IFM Ecomat 300 AC1355, Supplementary Device Manual

Page: 124 / 248

DP module 12: Extended command channel
Module 12, acyclic command 38dec (26hex):
manufacturer-specific read call of an AS-i slave with CTT2 profile
(S-7.5.5, S-7.A.5 or S-B.A.5)
9-48
Response from controllere (gateway) in the normal case
Bit
Word
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
1
E=0
S
0/1
M
0/1
reflected user ID reflected command number = 26
hex
2
TG L32 reserved F=0 reserved
3
parameter byte 1 parameter byte 0
4…16
parameter bytes 2...27
17
parameter byte 29 parameter byte 28
18
parameter byte 31 or
number of bytes read
parameter byte 30
Legend → page 9-3
NOTE
The high byte in the 18th word contains the number of parameter bytes read as long as the number is
< 32 (L32 = 0).
If the length is 32 (= maximum possible length), the bit L32 is set and the high byte in the 18th word
contains the 32nd parameter byte.
Example:
Word no. Value [hex] Description
1 0626
E=0: no error detected
M=0: AS-i master 1
06 = reflected user ID changes e.g. to 6
26 = reflected command number 38
2
0000
or
8000
L32=0: number of parameter bytes < 32
dec
F=0: no error
the most significant bit (TG) changes after each execution
3 1234 1st and 2nd parameter byte of index 9 in slave 4
4 5678 3rd and 4th parameter byte of index 9 in slave 4
5…17 0000 invalid / not used
18 0400 4-byte parameter string was read