Lenze EPM−T9XX Modular system Bedienungsanleitung Seite 270

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Transmitting parameter data
Addressing with slot and index
10
Networking via PROFIBUS−DP
10.5
10.5.3
L
10.5−4
EDSPM−TXXX−9.0−11/2009
Data addressing is based on identifications defining the module type as input,
output or a combination of the two. The identifications as a whole define the
configuration of the slave. When the slave is initialised, the configuration is
checked by DPM 1.
The data blocks enabled for read or write access are assigned to modules and can
be addressed by means of slot number and index.
l The slot number addresses the module:
Slot number = 0 addresses data of PROFIBUS Gateway or PROFIBUS
GatewayECO.
Slot number > 0 addresses data of the electronic modules.
l The index addresses the data blocks of the module:
One data block may have a size of up to 244 bytes (4 bytes header,
240 bytes user data).
The length specification in the read or write command also allows for
reading or writing parts of a data block.
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