Siemens SIMADYN D FM 458 User Manual page 70

• Telegram runtime:
• All of the telegrams are sent immediately one after the other.
• For instance, for a selected bus cycle time of 0.8 ms, the SL master
• Master-slave process data transfer:
• Dispatcher transceiver process data transfer:
• Data transfer rate:
• Bus topology:
• Max. distance between two nodes:
Application Module FM 458 - User Manual
6DD1904-0AE0 Edition 12.2001
6. 36
can transfer
– one double word each to a max. of 124 slaves/transceiver, or
– 4 double words each to a max. of 31 slaves/transceiver
The remaining times are intervals where a telegram is not sent (NOP).
– up to 200 slaves/transceiver can be addressed with address gaps
– up to 8 double words individually for each slave/transceiver
– own process data for each slave/transceiver
– up to 200 consecutively addressed transceivers
– up to 8 double words
– the same number of used channels for dispatcher and transceiver
(nodes with a max. number of double words defines the number of
channels for all)
11 Mbit/s
− 40 m for plastic fiber-optic cables, or
− 300 m for glass fiber-optic cables.
µ
s
Fiber-optic cable ring, each node as
signal amplifier
Configuring
4-15