3-5
3.6:
Type
F6
High
Speed
Input
Delta
and
Current
State
QLength: 1 Register (2 bytes)
QThis 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.
QThe 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.