Data Exchange Example - HMS Anybus Communicator 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.
Anybus Communicator PROFINET User Manual
PLC Memory (Inputs) PLC Memory (Outputs)
Actual Temperature
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
0x000
Actual Temperature
0x1FF
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-
Output Register
Actual Temperature
PLC (PROFINET IO Controller)
The PLC exchange data between the internal
Temperature Setpoint
PLC memory and the slaves (in this case the
ABC) on the PROFINET network.
Output Data
0x200
Temperature Setpoint
(not used in this example)
0x3FF
Serial Device - Temperature Regulator
Regulator.
Input Register
The Temperature Regulator has two
registers, holding the Setpoint Temperature
Temperature Setpoint
and the Actual Temperature respectively.
Basic Operation 17
ABC
General Data
0x400
0x???
Doc: HMSI-27-309, Rev. 3.11