Festo VAEM-V-S8EPRS2 Operating Instructions Manual page 20

Parameterisation
Access Data
type
0x00 0x02
(read) (Uint16)
Tab. 22: Architecture of Modbus TCP: query status word
Examples of meanings of the statuses of the status word
The following combinatorics are based on the fact that irrelevant bits are omitted or occur without
a value in the table.
Combinatorics of the binary code
Bit Bit 7 Bit 6
valve
0 0
0 1
1 0
1
0
Tab. 23: Combinatorics of the states of the status word
set operating mode
The product can be operated in three different modes. They differ in cycle time, cycle start and trigger.
Fig. 9: Current curve and signal level in operating mode 1
20
System Addressi
parame- ng
ters param-
index eter sub-
index
0x02 0x00
Bit 4 Bit 3
1 0
0 1
Transfer Example of data area Modbus TCP
value
0x00 00 02 0002 00 00 0000 0000
0000 0000
Meaning
Bit 0
Product is in operating mode 1.
Product is in operating mode 2.
Product is in operating mode 3.
The valves that have state 1 in the
are selected valves.
0 Product is ready to go.
Error at all selected valves which have the
state 0 at the corresponding bit
Festo — VAEM-V-S8EPRS2 — 2021-10a
bit
valve
.
valve