GE EPM 9650/9800 manual Type F17 External Digital Input States

3.17: Type F17 External Digital Input States

Length: 1 Register (2 bytes)

This register has two bytes. Each byte has eight bits. The bits in the Least significant byte are associated with the eight External Digital Inputs in an External Digital Input Module, the most significant bit with input 8, through to the least significant bit with Input 1. The most significant byte is undefined.

A bit value of 1 means the input is open; a bit value of 0 means the input is closed.

Example:

Register 02774, Digital Input States, Module 1, might contain the following data:

Address											02774
Value											0051H
Bytes				00H									51H
Bits	0	0	0	0	0	0	0	0	0	1	0	1	0	0	0	1
			Undefined								External Digital Input States
Input	8	7	6	5	4	3	2	1	8	7	6	5	4	3	2	1
Meaning									Closed Open Closed Open Closed Closed Closed Open
Interpretation						Inputs 7, 5 and 1 are open; all other inputs are closed.

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