Aventics DeviceNet Description Du Système Et Notice D'emploi page 88

88 AVENTICS | Bus Coupler AES/Valve Driver AV, DeviceNet | R412018138–BAL–001–AC
PLC Configuration of the Valve System
Table 10: Example assignment of output bytes (OB)
Byte Bit 7
OB1 Valve 4
Sol. 12
OB2 –
OB3 –
OB4 Valve 13
Sol. 12
OB5
OB6
OB7 Valve 17
Sol. 12
OB8 Valve 21
Sol. 12
OB9 –
OB10 8DO8M8
(module 11)
X2O8
1)
Bits marked with "–" are filler bits. They may not be used and are assigned the value "0".
The data lengths of the bus coupler and the modules are shown in Table 9.
Table 9: Calculation of the valve system data lengths
Module
Module
number
1 Valve driver board, 4x
2 Valve driver board, 2x
3 Valve driver board, 3x
4 Valve driver board, 4x
5 Pressure regulator
6 Valve driver board, 4x
7 Electrical supply
8 Valve driver board, 4x
9 Valve driver board, 3x
10 Input module (1 byte of user data)
11 Input module (1 byte of user data)
12 Output module (1 byte of user data)
– bus coupler
1)
Only with activated diagnosis
2)
Only with activated diagnosis, otherwise 4 bytes
After the PLC configuration, the output bytes are assigned as shown in Table 10. The bus coupler
parameter byte is appended to the output bytes of the modules.
1)
Bit 6 Bit 5
Valve 4 Valve 3
Sol. 14 Sol. 12
– –
– Valve 9
Sol. 12
Valve 13 Valve 12
Sol. 14 Sol. 12
Valve 17 Valve 16
Sol. 14 Sol. 12
Valve 21 Valve 20
Sol. 14 Sol. 12
– Valve 24
Sol. 12
8DO8M8 8DO8M8
(module 11) (module 11)
X2O7 X2O6
Output data
1 byte of user data
1 byte
(4 bits of user data plus
4 filler bits)
1 byte
(6 bits of user data plus
2 filler bits)
1 byte of user data
2 byte of user data
1 byte of user data
–
1 byte of user data
1 byte
(6 bits of user data plus
2 filler bits)
–
–
1 byte of user data
Total length of output data:
10 bytes
Bit 4 Bit 3
Valve 3 Valve 2
Sol. 14 Sol. 12
– Valve 6
Sol. 12
Valve 9 Valve 8
Sol. 14 Sol. 12
Valve 12 Valve 11
Sol. 14 Sol. 12
Pressure regulator LOW byte
Pressure regulator HIGH byte
Valve 16 Valve 15
Sol. 14 Sol. 12
Valve 20 Valve 19
Sol. 14 Sol. 12
Valve 24 Valve 23
Sol. 14 Sol. 12
8DO8M8 8DO8M8
(module 11) (module 11)
X2O5 X2O4
Input data
–
–
–
–
2 byte of user data
–
–
–
–
1 byte of user data
1 byte of user data
–
8 bytes of diagnostic data
Total length of input data:
2)
12 bytes
Bit 2 Bit 1
Valve 2 Valve 1
Sol. 14 Sol. 12
Valve 6 Valve 5
Sol. 14 Sol. 12
Valve 8 Valve 7
Sol. 14 Sol. 12
Valve 11 Valve 10
Sol. 14 Sol. 12
Valve 15 Valve 14
Sol. 14 Sol. 12
Valve 19 Valve 18
Sol. 14 Sol. 12
Valve 23 Valve 22
Sol. 14 Sol. 12
8DO8M8 8DO8M8
(module 11) (module 11)
X2O3 X2O2
1)
Bit 0
Valve 1
Sol. 14
Valve 5
Sol. 14
Valve 7
Sol. 14
Valve 10
Sol. 14
Valve 14
Sol. 14
Valve 18
Sol. 14
Valve 22
Sol. 14
8DO8M8
(module 11)
X2O1