Communication System Manual 3WN6 Circuit-Breakers
70 Copyright Siemens AG 1998. All rights reserved. Version 1.0 (02/98)
FB SEND does not contains the designators EW2 and EW3.
Four data blocks are supplied with the example. Blocks DB80 and DB81 contain message headers
sorted according to message groups 0 and 1 and listed in the order of the message numbers. Message
headers contain the parameter identifier and the parameter subindex. Data blocks DBG1 (DB220) and
DBSZ (DB230) are used as data storage locations for the read and write requests to the circuit-breaker
in the example.
The size and conversion index are stored here, as is the value for a message number. The offset is set
to 0. The data read from 3WN6 are stored in DB220 and the write data are stored in DB230.
The slave data for this example are selected as follows:
• Slave address 8
• Inputs in S5 at addresses P144 to P155
• Outputs in S5 at addresses P156 to P167
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