Dq Parameters; Maximum Test Period; Operating Mode Of The Output; Parameters Of The Channels - Siemens SIMATIC S7-1500 Manual

4.2.2

DQ parameters

4.2.2.1

Maximum test period

With this parameter, you specify the time within which the light, dark and switch on tests
should be performed throughout the module. When this time expires, the tests are repeated.
In case of a fault, the test time is reduced to 60 seconds.
● Use "1000 s", for example, to conserve your actuators.
● Use "100 s" to detect faults more quickly.
The "Maximum test period" parameter is a module parameter, which means the test cycle for
the entire fail-safe output module is performed within the configured maximum test time. If
the bit pattern test is not performed within the configured time (or the shortened test time of
60 seconds in case of an error), the module goes into the error state.
4.2.2.2

Operating mode of the output

Chooses between PM and PP switching mode for the outputs.
After re-parameterization of the operating mode, the power supply of the F-module must be
switched OFF and ON.
4.2.3

Parameters of the channels

4.2.3.1

Diagnostics: Wire break

You can use a wire break test to monitor the connection from the output channel to the
actuator.
Selecting this check box enables the wire break monitoring for the relevant channel.
You also have to activate the light test to detect a wire break with an output signal "0".
The diagnostics for wire break of the outputs is not designed for safety-related functions
and can therefore not be evaluated for safety-related activities.
4.2.3.2

Channel activated

If you select this check box, the corresponding channel is enabled for signal processing in
the safety program.
You can deactivate an unused channel with this parameter.
Digital output module F-DQ 8x24VDC/2A PPM (6ES7526-2BF00-0AB0)
Manual, 01/2016, A5E03858037-AA
WARNING
Parameters/address space
4.2 Explanation of parameters
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