Siemens SIMATIC ET 200S - Finely-graduated modular system

1PosInc/Digital
3.6 Functions of the 1PosInc/Digital
ET 200S Positioning
66 Operating Instructions, 05/2007, A5E00124871-04
Principle
What You Do Response of the 1PosInc/Digital
Provide the control interface with data corresponding to the
JOB.
Check the JOB_ACK feedback bit is at 0
Switch the JOB_REQ control bit from 1 to 0 The 1PosInc/Digital sets the feedback bit JOB_ACK = 1
This indicates that the initiation of the 1PosInc/Digital has
been detected and that the JOB will be executed when
JOB_ERR = 0.
• In the case of the function for evaluating a reference
signal, the 1PosInc/Digital sets the SYNC = 0 feedback
bit at the same time.
• In the case of the latch function, the 1PosInc/Digital sets
the feedback bit LATCH_DONE = 0 at the same time.
• All the other JOBs are thus executed.
The JOB is not executed when JOB_ERR = 1.
Switch the JOB_REQ control bit from 1 to 0 The 1PosInc/Digital sets the feedback bit JOB_ACK = 0
In the case of the function for evaluating a reference signal,
the 1PosInc/Digital sets the feedback bit SYNC = 1 when
the function has been executed.
In the case of the latch function, the 1PosInc/Digital sets the
feedback bit LATCH_DONE = 1 when the function has been
executed.
Only when JOB_ACK=0 can you activate a new JOB again.
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Figure 3-6 Control and Feedback Signals with JOBs