Siemens SIMADYN D Manual page 250

System- and communication configuring D7-SYS - SIMADYN D
Edition 12.2003
• 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
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).
• Master-slave process data transfer:
– 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
• Dispatcher transceiver process data transfer:
– 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)
• Data transfer rate:
• Bus topology:
• Max. distance between two nodes:
− 40 m for plastic fiber-optic cables, or
− 300 m for glass fiber-optic cables.
Communications configuring
µ
6. 36 s
11 Mbit/s
Fiber-optic cable ring, each node as
signal amplifier
3-161