Link-systems OmniLink - Feed Interface User Manual download pdf (Page 30)

OmniLink 5000 Feed Manual December 13, 1999

5.1 Manual Rev 2.3

5. INTERFACING TO OTHER FEEDS OR DEVICES

In many cases a feed that is not currently supported may have a programmable basic module or other

means of customization. You may also want to tie in a PLC or other controlling device that is handling an

entire feed line. In these cases it makes sense to program the device to emulate (or “look like”) another

already supported feed. The simplest feed to emulate is the Electro-Craft IQ2000 series. The protocol is

as follows:

Communications:

RS232, 9600 baud, no parity, 1 start bit, 1 stop bit, 8 data bits.

Conventions:

[CR] = Carriage return

[LF] = Line Feed

[S] = Space

X = Digit (0-9)

To Request Length from the feed:

5000 Sends:

G1[CR]

Feed Returns:

G1[CR][LF]G1[S]=[S]XXXX.XXXX[CR][LF][CR][LF]PDM>

To Send Length to feed:

5000 Sends:

G1=XXX.XXX[CR]

Feed Returns:

G1=XXX.XXX[CR][LF]G1[S]=[S]XXXX.XXXX[CR][LF][CR][LF]PDM>

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Link-systems OmniLink - Feed Interface User Manual Page 30