1PosInc/Digital
3.6 Functions of the 1PosInc/Digital
ET 200S Positioning
Operating Instructions, 05/2007, A5E00124871-04
101
Error Acknowledgment EXTF_ACK
You must acknowledge the corrected errors (load voltage missing, short circuit of the sensor
supply and open circuit/short circuit of the sensor signals).
What You Do Response of the 1PosInc/Digital
Feedback bit ERR_2L+ = 1and/or feedback bit
ERR_ENCODER=1
Your control program detects the set feedback bit ERR_2L+
or ERR_ENCODER.
Execute your application-specific error response.
Eliminate the cause of the error.
Switch the EXTF_ACK control bit from 0 to 1 The 1PosInc/Digital sets the feedback bits ERR_2L+ = 0
and ERR_ENCODER = 0.
This tells you that the cause has been eliminated and
acknowledged.
If ERR_2L+ is still 1 and/or ERR_ENCODER = 1, the cause
of the error is not yet eliminated.
Switch the EXTF_ACK control bit from 1 to 0
In the case of constant error acknowledgment (EXTF_ACK = 1) or at CPU/Master Stop, the 1PosInc/Digital reports the
errors as soon as they are detected and deletes them as soon as they have been eliminated.
Parameters
Parameters Meaning Value range Default setting
Enables
Group diagnostics When group diagnostics is enabled, an encoder error
(ERR_ENCODER), no load voltage (ERR_2L+) or a
parameter assignment error will result in a channel-
specific diagnostics.
• Disable
• Enable
Disable
Encoder signal
diagnostics
Encoder signals A, /A and B, /B are monitored for
short circuit and wire break.
• On
• Off
On
Zero marker diagnostics Zero marker signals N, /N are monitored for short
circuit and wire break.
• On
• Off
On
Feedback Messages
Address Assignment
Byte 0 Bit 7: ERR_ENCODER
Bit 3: SYNC
Bit 2: POS_ DONE
Bit 1: POS_ERR
Bit 0: POS_ACK
Byte 4 Bit 7: ERR_2L+
Bit 1: JOB_ERR
Bit 0: JOB_ACK
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