Siemens S7-300 - Page 10

Table of contents
Fail-safe signal modules
10 Installation and Operating Manual, 01/2010, A5E00085586-10
7 General technical data............................................................................................................................. 59
7.1 Introduction ..................................................................................................................................59
7.2
Standards and Approvals.............................................................................................................59
7.3
Electromagnetic Compatibility
......................................................................................................62
7.4 Shipping and
storage conditions..................................................................................................68
7.5
Mec
hanical and Climatic Environmental
Conditions....................................................................68
7.6
Specifications for Nominal Line Voltages, Isolation Test
s, Protection Class, and Degree of
Protection.....................................................................................................................................70
8 Digital modules ........................................................................................................................................ 73
8.1
Introduction
..................................................................................................................................73
8.2
Discrepancy analysis at the fail-safe di
gital input modules .........................................................74
8.3
SM 326; DI 24 x DC 24V
..............................................................................................................76
8.3.1 Properties, F
ront View, Connection Diagram, and Blo
ck Diagram..............................................76
8.3.2 Use cases for the SM 326; DI 24 24V DC
...................................................................................82
8.3.3 Application 1 : Standard Mode.....................................................................................................83
8.3.4 Application 2 : Standard operation with high availabilit
y..............................................................84
8.3.5 Application 3: Safety mode SIL2/Cat.3/PLd.................................................................................86
8.3.6
Application 4: Safety mode SIL2/Cat.3/PLd with high availability (in S7 F/FH Systems
only) .............................................................................................................................................88
8.3.7
Applic
ation 5: Safety mode SIL3/Cat.4/PLe.................................................................................90
8.3.8
Application 6: Safety mode SIL3/Cat.4/PLe with high availability (in S7 F/FH Systems
only) .............................................................................................................................................94
8.3.9
Diagnos
tic messages
of SM 326; DI 24 x DC 24V ......................................................................99
8.3.10 Technical data - SM 326; DI 24 x DC 24V
.................................................................................102
8.4 SM 326; DI 8 x NAMUR .............................................................................................................105
8.4.1
Properties, front view, wiring diagram and bloc
k diagram
.........................................................105
8.4.2 Special Features whe
n Wiring SM 326; DI 8 x NAMUR for Hazardous Areas..........................109
8.4.3 Cases of application of SM 326; DI x 8 NAMUR .......................................................................113
8.4.4 Application 1: standard mo
de and applic
ation 3: safety mode SIL 2 (Category 3)....................114
8.4.5 Application 2: standard mode with high availability and appli
cation 4: safety mode SIL 2
(Category 3) with high availability (only in S7 F/FH Systems)...................................................115
8.4.6
Application 5: Safety mode SIL3/Cat.4/PLe...............................................................................117
8.4.7 Applicatio
n 6: Safety mode SIL3/Cat.4/PLe with high availability (in S7 F/FH Systems
only) ...........................................................................................................................................119
8.4.8
Diagnos
tic Messages
for SM 326; DI 8 x NAMUR ....................................................................121
8.4.9 Technical data - SM 326; DI 8 x NAMUR ..................................................................................124
8.5
SM 326; DO 8 x DC 24V/2A PM................................................................................................127
8.5.1
Properties, front view, wiring diagram and bloc
k diagram
.........................................................127
8.5.2 SM 326; DO 8 x DC 24V/2A PM applications............................................................................130
8.5.3
Application 1: Safety Mode SIL2/Cat.3/PLd and applic
ation 2: Safety mode
SIL3/Cat.4/PLe...........................................................................................................................131
8.5.4
Diagnostic messages
of SM 326; DO 8 x DC 24V/2A PM ........................................................133
8.5.5 Technical data - SM 326; DO 8 x DC 24V/2A PM
.....................................................................138
8.6 SM 326; DO 10 x DC 24V/2A (6ES7326-2BF01-0AB0)
............................................................141
8.6.1
Properties, front view, wiring diagram and block diagram
.........................................................141
8.6.2 SM 326; DO 10 x DC 24V/2A applications
................................................................................145
8.6.3 Application 1: Standard mode, application 3: Safety Mode SIL2/Cat.3/PLd and
appli
cation 5: Safety mode SIL3/Cat.4/PLe...............................................................................146