Using The Output Table To Configure The States Of The Outputs - Siemens Simatic S7-200 System Manual
Programmable controller
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Also See for Simatic S7-200:
- System manual (607 pages) ,
- Getting started (65 pages) ,
- Manual (55 pages)
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Input/Output Control
8.3
Using the Output Table to Configure the States of the Outputs
The S7-200 CPU provides the capability either to set the state of the digital output points to
known values upon a transition to the STOP mode, or to leave the outputs in the state they
were in prior to the transition to the STOP mode.
The output table is part of the CPU configuration data that is downloaded and stored in the
CPU memory.
The configuration of output values applies only to the digital outputs. Analog output values
are effectively frozen upon a transition to the STOP mode. This occurs because your
program is responsible for updating the analog outputs as required. The CPU does not
update the analog inputs or outputs as a system function. No internal memory image is
maintained for these points by the CPU.
Select the menu command CPU
the output table configuration dialog. See Figure 8-5. You have two options for configuring
the outputs:
If you want to freeze the outputs in their last state, choose the Freeze Outputs box and
click on "OK."
If you want to copy the table values to the outputs, then enter the output table values.
Click the checkbox for each output bit you want to set to On (1) after a run-to-stop
transition, and click on "OK" to save your selections.
The default setting of the CPU is the mode of copying the output table values to the outputs.
The default values of the table are all zeroes.
CPU Configure
Port 0
Output Table
Freeze Outputs
Q0.x
Q1.x
Q2.x
Q3.x
Q4.x
Q5.x
Q6.x
Q7.x
Configuration parameters must be downloaded before they take effect.
Figure 8-5
8-6
Configure... and click on the Output Table tab to access
Retentive Ranges
Password
Port 1
Input Filters
7
6
5
4
7
6
5
4
7
6
5
4
7
6
5
4
7
6
5
4
7
6
5
4
7
6
5
4
7
6
5
4
Configuring the State of the Outputs
Defaults
3
2
1
0
3
2
1
0
These outputs
3
2
1
0
will be on after
a run-to-stop
3
2
1
0
transition.
3
2
1
0
3
2
1
0
3
2
1
0
3
2
1
0
OK
S7-200 Programmable Controller System Manual
C79000-G7076-C230-02
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