Using The Output Table To Configure The States Of The Outputs - Siemens SIMATIC S7-200 System Manual

CPU and Input/Output Configuration
6.4

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 before 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. 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.
To access the output table configuration dialog box, select the menu command
View > System Block and click on the Output Table tab. See Figure 6-8. 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 values of the table are all zeroes.
System Block
Analog Input Filters
Port(s)
Freeze Outputs
Q0.x
Check this box if you
Q1.x
want to freeze
Q2.x
outputs selected
below in their last
Q3.x
state.
Q4.x
Q5.x
Q6.x
Q7.x
Configuration parameters must be downloaded before they take effect.
Not all PLC types support every System Block option. Press F1 to see which
options are supported by each PLC.
Figure 6-8
6-8
Pulse Catch Bits
Retentive Ranges
Password
7 6 5 4 3 2 1 0
Configuring the State of the Outputs
Background Time
Output Table Input Filters
Defaults
7 6 5 4 3 2 1 0
Q8.x
Q9. x
Q10.x
Q11.x
Q12.x
Q13.x
Q14.x
Q15.x
OK
S7-200 Programmable Controller System Manual
These outputs
will be on after
a run-to-stop
transition.
Cancel
A5E00066097-02