IFM Ecomat 300 AC1355, Supplementary Device Manual

Page: 191 / 248

The DPV1 command channel
DPV1 command 35dec (23hex):
write parameter string of an AS-i slave with the profile S-7.4
11-37
Response from controllere (DPV1 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 = 6F
hex
2
TG S AS-i slave address F reflected command number = 23
hex
3...18
00 00
Legend → page 11-3
NOTE
The number of bytes to be sent must be divisible by 2 since the system always transmits only
multiples of 2 bytes in the S7.4 protocol.
The control bytes defined in profile 7.4 with follow bit and valid bit are automatically added by the
system. Therefore, without segmentation, this command is limited to 20 bytes of parameter data.
Larger data volumes must be divided into several segments.
Example:
Word no. Value [hex] Description
1 096F
09 = reflected user ID 9
6F = command status is "ready" (no fault)
2
0623
or
8623
x6
hex
= xx
00 011
0
2
→
slave address = 3(A),
23
hex
= reflected command number 35
dec
the most significant bit TG changes after each execution