Sm 326; Do 10 X Dc 24V/2A Applications - Siemens S7-300 Installation And Operating Manual

8.6.2

SM 326; DO 10 x DC 24V/2A 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
S7 F Systems
or
Figure 8-44 SM 326; DO 10 x DC 24V/2A - Selecting an application
Avoiding dark periods when operating in safety mode
If you are using actuators that respond too fast (i.e. < 1 ms) to "dark period" test signals,
you can nonetheless use the internal test coordination by wiring two opposite outputs in
parallel using a series diode. Parallel wiring suppresses the dark periods.
See also
Parallel Connection of Two Outputs for Dark Period Suppression (Page 151)
Fail-safe signal modules
Installation and Operating Manual, 01/2010, A5E00085586-10
optional package.
WARNING
8.6 SM 326; DO 10 x DC 24V/2A (6ES7326-2BF01-0AB0)
STEP 7
Digital modules
S7 Distributed Safety
using the
145