Control Bit Assignment - Siemens SIMATIC OEM PP32 Equipment Manual

Control Bit Assignment

Keys
8
32
Figure 3-1 Numeration of keys on the Push Button Panel
Digital Inputs (DI)
1
16
Figure 3-2 Numeration of the digital inputs on the Push Button Panel
OEM Push Button Panel Equipment Manual
Release 08/98
This chapter explains the relationship between the control bits and the keys and
LEDs assigned to them on the Push Button Panels.
The following figures clarify the numeration of keys, LEDs and digital inputs/
outputs on the Push Button Panel, and their links to bits in the PLC.
1
Byte n
Byte n+1
Byte n+2
Byte n+3
25
Bit 7
Byte n
DI8
Byte n+1 DI16
Bit 7
T8
T16
T24
T32
3
Bit 0
T1
T9
T17
T25
Bit 0
DI1
DI9
3-1