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Communication modules
6.6 CP53M0 coupling module
SIMATIC TDC hardware
System Manual, 08/2017, A5E01114865-AL
171
6.6.4
Application notes and immunity to interference
●
If CP53M0 is operated in master mode, the clock trigger, alarm trigger, or basic sampling
time trigger signals are transmitted.
●
These signals are received on the CP53M0 in slave mode and routed to the backplane
bus in accordance with the parameterization in HWConfig or CFC configuration (clock
trigger).
●
A CS22 at a CP53M0 in master mode receives the clock trigger, alarm trigger, or basic
sampling time trigger signals.
●
A CP53M0 in slave mode on a CS12/CS13/CS14 receives the clock trigger, alarm trigger,
or basic sampling time trigger signals.
●
If several CP53M0 in the same rack are configured for operation in slave mode and route
the alarm interrupt to the backplane bus, the CPU cannot identify the CP53M0 that
triggered the alarm interrupt.
●
Interference-proof operation is only possible if the CP53M0 is firmly attached to the rack.
Insert the module and then bolt it onto the rack accordingly (two screw heads, see
"Control and display elements (Page 167)").
●
The racks may be switched on and off independently. The coupling is automatically
restored.
●
The module may not be inserted or removed while the rack is on live voltage.
●
Before switching on power to a rack, verify that all connectors of the FOC couplings
involved have been inserted.
●
Removal and insertion of the fiber-optic cables is not permitted during operation.
●
If no fiber-optic cables are inserted, protect the transmit and receive terminals using
appropriate caps.
Note
See also:
•
For more information on fan operation, refer to chapter "Rack (Page 39)".
•
For more information on EMC and environmental conditions, refer to chapter "General
technical specifications (Page 37)".
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