Start-Up
02.2001
SLE / SLE-DP – SIMOLINK Encoder
GWE-477 763 4070.76 J
Siemens AG
6-16
Operating Instructions
SIMOVERT MASTERDRIVES
…
A
=
A
=
A
=
A
=
L
T
L
T
BE
I
F
I
F
I
F
I
F
FW
PQW
PIW
FW
0.4
0.0
0.5
0.1
0.6
0.2
0.7
0.7
0
256
256
2
Fig. 6-9
SLE-DP; Sample program
The important program lines in the example are:
T PQW 256
Write output data word (address change and activation) as
word command and
L PIW 256
Read input data word (status and error bits) as word command.
The word transfer commands ensure that the 2-byte data are
processed consistently.
6.4.5
Structure of PROFIBUS output data word
The PROFIBUS output data word (ODW) contains:
8 bits of read address, 3 bits of read channel and 1 bit of transfer
control
2-byte output data word
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
U
0
0
0
0
2
2
2
1
2
0
2
7
2
6
2
5
2
4
2
3
2
3
2
1
2
0
Control
bit
Reserved
Receive channel
Receive address
Fig. 6-10
SLE-DP; structure of PROFIBUS output data word
