Acyclic Profibus Services; Table 29: Profibus Telegram, Acyclic Profibus Services - WAGO I/O-SYSTEM 750 Manual

WAGO-I/O-SYSTEM 750
750-484 2AI 4-20mA HART Ex i
Table 28: PROFIBUS Telegram, Receive Direction, 4 HART Variable per Channel
Offset
28
29
30
31
32
33
34
35
There is no status byte in the process image for the "4 HART Variable per
Channel" operating mode.
4.8

Acyclic PROFIBUS Services

With the PROFIBUS DP/V1 Fieldbus Coupler 750-333 or Fieldbus Controller
750-833, only the two cyclic AI process values are mapped into the process
image of the connected coupler in the "Acyclic PROFIBUS services" mode.
HART-via-DPV1-services are passed on using acyclic PROFIBUS services.

Table 29: PROFIBUS Telegram, Acyclic PROFIBUS Services

Offset
0
1
2
3
Depending on how the PROFIBUS coupler/controller is parameterized using the
GSD, the control and status bytes can also be transmitted via PROFIBUS in
addition to the data bytes provided by the HART I/O module.
PROFIBUS Telegram Input Data (4 Variable per Channel)
Byte Designation
TV1
QV1
PROFIBUS Telegram (Acyclic PROFIBUS Services)
Designation of Bytes
AI0
AI1
Process Image
Remark
Tertiary variable Channel 2
Quartary variable Channel 2
Remark
Analog input data Channel 1
Analog input data Channel 2
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Manual
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