34 Process Image
WAGO I/O System 750
750-482/000-001 2AI 4-20mA HART NAMUR NE43
Manual
Version 1.0.2
4.3
2 HART Variables per Channel
With the PROFIBUS DP/V1 Fieldbus Coupler 750-333 or Fieldbus Controller
750-833, when two HART dynamic variables per channel are incorporated
(optionally PV, SV, TV, QV), the PROFIBUS telegram has a size of 20 bytes.
Table 23: PROFIBUS Telegram, Receive Direction, 2 HART Variable per Channel
PROFIBUS Telegram Input Data (2 Variable per Channel)
Offset
Byte Designation
Remark
0
AI0
Analog input data Channel 1
1
2
HV0_0
1
st
HART variable Channel 1
3
4
5
6
HV0_1
2
nd
HART variable Channel 1
7
8
9
10
AI1
Analog input data Channel 2
11
12
HV1_0
1
st
HART variable Channel 2
13
14
15
16
HV1_1
2
nd
HART variable Channel 2
17
18
19
There is no status byte in the process image for the “2 HART Variable per
Channel” operating mode.