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Allen-bradley PLC Processors

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peavey_wolfgang_2000

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Allen-Bradley processors do not have which communication connection?

(a) D-Shell
(b) 9-Pin
(c) 9-Bit
(d) Data Highway Plus
(e) Programming terminal
 

What Allan-Bradley processors have is:
- 9-pin D-shell RS-232 connector
- DH+ RS-485 interface
- 9-bit word structure
What they don't have is a direct programming terminal - they are programmed through serial port(s) ..
 

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