
IP 266 Technical Description of the IP 266
2.7 IP 266 Monitors
The IP 266 is equipped with a number of monitors for monitoring its I/Os. Some of
these monitors are implemented at the hardware level, others at the software
level.
2.7.1 Encoder Monitor
The IP 266 supports hardware and/or software monitors, depending on the type
of encoder used.
The table below lists all available options:
Table 2-4. Encoder Monitor for 5 V and 24 V Encoders
Monitor 5 V encoder
Software
Symmetrical encoders are also
monitored for wirebreaks and
short-circuits, thus enabling a
faster response (even prior to
the conclusion of ten consecu-
tive IP cycles). A wirebreak or
short-circuit is also flagged via
the "Error in position control
loop" signal.
24 V encoder
The "Error in position control loop" signal is output when the
IP 266 fails to detect pulses in ten consecutive IP cycles
(10 x 3.75 ms).
Hardware
EWA 4NEB 812 6057-02
2-23
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