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SIMATIC S7 FH
Siemens SIMATIC S7 FH User Manual
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Important Information -
Lis
t o
f Safe
ty
Note
s
Contents
Product Ov
ervi
ew
1
Getting Started
2
Safety Mechanisms
3
Conf
iguratio
n
4
Progr
amming
5
Operatio
n and Mai
ntenance
6
Safety
7
Fail-Safe Function Blocks
8
A
ppendices
Check Lists
A
Referenc
es
B
Glossary
, Index
SIMATIC
Programmable Controllers
S7 F/FH Systems
Manual
This
manual is
part of
the docum
entation
pack
age with the or
der num
ber:
6ES7988-
8F
A
10-
8BA0
Edition 02/200
3
A
5E
00085588-03
2
Table of Contents
Simatic
1
Default Chapter
1
Table of Contents
1
Programmable Controllers
4
S7 F/FH Systems
4
Safety Notes
9
Default Chapter
11
Getting Started
11
Product Overview
11
Safety Mechanisms
11
Configuration
12
Programming
12
Operation and Maintenance
13
Safety
13
1 Product Overview
17
Overview
17
Basic Configuration Variants
20
Components of an S7 F System
23
Hardware Components
24
Software Components
26
Installing the S7 F Systems Optional Package
27
Getting Started Information Applicable to All Use-Case-Scenarios
27
Use-Case-Scenarios
28
Working with F-Systems
35
Keep Safety and Standard Functions Separate
35
2 Getting Started
39
Introduction
39
S7 F System - Getting Started
42
S7 F System, Setting up the Hardware
42
Configuring the S7 F System
44
S7 F System, Creating a Fail-Safe User Program
46
Starting up the S7 F System
49
S7 F System, Monitoring Errors
50
Fault-Tolerant S7 FH System - Getting Started
51
Fault-Tolerant S7 FH System, Setting up the Hardware
51
Configuring the Fault-Tolerant S7 FH System
53
Fault-Tolerant S7 FH System, Creating a Fail-Safe User Program
54
Starting up a Fault-Tolerant S7 FH System
54
Fault-Tolerant S7 FH System, Monitoring Errors
55
3 Safety Mechanisms
57
Introduction to the Safety Mechanisms
57
Safety Mode
58
Fault Reactions
59
Startup of an F-System
60
Self-Tests and Command Tests
61
Logical and Timed-Based Program Execution Monitoring
61
Fail-Safe User Times
63
Password Protection for F-Systems
64
Safety-Related Communication
65
Communication between the Safety Program and the Standard User Program
66
Communication between F-Run-Time Groups
67
Communication between the F-CPU and F-I/Os
67
Safety-Related Communication between F-Cpus
68
Public Network Safety F-CPU Communication Not Allowed
68
4 Configuration
71
Overview
71
Hardware Configuration and Parameter Assignment
71
Safety Rules for Safety Operation
72
CPU Parameter Assignment
73
CPU Containing Safety Program Must Have a Password
73
Parameter Assignment of F-I/Os
74
I/O Group Diagnosis
75
Configuring Redundant F-I/Os
76
Configuring the Networks and Connections
76
Programming Device Functions in STEP 7
77
Modify Variables Can Cause Shutdown
77
Setting Up, Modifying and Cancelling Access Rights
78
Setting up Access Rights for the CPU
78
Limiting Access through es
78
Entering/Changing the Password for the Safety Program
79
Safety Program and CPU Passwords Should be Different
79
Cancelling Access Rights for the Safety Program
80
Authorized Use of Password
80
Configuration in Run
81
5 Programming
83
Overview
83
Structure of the Safety Program
83
Blocks of the Safety Program
84
Creating Safety Programs
86
Creating a Safety Program - Basic Procedure
86
Safety Notes for Programming
87
Compiler Generated Values Off-Limits
87
Defining the Program Structure
89
Inserting CFC Charts
90
Inserting Run-Time Groups
91
Inserting and Interconnecting Fail-Safe Blocks
92
Inserting Fail-Safe Blocks
92
Symbol Table Entries for F-Blocks Cannot be Changed
92
Automatically Inserted F-Blocks
93
Do Not Change Automatically Inserted F-Control Blocks
93
Interconnecting and Assigning Parameters to F-Blocks
94
Incorrect Changes to Fail-Safe Blocks Input Parameters May Result in the Safety Program and Its Outputs Being Disabled
94
Defining the Run Sequence
96
Interconnecting F-Driver Blocks
98
During Simulation of Input Channels the Simulation Value Is Always Available on the Block's Output
104
Passivation and Reintegration of the Input and Output Channels
106
Automatic Reintegration May Not Always be Possible
107
Startup Protection to Handle Short Power Failures in the F-I/O
108
Automatic Reintegration through F_QUITES
109
Programming Startup Protection
110
Example: Reintegration after Startup of the Safety Program
111
Assigning Parameters to the F Cycle Time Monitoring
112
Default MAX_CYC
112
Interconnecting F Communication Blocks
113
Safety Program Must be Re-Compiled if S7 Connections Used for CPU-CPU Communication Have Changed
114
Use F_LIM_R for Plausibility Check of Standard to F-Data Conversion
119
Processing of the Safety Program
121
Managing Safety Programs
121
Deactivating Safety Mode
122
Activating Safety Mode
124
Compiling a Safety Program
125
Creating Fail-Safe Block Types
126
F-Blocks Outputs' Always Use the Preset Initial Values
126
Downloading a Safety Program
129
Downloading the Entire Safety Program
130
Safety Program on Memory Card
130
Changes to the Safety Program in RUN Mode
131
Downloading
131
OB Cycle Times Changes Restricted
132
Downloading Changes
136
Password Protection Level
136
Download Operation Aborted
137
Testing the Safety Program
138
Safety Program Disable if Change to Failsafe Outputs
138
Testing a Safety Program Offline with S7-Plcsim
139
Changing Fail-Safe Constants in CFC Test Mode
144
Displaying Information
147
Saving Reference Data
148
Comparing Safety Programs
149
Allowable F Control Block Comparison Changes
157
Logging the Safety Program
158
Checking Online Comparison Output
158
Printing the Safety Program
159
6 Operation and Maintenance
161
Operation and Maintenance of the F-Systems
161
Rules for Operation
161
Simulation of Profisafe Devices Not Permitted
161
Working with the Safety Program
162
Duplicate Masters Must be Avoided
162
Changing the Safety Program
163
Replacing Software and Hardware Components
164
Uninstalling the S7 F/FH System
165
7 Safety
167
Standards, Certificates and Approvals
167
Safety Requirements
170
System Configuration
173
Monitoring Times
174
Configuring the Monitoring Times for F/FH Systems
174
Pulse Detection
175
Calculation of the Minimum Monitoring Times
176
Acceptance of an F-System
180
Archive STEP 7 Projects
180
Initial Acceptance of a Safety Program
181
Acceptance of Changes to the Safety Program
186
Acceptance of F-Block Types
188
Responsibilities and Qualifications
188
8 Fail-Safe Blocks
189
Overview
189
F-Data Types
190
Do Not Change PAR_ID and COMPLEM Parameters
190
Block I/Os
192
Do Not Change Automatically Supplied FB Inputs
192
Block Numbers
194
Fail-Safe FB Numbers
195
Installation in Cyclic Interrupt Obs
196
Safety Program Can be Installed in ob 3X ONLY
196
Driver Blocks for F-I/Os
197
F_Ch_Di
198
F_Ch_Do
201
F_Ch_Ai
206
Common Features of the Driver Blocks
210
Blocks for F Communication between Cpus
213
Do NOT Change CRC_IMP Input
214
F_Sendbo
215
F_Rcvbo
217
F_Sendr
219
F_Rcvr
221
Blocks for Converting Data
223
Use F_LIM_R for Plausibility Check of Standards to F-Data Conversion
223
F_Bo_Fbo
224
F_I_Fi
225
F_R_Fr
226
F_Ti_Fti
227
F_Fbo_Bo
228
F_Fi_I
229
F_Fr_R
230
F_Fr_Fi
231
F_Fti_Ti
232
F_Quites
233
Reintegration through User Acknowledgement with F_QUITES
233
F_S_Bo
235
F-System Blocks
235
F_R_Bo
237
F_S_R
239
F_R_R
240
F_Start
242
F Control Blocks
243
F_Cyc_Co
244
PD_FLAG Not to be Interconnected
244
F_M_Di8
246
F_M_Di24
249
F_M_Do8
252
F_M_Do10
254
F_M_Ai6
256
F_Plk
258
F_Plk_O
259
F_Shutdn
260
F_SHUTDN in Slowest Configured ob
262
F_Test
265
F_Testc
266
F_Testm
267
Db_Res
268
Db_Init
269
Fail_Msg
270
Rtg_Logic
271
Sfc F_Ctrl
272
Logic Blocks with the BOOL Data Type
273
F_And4
273
F_Or4
275
F_Xor2
276
F_Not
277
F_2Out3
277
F_Xouty
279
Comparison Blocks for Two Input Values of the same Type
280
F_Lim_Hl
280
F_Lim_Ll
280
F_2Oo3_R
284
F_1Oo2_R
286
Flip-Flop Blocks
288
F_Sr_Ff
290
F_Ctud
291
IEC Pulse and Counter Blocks
291
F_Tp
293
F_Ton
295
F_Tof
297
Pulse Blocks
299
F_R_Trig
300
F_Lim_Ti
301
Arithmetic Blocks with the INT Data Type
302
F_Lim_I
302
Arithmetic Blocks with the REAL Data Type
303
F_Add_R
303
F_Sub_R
304
F_Mul_R
305
F_Div_R
306
F_Abs_R
307
F_Max3_R
308
F_Mid3_R
309
F_Min3_R
310
F_Lim_R
311
8.13.10 F_Sqrt
312
8.13.11 F_Avex_R
313
8.13.12 F_Smp_Av
315
Multiplex Blocks
316
F_Mux2_R
316
Error Handling
317
Error Handling of Driver Blocks
318
Error Information at the Outputs of the Driver Blocks
320
Errror Information in the Diagnostic Buffer
322
Error Information at the Output RETVAL
328
Run Times
329
Run Times of the Fail-Safe Blocks
329
A Check Lists
333
A.1 Life Cycle of the Fail-Safe Programmable Controllers
333
A.2 Check List of the Certified Modules
337
A.3 Check List of the Certified F-Blocks
339
A.4 Check List of the Safety Parameters of the F-Drivers
342
B References
343
Glossary
345
Index
351
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Siemens SIMATIC S7 FH Specifications
General
Brand
Siemens
Model
SIMATIC S7 FH
Category
Controller
Language
English
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