Siemens SIMATIC S5 Equipment Manual page 112

3.5 Encoder Matching Module Absolute 4 (Synchronous–Serial)
Here the switch position (see section 7.3.1) must be considered!
1st case: Binary setpoints and actual binary values (up to 20 bits)
Typical processing time per setpoint/actual value comparison msec
2nd case:
Typical processing time per setpoint/actual value comparison msec
3rd case:
– <10 bits typical processing time
(Attention: Observe switch position according to
section 7.3.1; otherwise up to 3 msec maybe required)
– Up to 17 bits
4th case: Binary setpoints and actual Gray code values
Typical processing time per setpoint/actual value comparison msec
4. General
With the typical processing times of 1 msec per setpoint/actuaI value comparison, the following
(continuous) tolerances can be reached:
60 m/min.
—
6 m/min.
—
0.6 m/min.
—
0.06 m/min.
During transfer of new setpoints to the module, the actual value acquisition
is delayed and the indicated tolerances are increased.
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2 mm Tolerances
0.2 mm Tolerances
0.02 mm Tolerances
0.002 mm Tolerances
Technical Specifications
1.4 msec
minimum 3 msec
maximum 13 msec
8 – 5