Siemens SIMATIC OEM PP32 - Page 34

3-2
OEM Push Button Panel Equipment Manual
Release 08/98
LEDs
Bit 7 Bit 0
L8 L1
L8 L1
L16 L9
L16 L9
Byte n
Byte n+1
Byte n+2
Byte n+4
Red
Green
Red
Green
8
1
32
25
L24 L17
L24 L17
L32 L25
L32 L25
Byte n+5
Byte n+6
Byte n+7
Byte n+8
Red
Green
Red
Green
Figure 3-3 Numeration of the LEDs on the Push Button Panel
1
16
Digital Outputs (DO)
Bit 7 Bit 0
Byte n
Byte n+1
Byte n+2
Byte n+4
DO8
DO1
DO8
DO1
DO16
DO9
DO16
DO9
Figure 3-4 Numeration of the digital outputs on the Push Button Panel
The following table indicates the data area for keys, LEDs, digital inputs and
digital outputs of the Push Button Panel in the PLC:
Data area OEM PP32 OEM PP32/OP17
Keys 4 Bytes
Digital inputs 2 Bytes
LEDs 8 Bytes
Digital outputs 4 Bytes
Total 18 Bytes
A data area for the entire length must be set up, even when the full functional
capacity of the unit is not used.
Control Bit Assignment