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Parameterisation
Access
Data type
W
U08
Tab. 27: Architecture of the ASCII telegram: select valve
Access
Data
type
0x01
0x01
(write)
(Uint08)
Tab. 28: Architecture of the Modbus TCP: select valve
Example of selecting valves 1, 4 and 6
Situation: previous valve selection is unknown and should be overwritten.
The binary code 101001 results from the selection of valves 1, 4 and 6. The binary code corre-
sponds to the decimal value 41.
1.
Interrogation of the selected valves using
– ASCII telegram: RU08: I19S0
– Using Modbus TCP: 0000 0000 0019 00 17 0000 0007 0000 0007 0E 00 01
0013 00 00 0000 0000 0000 0000
Ä Decimal value is returned.
2. Convert decimal value to binary code and interpret è Fig. 12.
3. Select the desired valves by setting the value 1 to the corresponding position in the binary
code. All non-selected valves have the value 0 at the corresponding positions.
4. Convert binary code into decimal or hexadecimal value.
5.
Transfer function using
– ASCII telegram: WU08: I19S0V41
– Using Modbus TCP: 0000 0000 0019 00 17 0000 0007 0000 0007 0E 01 01
0013 00 00 0000 0000 0000 0029
save setting values
Via the system parameter [Save setting values], valve-specific configuration parameters are saved on
the product and are immediately available again after the de-energised state. Thus, with renewed
energisation, the parameterisation does not have to be carried out again.
Festo — VAEM-V-S8EPRS2 — 2021-10a
Index I
Subindex S
19
0
System
Addressi
parame-
ng
ters
param-
index
eter sub-
index
0x13
0x00
Value V
89
(selected
valves 1, 4,
5 and 7)
Transfer
Example of data area Modbus TCP
value
0x59
01 01 0013 00 00 0000 0000
(selected
0000 0059
valves 1,
4, 5 and
7)
Example of an ASCII tele-
gram
WU08:I19S0V89
23
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