Siemens SIMATIC OEM PP32 Equipment Manual page 34

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