Siemens SIMATIC S7 Functional Safety Manual page 9

5.4 Configuring SM 1226 F-DQ 4 x 24 VDC DQ and channel parameters ................................ 111
5.5 Configuring SM 1226 F-DQ 2 x Relay DQ and channel parameters .................................... 114
6 Fail-Safe signal module (SM) diagnostics .............................................................................................. 115
6.1 Reactions to faults ................................................................................................................ 115
6.2 Fault diagnostics ................................................................................................................... 119
6.2.1 Diagnostics by LED display .................................................................................................. 120
6.2.2 Fault types, causes, and corrective measures ..................................................................... 125
A Technical specifications ......................................................................................................................... 131
A.1 General technical specifications ........................................................................................... 131
A.1.1 Standards compliance .......................................................................................................... 131
A.1.2 Fail-Safe standards and approvals ....................................................................................... 131
A.1.3 PROFIsafe compatibility ....................................................................................................... 131
A.1.4 General certifications ............................................................................................................ 132
A.1.5 Industrial environments ......................................................................................................... 135
A.1.6 Electromagnetic compatibility ............................................................................................... 135
A.1.7 Surge immunity ..................................................................................................................... 136
A.1.8 Environmental conditions ...................................................................................................... 137
A.1.9 Protection class ..................................................................................................................... 138
A.1.10 Degree of protection ............................................................................................................. 138
A.1.11 Rated voltages ...................................................................................................................... 139
A.1.12 Reverse voltage protection ................................................................................................... 140
A.1.13 DC outputs ............................................................................................................................ 140
A.1.14 Relay electrical service life ................................................................................................... 141
A.1.15 Internal CPU memory retention ............................................................................................ 142
A.1.16 Overvoltage Category III ....................................................................................................... 143
A.2 Fail-Safe CPU technical specifications ................................................................................. 144
A.2.1 Fail-Safe additions/exceptions .............................................................................................. 144
A.2.1.1 Areas of application .............................................................................................................. 144
A.2.1.2 Restrictions with "READ_DBL" and "WRIT_DBL"................................................................. 144
A.2.1.3 Restrictions to configuring the retentive behavior of data blocks ......................................... 144
A.2.1.4 Probabilities of failure............................................................................................................ 144
A.2.1.5 Web server ............................................................................................................................ 145
A.2.1.6 Using a memory card with the S7-1200 Fail-Safe CPU ....................................................... 147
A.2.2 CPU 1214FC ......................................................................................................................... 149
A.2.2.1 General specifications and features ..................................................................................... 149
A.2.2.2 Performance ......................................................................................................................... 151
A.2.2.3 Timers, counters and code blocks supported ....................................................................... 151
A.2.2.4 Digital inputs and outputs ..................................................................................................... 153
A.2.2.5 Analog inputs ........................................................................................................................ 155
A.2.2.6 CPU 1214FC wiring diagrams .............................................................................................. 156
A.2.3 CPU 1215FC ......................................................................................................................... 160
A.2.3.1 General specifications and features ..................................................................................... 160
A.2.3.2 Timers, counters and code blocks supported ....................................................................... 161
A.2.3.3 Digital inputs and outputs ..................................................................................................... 163
A.2.3.4 Analog inputs and outputs .................................................................................................... 165
A.2.3.5 CPU 1215FC wiring diagrams .............................................................................................. 168
A.3 Fail-Safe signal module (SM) technical specifications ......................................................... 171
A.3.1 Fail-Safe signal modules (SM) .............................................................................................. 171
S7-1200 Functional Safety Manual
Manual, 02/2015, A5E03470344-AA
Table of contents
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