
4 Functional Mechanisms of the Application
4.3 HMI interface
Monitoring of 24 V load circuits
Entry-ID: 61450284, V1.1, 05/2014
22
C
o
p
y
ri
g
h
t
S
ie
m
e
n
s
A
G
2
0
1
4
A
ll
ri
g
h
ts
re
s
e
rv
e
d
4.3
HMI interface
The data required for the visualization is stored in variables of data block DATA
(DB2) (see
). These variables are integrated into WinCC V12 SP1 and
form the HMI interface.
Table 4-6
Variable
Data type
Address
Description
HMI_RESET
BOOL
DB2.DBX0.1
Controls the remote reset input
(RST) of the PSE200U module
ERROR_MESSAGE BOOL
DB2.DBX0.5
Error of the PSE_DIAG (FB50)
block
CHANNEL_STATE BYTE
DB2.DBB1
Bit 0: State OUT 1
Bit 1: State OUT 2
Bit 2: State OUT 3
Bit 3: State OUT 4
Bit 4 to bit 7: Reserved
STATUS_SAVE
WORD
DB2.DBW4
Status of the PSE_DIAG (FB50)
block