Siemens S7-300 Installation And Operating Manual page 310

Diagnostics data of the signal modules
A.2 Structure and Content of Diagnostic Data
Bytes 7 to 28 with SM 326; F-DO 10 x DC 24V/2A PP
The following figure shows the content of bytes 7 to 28 of the diagnostic data for the
SM 326; F-DO 10 x DC 24V/2A PP.
Figure A-8
310
Diagnostics data bytes 7 to 28 with SM 326; F-DO 10 x DC 24V/2A PP
Installation and Operating Manual, 01/2010, A5E00085586-10
Fail-safe signal modules