Try Triplc.com. Their PLC's interface with some of the AB PLC's. It=20
could be in the hardware manual for some of the higher end PLC's, or the=20
Trilogi IDE manual which does both ladder logic and a version of Basic=20
within the ladder rung outputs. A place to look is the end of line=20
sequence with line feed and carriage returns. I have some of their=20
MD100's on a RS-485 > fiber optic > PIC 18F1320
On 5/24/13 9:41 AM, David Strumpf wrote:
> Does anyone have a known / reliable interface for Allen-Bradley's Data Hi=
ghway Plus or Remote I/O Serial Interface?  I have a Two Wire RS-485 applic=
ation today that I am trying to port over the design to Drive a Two Wire bu=
s to DH+ and RIO.  I believe that the differential amplitude is higher than=
 RS-485 and the interface is transformer coupled but I do not know the pref=
erred interface circuitry.
>
> Any help would be appreciated.
>
> Thanks,
> David
>
>

--=20
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