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3-5
3.6:
Type
F6
High
Speed
Input
Delta
and
Current
State
Q
Length: 1 Register (2 bytes)
Q
This register has two bytes. Each byte has eight bits. The bits in each byte are associated with the 8
High Speed Inputs, the least significant bit with Input 1, through to the most significant bit with
Input 8.
Q
The most significant byte contains Delta information about High Speed Inputs, the least significant
byte contains the Current State of the High Speed Inputs. For Delta bits, a bit value of 1 means one
or more were noticed on this input during the last cycle, a bit value of 0 means no changes were
noticed on this input during the last cycle. For Current State bits, a bit value of 1 means the input is
open, a bit value of 0 means the input is closed.
Example:
Register 00118, 1 cycle High Speed Input Delta and Current State, might contain the following data.
0
Address
Value
Bytes
Meaning
Interpretation
0000 1 0001100001
87654 3 2187654321
_____Change _ _ Clsd Opn Opn Clsd OpnClsdClsdClsd
High Speed Input Delta High Speed Input Current State
04H 61H
0461H
00118
Inputs 7, 6 and 1 are now open and Input 3 changed state at least once during the last cycle.