Cyclic Data Transmission; Overview Of The Modules; Description Of The Modules - Endress+Hauser Proline Promass I 300 PROFINET Operating Instructions Manual

Proline Promass I 300 PROFINET
Endress+Hauser
9.3

Cyclic data transmission

9.3.1

Overview of the modules

The following tables shows which modules are available to the measuring device for cyclic
data exchange. Cyclic data exchange is performed with an automation system.
Measuring device
Module
Analog Input module →  77
Application-specific
Input module
Digital Input module →  79
Diagnose Input module →  80
Analog Output module →  82
Digital Output module →  83
Totalizer 1 to 3 →  81
Heartbeat Verification module →  84
Concentration →  85
9.3.2

Description of the modules

The data structure is described from the perspective of the automation system:
• Input data: Are sent from the measuring device to the automation system.
• Output data: Are sent from the automation system to the measuring device.
Analog Input module
Transmit input variables from the measuring device to the automation system.
Analog Input modules cyclically transmit the selected input variables, along with the
status, from the measuring device to the automation system. The input variable is depicted
in the first four bytes in the form of a floating point number as per the IEEE 754 standard.
The fifth byte contains status information pertaining to the input variable.
Slot
1 to 14, 24 to
26, 27
→  79 31, 32
1 to 14
1 to 14
18, 19, 20, 29,
30
21, 22, 24 to 26
15 to 17
23
28
System integration
Direction
Control system
Data flow
→
→
→
→
←
PROFINET
←
←
→
←
→
←
→
77