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DP module 12: Extended command channel
Module 12, extended command 21dec (15hex):
read ID character string of an AS-i slave with the profile 7.4
9-26
Mux field
number of multiplexed data words
length: 3 bits
permitted values: 0…3
number = Mux field + 1
E type
characterises the slave concerning functionality and data structure
length: 5 bits
permitted values: 0…31
dec
0 = reserved
1 = transferred values are measured values
2 = transferred values are 16 digital bit values
3 = normal operation in 4-bit mode (4I/4O)
4…31
dec
= reserved
number of parameters
to be read
number of bytes which can be read as parameter character string
length: 8 bits
permitted values: 0…219
dec
0 = no parameter character string readable
1…219
dec
= number of bytes
EDT Read
reserved for later profiles
diag
slave supports the 7.4 diagnostic character string
length: 1 bit
permitted values: 0...1
0 = diagnostic character string is not supported
1 = diagnostic character string is supported
EDT Write
reserved for later profiles
number of parameters
to be written
number of bytes which can be written as parameter character string
length: 8 bits
permitted values: 0…219
dec
0 = no parameter character string readable
1…219
dec
= number of bytes
manufacturer
identification
defined manufacturer number assigned by AS-International
device-specific
information
as an option further bytes for manufacturer-specific device description
Response from controllere in the normal case:
Word no.
Value [hex]
Description
1
0
215
M=0: AS-i master 1
02 = reflected user ID 2
15 = reflected command number 21
0
604
slave address shifted 1 bit to the left
→
3 * 2 = 6
4-byte ID data
2
8
604
same as above, the most significant bit (TG) changes after each execution
3 2D01
1
st
word of the ID character string of slave 3(A)
4 0203
2
nd
word of the ID character string of slave 3(A)
… …
…
17
0008
the received ID character string is 8 bytes long
18 0000
reserved
Summary of Contents for Ecomat 300 AC1355
Page 8: ...8 15 Terms abbreviations 15 1 16 Index 16 1 ...
Page 12: ...On this manual Overview where is what 1 4 ...
Page 14: ...Safety instructions Functions and features 2 2 ...
Page 16: ...System requirements Required accessories 3 2 ...
Page 18: ...Getting started Set up Profibus DPV1 4 2 ...
Page 24: ...Menu Main menu Fieldbus Setup 6 4 ...
Page 52: ...Set up Finish set up 7 28 ...
Page 238: ...Technical data Profibus DP interface 13 2 ...
Page 246: ...Terms abbreviations 15 6 ...