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14
AVENTICS | VS LP04 DDL | R402000483-BDL-001-AD
If the address 0 (automatic addressing) has been
set, the data section of the output data comes after
the data from the VS LP04 and before the data of the
output module and the analog module.
Depending on the set length, the valve terminal
system requires 1–4 bytes in the output section of
the pilot control.
Table 2:
Output bits
Bit
Byt
Affec
e
ts
7
6
X
Valve
4
4
Coil
12
14
X+1
8
8
Valve
Coil
12
14
X+2
Valve
12
12
Coil
12
14
X+3
Valve
16
16
Coil
12
14
The valve terminal system does not take up any data
in the input section, but it does take up data in the
diagnosis section of the DDL.
Byte X is the start address of the output section for
this module in the pilot control.
5
4
3
2
3
3
2
2
12
14
12
14
12
7
7
6
6
12
14
12
14
12
11
11
10
10
12
14
12
14
12
15
15
14
14
13
12
14
12
14
12
3.4 Diagnosis
3.4.1 LED diagnosis
Table 3:
Bezeichnun
g
POWER
1
0
SUPPLY
1
1
SENSOR
14
5
5
14
9
9
POWER
14
SUPPLY
13
VALVE
14
DDL
The thresholds for the power supply (electronics/
valves) are at 19.2 V/21.6 V for undervoltage and
28.8 V/26.4 V for excess voltage. The voltage is
measured at the DDL OUT (XPD1) plug.
The DDL LED indicates if no useful data
communication is taking place in the DDL. This could
happen due to the following reasons:
The set baud rates of the DDL modules are not
the same
Gaps in addressing
Same address assigned to 2 modules
Addresses 0 and 1-14 have both been assigned
Configuration has been changed while the
system was running.
3.4.2 Software diagnosis
The diagnosis data of the valve terminal system is
located in the diagnosis data area and corresponds
to the DDL addresses. If the address 0 (automatic
addressing) has been set, then the data section of
the diagnosis data comes after the data from the VS
LP04 and before the data from the input and output
modules and the analog module. The length of the
diagnosis section is 1 byte plus the output data
length in bytes.
The first byte is the standard diagnosis, the second
part contains up to 4 bytes output diagnosis,
corresponding to the expansion stage.
Overview of the DDL LED display
Farbe der
Bedeutung
LED
Green on
Voltage within the
tolerance range
Green
Voltage above or below
flashing
the tolerance range
Green off
No voltage at the
connection for the
sensor supply
Green on
Voltage within the
tolerance range
Green
Voltage above or below
flashing
the tolerance range
Green off
No voltage at the
connection for the
sensor supply
Red on
No DDL communication
(see below)
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