Lenze EPM-T1 Series - Addressing with Slot and Index

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