Programming Instructions
R 02/92
9.6.3 Reading the Result Tracks
In order to evaluate the current track bit assignment, bytes O to 3 and byte 7 can be read at all
times.
Result track bits are set when an internal counter value is within a specified initial and end
setpoint.
In case of incremental encoders, synchronization bits are set when a synchronization pulse is ac-
tive (via an external preliminary contact in connection with a zero mark and a count pulse) or syn-
chronized by the software.
Track identifiers
(result track bits)
Vz
= Sign
Syn. = Identifier, indicating whether synchronizing
took place
Int.
= Identifier of the channel where the interrupt
was trig ered
~P
t
= Enable it for write and read absolute value
= Track
parameterized
with
IR
identifier bit
Bit 7 6 5 4 3 2 I
o
{B”e;~l
4 Absolute 10
1
Absolute 10
0
5
Absolute 10
z
Absolute 10
Z
6
Vz
IR
Absolute 10
4
An SP bit scan is not necessary to read the result tracks.
interrupt bits indicate which channel has triggered an interrupt (group signal) when an initial or
end
setpoint
or a zero shift value,
parameterized
with an interrupt identifier, was exceeded.
9 – 66
1P
241 Equipment Manual
@
Siemens
AG
1989, Order No.: 6ES5 998-0KD21
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