Description Of The Core Functionality - Siemens SIMATIC S7-300 CPU Manual

2 Solution

2.2 Description of the core functionality

2.2 Description of the core functionality
Principle of the core functionality
The diagram below shows the sequence of the core functionality in this application.
Figure 2-2
OUT 4
OUT 3
OUT 2
OUT 1
0
S
PSE 200U
The following table describes the process.
Table 2-3
No.
1 The PSE_DIAG (FB50) block reads the signal of the state output (S) of the PSE200U module
via its IMPULSE input and evaluates it.
2 At its CHANNEL_STATE output, the PSE_DIAG (FB50) block indicates the state of outputs
OUT 1 to OUT 4 of the PSE200U module.
3 The status information indicated at the CHANNEL_STATE output is saved in data block DATA
(DB2).
4 The states are read from data block DATA (DB2) and displayed at the SIMATIC Panel on
several screens.
Furthermore, messages on the state of output OUT 1 to OUT 4 are indicated at the SIMATIC
Panel.
Monitoring of 24 V load circuits
Entry-ID: 61450284, V1.1,
0 1 1
1
IMPULSE
05/2014
S7-CPU
2
CHANNEL_STATE
PSE_DIAG
Action
3
DATA
4
SIMATIC Panel
10