Digital modules
8.7 SM 326; F-DO 10 x DC 24V/2A PP (6ES7326-2BF10-0AB0)
Fail-safe signal modules
Installation and Operating Manual, 01/2010, A5E00085586-10
165
8.7.2
SM 326; F-DO 10 x DC 24V/2A PP applications
Selecting the application
The figure below helps you to select an application based on availability and fail-safe
operation requirements. The next pages provide information on the module wiring for a
specific application, and on the parameters to set in
STEP 7 using the S7 Distributed Safety
or
S7 F Systems optional package.
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Figure 8-54 Application Selection - SM 326; F-DO 10 x DC 24V/2A PP
Test pulses of the light and dark test
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Figure 8-55 Light test, if assigned
The typical break between two test pulses is 0.5 seconds. There can be another test pulse
①
in between. The gap between the first test pulse and the additional test pulse is one
module cycle.