Setting The Bus Coupler Parameters; Setting Parameters For The Modules - Aventics AES Serie Descripción De Sistema

84 AVENTICS | Bus Coupler AES/Valve Driver AV, EtherNet/IP | R412018139–BAL–001–AF
PLC Configuration of the Valve System
5.5

Setting the bus coupler parameters

The characteristics of the valve system are influenced by the different parameters that you set
in the controller. You can use these parameters to determine the responses of the bus coupler and
the I/O modules.
This section only describes the parameters for the bus coupler. The parameters of the I/O zone and
the pressure regulators are explained in the system description of the individual I/O modules or in
the operating instructions for the AV-EP pressure regulators. The system description of the bus
coupler explains the parameters for the valve driver boards.
The following parameters can be set for the bus coupler:
Response to an interruption in EtherNet/IP communication
Response to an error (backplane failure)
Sequence of the bytes
During cyclical operation, the parameters are set with the help of the parameter byte, which is
appended to the output data.
Bit 0 is not assigned.
The response to an EtherNet/IP communication problem is defined in bit 1 of the parameter byte.
Bit 1 = 0: If the connection is interrupted, the outputs are set to zero.
Bit 1 = 1: If the connection is interrupted, the outputs are maintained in the current state.
The response to an error in the backplane is defined in bit 2 of the parameter byte.
Bit 2 = 0: See section "5.5.2 Error-response parameters" on page 86, error response option 1
Bit 2 = 1: See error response option 2
The byte sequence of modules with 16-bit values is defined in bit 3 of the parameter byte (SWAP)
Bit 3 = 0: 16-bit values are sent in big-endian format.
Bit 3 = 1: 16-bit values are sent in little-endian format.
You can also write and read out the parameters during acyclic operation (unconnected messages).
However, acyclic writing is only advisable when the module is not exchanging cyclical data, since the
parameters in cyclical operation are immediately replaced by the cyclically transferred parameters.
You can write the bus coupler parameters acyclically with the following unconnected message.
Enter the following values in the PLC configuration software in the corresponding input field.
Table 12: Writing bus coupler parameters
Field name in the software window
Service code
Class
Instance
Attribute
5.5.1

Setting parameters for the modules

You can write and read out the parameters of the modules using the settings in Table 13. The module
parameters are not appended to the user data, they can only be written acyclically via unconnected
messages.
Note that the entire data length of a module parameter has to be transferred for the parameter
to be taken over. The parameter data length for the module can be found in the documentation
for the respective module.
Value in input field to write parameter
0x10
0xC7
0x01
0x01