Siemens SIMATIC TDC - Page 170

Communication modules
6.6 CP53M0 coupling module
SIMATIC TDC hardware
170 System Manual, 08/2017, A5E01114865-AL
LED display
State
Glowing
*)
Master mode:
Acknowledgment of data access from the slave at X1/X2
Slave mode:
No function
H7
Off
Receiver, FOC interface X1/X2 has no valid receive signals
On
Receiver, FOC interface X1/X2 has a valid receive signal
H8 Off Master mode:
Receiver FOC interface X3/X4 has no valid receive signal
Slave mode:
No function
On Master mode:
Receiver FOC interface X3/X4 has valid receive signal
Slave mode:
No function
*)
The brightness of the LED indicates the intensity of periodic data traffic.
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