IFM Ecomat 300 AC1355, Supplementary Device Manual

Page: 195 / 248

The DPV1 command channel
DPV1 command 36dec (24hex):
acyclic standard read call of an AS-i slave with CTT2 profile
(S-7.5.5, S-7.A.5 or S-B.A.5)
11-41
Response from controllere (DPV1 slave) in case of an error (error detected by AS-i slave)
Bit
Word
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
1
reflected user ID command status = 6B
hex
2
TG 0 reserved F=1 reflected command number = 24
hex
3
CTT2 error code error code = E1
hex
Legend → page 11-3
Example:
Word no. Value [hex] Description
1 046B
04 = reflected user ID 4
6B = error during command execution
2
0124
or
8124
F=1: error during command execution
24 = reflected command number 36
the most significant bit TG changes after each execution
3 01E1
CTT2 error code 01
hex
= invalid index,
→
data sheet of the AS-i slave
error code E1
hex
= error detected by AS-i slave; CTT2 error
Possible CTT2 error codes:
Value [hex] Description
00 no error
01 invalid index
02 invalid length
03 command not implemented
04 used; it was not possible to complete the command in the specified time
05 command was not acknowledged