Notes On The Plc Interface Signal Address Representation - Siemens SINUMERIK 808D ADVANCED Diagnostic Manual

Drive alarms/messages
300 000 - 399 999
Drive alarms (Page 509)
PLC alarms/messages
400 000 - 499 999
PLC alarms (Page 521)
2.3

Notes on the PLC interface signal address representation

Currently, PLC interface signal addresses are represented by the V structure on the HMI while
the manual shows them by the DB structure.
See the following table for the relationship between the two representations.
V Structure
Access
Bit
Byte
Word
Double Word
Diagnostics Manual
Diagnostics Manual, 06/2015, 6FC5398-6DP10-0BA2
2.3 Notes on the PLC interface signal address representation
General drive alarms
General PLC alarms
Example
V38000002.1
VB38000002
VW38000002
VD38000004
DB Structure
Example
DB3800.DBX2.1
DB3800.DBB2
DB3800.DBW2
DB3800.DBD4
Introduction
Access
Bit
Byte
Word
Double word
11