Siemens SIMATIC S5 TD 390 Manuel page 96

Creating a PLC Program for the TD 390
The figure below shows how to enter the selected message in the
message buffer of the TD 390 controlled by the data in the parametric
DB.
PLC
Parametric DB
(e.g. DB5)
KS = 'MASKTD'
KY = 002,020
KY = 000,052
KY = 003,053
KY = 006,054
KY = 009,055
KY = 012,056
.
.
Message buffer TD 390
MESSAGE 3
8-4
Flag byte
0 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0
1 1.7
2 2.7
DBxy (messages)
(here DB52)
MESSAGE 1
MESSAGE 2
MESSAGE 3
.
.
.
.
C79000–K8576–C292–01
Flag bit
set
TD 390
TD 390