Loading The Device Description File; Configuring The Bus Coupler In The Fieldbus System; Configuring The Valve System; Module Sequence - Aventics DeviceNet Description Du Système Et Notice D'emploi

86 AVENTICS | Bus Coupler AES/Valve Driver AV, DeviceNet | R412018138–BAL–001–AC
PLC Configuration of the Valve System
5.2

Loading the device description file

The EDS file with texts in English for the AES series bus coupler for DeviceNet is located
on the provided CD R412018133. The file can also be downloaded online from the AVENTICS
Media Center.
Each valve system is equipped with a bus coupler; some contain valves and/or I/O modules,
depending on your order. Basic settings for the module have been entered in the EDS file.
To configure the valve system PLC, copy the EDS file from CD R412018133 to the computer
containing the PLC configuration program.
Enter the IP address of the device and the absolute data lengths of the input and output data
in the PLC configuration program.
5.3

Configuring the bus coupler in the fieldbus system

Before you can configure the individual components of the valve system, you need to assign
an address to the bus coupler using your PLC configuration software.
1. Assign a unique address and baud rate to the bus coupler (see section 9.2 "Setting the address
on the bus coupler" on page 99).
2. Configure the bus coupler as a slave module.
5.4

Configuring the valve system

5.4.1

Module sequence

The input and output data used by the modules to communicate with the controller consist of a byte
string. The lengths of the valve system input and output data are calculated from the number
of modules and the data width of the individual module. The data is only counted in bytes. If a module
has less than 1 byte of input or output data, the left-over bits are "stuffed" to the byte boundary using
non-information bits.
Example: A valve driver board, 2x, with 4 bits of user data occupies 1 byte in the byte string, since
the remaining 4 bits are stuffed with non-information bits. The data of the next module therefore
starts after a byte boundary.
A maximum of 42 modules can be configured (max. 32 on the valve side and max. 10 in the I/O zone).
In the example (see Fig. 3), the modules are numbered to the right of the bus coupler
(AES-D-BC-DEV) in the valve zone, starting with the first valve driver board (module 1) and
continuing to the last valve driver board on the right end of the valve unit (module 9).
Bridge cards are not taken into account. Supply boards and UA-OFF monitoring boards occupy one
module (see module 7 in Fig. 3). The supply boards and UA-OFF monitoring boards do not add any
bytes to the input and output data. However, they are also counted, since they have diagnostic data,
which is transferred at the corresponding module position.
The numbering is continued in the I/O zone (module 10 to module 12 in Fig. 3). There, numbering
is continued starting from the bus coupler to the left end.
When the diagnosis function is activated, the diagnostic data of the valve system is 8 bytes in length
and is appended to the input data. The structure of this diagnostic data is described in Table 14.