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2. Commissioning
2.4 Structure of emergency object
Festo supports a "PDO emergency object." The follow-
ing table applies in accordance with standard DS 401.
The PDO emergency object is sent by the CP valve
terminal in the following case:
– Undervoltage at the valves (< 20.4 V)
The emergency PDO is sent once when the undervolt-
age occurs and when the fault is rectified.
Byte
Emergency error code
3330 = V
< 20.4 V
val
Error register
00 = No error
81 = Generic and manufacturer error
Manufacturer specific error field reserved
Fig. 2/4: Structure of emergency object
CP-CO 9801NH
0
1
2
3
4
5
6
7
2-15
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