Setting The Bus Coupler Parameters - Aventics DeviceNet Description Du Système Et Notice D'emploi

Table 11: Example assignment of input bytes (IB)
Byte Bit 7
IB1
IB2
IB3 8DI8M8
(module 9)
X2I8
IB4 8DI8M8
(module 10)
X2I8
IB5
IB6
IB7
IB8
IB9
IB10
IB11
IB12
AVENTICS | Bus Coupler AES/Valve Driver AV, DeviceNet | R412018138–BAL–001–AC
The input bytes are assigned as shown in Table 11. The diagnostic data is appended to the input data
when diagnosis is activated on the DIP switch and is always 8 bytes in length.
Bit 6 Bit 5
8DI8M8 8DI8M8
(module 9) (module 9)
X2I7 X2I6
8DI8M8 8DI8M8
(module 10) (module 10)
X2I7 X2I6
Diagnostic byte (bits 0 to 3: modules 9 to 12, bits 4 to 7 not assigned)
The length of the process data in the valve zone depends on the installed valve driver
(see section 6 Structure of the Valve Driver Data" on page 94). The length of the process data
in the I/O zone depends on the selected I/O module (see the system description
of the respective I/O modules).
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 (see class code 0xC7 in section 15.2.7
"AES object" on page 132). The parameters of the I/O zone and the pressure regulators are explained
in section 15.2.6 "Module object" on page 131 or 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 DeviceNet communication
Response to an error (backplane failure)
The response to a DeviceNet 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 90, error response option 1
Bit 2 = 1: See error response option 2
Bit 4 Bit 3
Pressure regulator LOW byte
Pressure regulator HIGH byte
8DI8M8 8DI8M8
(module 9) (module 9)
X2I5 X2I4
8DI8M8 8DI8M8
(module 10) (module 10)
X2I5 X2I4
Diagnostic byte (bus coupler)
Diagnostic byte (bus coupler)
Diagnostic byte (modules 1 to 8)
Diagnostic byte (not assigned)
Diagnostic byte (not assigned)
Diagnostic byte (not assigned)
Diagnostic byte (not assigned)
PLC Configuration of the Valve System
Bit 2 Bit 1
8DI8M8 8DI8M8
(module 9) (module 9)
X2I3 X2I2
8DI8M8 8DI8M8
(module 10) (module 10)
X2I3 X2I2
89
Bit 0
8DI8M8
(module 9)
X2I1
8DI8M8
(module 10)
X2I1