HMS Anybus Communicator - Data Exchange Example

Basic Operation 17
Doc: HMSI-27-309, Rev. 3.11Anybus Communicator PROFINET User Manual
2.2.2 Data Exchange Example
In the following example, a temperature regulator on the subnetwork exchanges information with a PLC
on the higher level network, via the internal memory buffers in the module.
The Temperature Regulator has two
registers, holding the Setpoint Temperature
and the Actual Temperature respectively.
The PLC exchange data between the internal
PLC memory and the slaves (in this case the
ABC) on the PROFINET network.
The ABC copies the Output Register of
the Temperature Regulator to the Input-
Data area.
The ABC copies the Temperature-
Setpoint from the Output Data area to
the Input Register in the Temperature-
Regulator.
The PLC Memory associated with
the ABC is exchanged;
Data from the Input Data area is copied to
PLC Input Memory, and PLC Output
Memory is copied to the Output Data
area.
Input Data
ABC
Serial Device - Temperature Regulator
PLC (PROFINET IO Controller)
Output Data General Data
0x000 0x200
0x1FF 0x3FF
0x400
0x???
Output Register Input Register
Temperature Setpoint
Temperature Setpoint
Actual Temperature
Actual Temperature
PLC Memory (Inputs) PLC Memory (Outputs)
Temperature Setpoint
Actual Temperature
(not used in this example)
PROFINETSubnetwork