Architecture Ascii Telegram - Festo VAEM-V-S8EPRS2 Operating Instructions Manual

Parameterisation
Function Index
I
ModbusTcp- 54
PortSoll
ModbusTcp- 55
PortIst
ModbusTcp- 56
TimeoutSoll
ModbusTcp- 57
TimeoutIst
Tab. 13 Valve control functions
7.2

Architecture ASCII telegram

1 Command area with access type and data
type
2 Separator
Fig. 4 Structure of the ASCII telegram
Command area
The access type and the data type are specified in the command area.
Identification area
The identification area consists of the index and the subindex. The index denotes the system paramet-
er. The subindex denotes the addressing at which the function of the system parameter is to be
executed.
Festo — VAEM-V-S8EPRS2 — 2020-07
Hex Data Value range
value type
index
36 Uint16 0 50265535
...
37 Uint16 0 50265535
...
38 Uint16 0 50265535
...
39 Uint16 0 50265535
...
Default value
502 (decimal)
502 (decimal)
0
(Timeout inact-
ive)
0
3 Identification area with index and sub-index
4 Transfer value
5 Command end character
Description
Change Modbus TCP
port.
In the event of a
change, a restart is
required.
Display Modbus TCP
port.
Change TCP/IP connec-
tion timeout.
Minimum timeout is
1000 ms.
Values between
0 1000 are increased
...
to 1000.
Display TCP/IP connec-
tion timeout.
13