WAGO-I/O-SYSTEM 750
Process Image
33
750-484 2 AI 4-20 mA HART Ex i
Manual
V 1.2.0 HW-Version 04, SW-Version 03
4.2
2 AI 4-20 mA, 1 HART Variable per Channel
With the PROFIBUS DP/V1 Fieldbus Coupler 750-333 or Fieldbus Controller
750-833, when one HART dynamic variable per channel is incorporated
(optionally PV, SV, TV, QV), the PROFIBUS telegram has a size of 12 bytes.
Table 23: PROFIBUS Telegram, 1 HART Variable per Channel
PROFIBUS Telegram (1 Variable per Channel)
Offset
Designation of Bytes
Remark
0
AI0
Analog input data Channel 1
1
2
HV0_0
1st HART variable Channel 1
3
4
5
6
AI1
Analog input data Channel 2
7
8
HV1_0
1st HART variable Channel 2
9
10
11
4.3
2 AI 4-20 mA, 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.