Lenze EPM−T9XX Modular system Manual de usuario Pagina 269

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Transmitting parameter data
Addressing with slot and index
10
Networking via PROFIBUS−DP
10.5
10.5.3
L
10.5−3
EDSPM−TXXX−9.0−11/2009
10.5.3 Addressing with slot and index
) Note!
Prerequisite for addressing data via slot and index:
l Master and slave have to support the communication protocol
PROFIBUS−DP−V1.
The connection can be established via a class 1 master
(DPM 1) or class 2 masters (DPM 2).
l The function blocks SFB 52 (read) and SFB 53 (write) must be
integrated in the slaves PROFIBUS Gateway and PROFIBUS
GatewayECO.
For further information, refer to the documentation on SFB 52
and SFB 53 (Siemens).
PROFIBUS interprets a slave as a logic entity with a physical modular structure.
Module PROFIBUS
Gateway
8×digital
output 1A
16×digital
output 1A
8×digital
input
4×analog
input
...
Slot number 0 1 2 3 4 ...
Index 0 ... 255 0 ... 255 0 ... 255 0 ... 255 0 ... 255 ...
Request ...
1 byte
(slot number 1)
2 bytes
(slot number 2)
...
Response
...
1 byte
(slot number 3)
8 bytes
(slot number 4)
...
Fig. 10.5−3 Example of slave configuration
Description
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