Communication modules
6.4 CP52IO GDM interface module
SIMATIC TDC hardware
150 System Manual, 08/2017, A5E01114865-AL
Control and display elements
LED displays
The CP52IO GDM interface module is equipped with 8 LEDs. These indicate whether or not
valid frames are received or transmitted at GDM access module CP52A0.
Table 6- 16 LED displays of the CP52IO GDM interface module
FOC interface 1 transmits data
H2 (yellow) FOC interface 1 receives data
FOC interface 2 transmits data
H4 (yellow) FOC interface 2 receives data
FOC interface 3 transmits data
FOC interface 3 receives data
FOC interface 4 transmits data
FOC interface 4 receives data
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