The DPV1 command channel
DPV1 command 38dec (26hex):
acyclic 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)
11-46
Response from controllere (DPV1 slave) in the normal case
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 L32
reserved
F=0
reflected command number = 26
hex
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
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 066F
06 = reflected user ID 6
6F = command status is "ready" (no fault)
2
0026
or
8026
0x
hex
/ 8x
hex
→
L32 = 0
→
number of parameter bytes < 32
26 = reflected command number 38
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
Содержание Ecomat 300 AC1355
Страница 8: ...8 15 Terms abbreviations 15 1 16 Index 16 1 ...
Страница 12: ...On this manual Overview where is what 1 4 ...
Страница 14: ...Safety instructions Functions and features 2 2 ...
Страница 16: ...System requirements Required accessories 3 2 ...
Страница 18: ...Getting started Set up Profibus DPV1 4 2 ...
Страница 24: ...Menu Main menu Fieldbus Setup 6 4 ...
Страница 52: ...Set up Finish set up 7 28 ...
Страница 76: ...DP module 7 Command channel Module 7 command 63dec 3Fhex no operation command without function 8 24 ...
Страница 226: ...The DPV1 command channel DPV1 command 105dec 69hex read the device properties of the controllere 11 72 ...
Страница 238: ...Technical data Profibus DP interface 13 2 ...
Страница 246: ...Terms abbreviations 15 6 ...
Страница 248: ...Index 16 2 System Save parameters 12 10 Target 15 5 TFR Register 14 2 Troubleshooting 14 1 Watchdog 15 5 ...