CAN too.





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