IFM Ecomat 300 AC1355, Supplementary Device Manual

Page: 102 / 248

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