Description: This entry gives you an overview of the system limits of S7 Communication.
The following figures show the basic configuration of S7 Communication between F CPUs via Industrial Ethernet. Bidirectional data communication is via an S7 connection.
Fig. 01
Alternatively, bidirectional data communication can be via two separate S7 connections. In this way, you can structurally separate the send and receive channels, for example.
Fig. 02
The system limit of S7 Communication is determined by the following parameters:
Max. number of connections supported by the CPU.
Max. number of S7 connections that can be configured per interface.
Max. number of instances supported by the CPU.
Max. number of connections supported by the CPU The following table shows the maximum number of connections supported by the F CPUs.
F CPU
Max. number of connections
IM 151-8F CPU
12
CPU 315F-2 PN/DP
16
CPU 317F-2 PN/DP
32
CPU 319F-3 PN/DP
32
CPU 416F-2 DP
64
CPU 416F-3 PN/DP
64
WinAC RTX F 2009
64
Max. number of S7 connections that can be configured The following table shows the maximum number of S7 connections supported by the F CPUs.
F CPU
Max. number of S7 connections that can be configured
IM 151-8F CPU
10
CPU 315F-2 PN/DP
14
CPU 317F-2 PN/DP
16
CPU 319F-3 PN/DP
16
CPU 416F-2 DP with CP443-1 Adv.
62
CPU 416F-3 PN/DP
30
WinAC RTX F 2009
Via CP5611: 6
Via CP5613: 48
Via CP1616: 30
Via IE general: 14
Max. number of instances The following table shows the maximum number of instances supported by the F CPUs.
F CPU
Max. number of instances
IM 151-8F CPU
32
CPU 315F-2 PN/DP
32
CPU 317F-2 PN/DP
32
CPU 319F-3 PN/DP
32
CPU 416F-2 DP with CP443-1 Adv.
Firmware version < V5.2: 1800 (can be configured: 600 preset)
Firmware version V5.2 onwards: 4000 (can be configured: 600 preset)
CPU 416F-3 PN/DP
600 (internal interface)
CPU 416F-3 PN/DP with CP443-1 Adv.
Firmware version < V5.2: 1800 (can be configured: 600 preset)
Firmware version V5.2 onwards: 4000 (can be configured: 600 preset)
WinAC RTX F 2009
600 (can be configured: 300 preset)
Example: In a CPU 319F-3 PN/DP, you select S7 Communication via TCP/IP for safe bidirectional data communication. Depending on whether the data communication is via one or two configured S7 connections, you can configure another 15 or 14 S7 connections.
The fail-safe communication blocks "F_SENDS7" and "F_RCVS7" are called in the CPU user program for safe bidirectional data communication via S7 connections. These blocks internally call the system function blocks SFB8 "USEND" and SFB9 "URCV" respectively. In this way, the user data and associated acknowledgments are sent and received. An instance data block is assigned to each SFB8 "USEND" and SFB9 "URCV" system function block. Thus, the number of instance data blocks (= instances) is identical to the number of communication jobs.
This means that in the case of safe bidirectional data communication, at least four communication jobs are executed and four instances are needed. In this case, with the CPU 319F-3 PN/DP there remain 28 free instances.
In the user program of the CPU 319F-3 PN/DP, you can call a maximum of 16 fail-safe communication blocks "F_SENDS7" or F_RCVS7", because the maximum of instances is limited to 32.
In the case of safe bidirectional data communication, the CPU 319F-3 PN/DP can communicate with a maximum of 8 F CPUs.
Calculation for safe bidirectional data communication in the CPU 319F-3 PN/DP: 8 "F_SENDS7" + 8 "F_RCVS7" = 16 fail-safe communication blocks
8*("USEND" + "URCV") + 8*("USEND" + "URCV")
= 16 "USEND" + 16 "URCV" = 32 communication jobs or instances
Note: The safety function is foremost with F CPUs. Therefore, the system limit of S7 Communication is determined not only by the number of communication connections, but also by the response times achieved. If the required response times are not achieved because of the number of communication connections, the remedy is to
Reduce the number of communication connections.
Use a larger and faster CPU.
How do you incorporate the execution times of the F blocks for the Mobile Panel 277F IWLAN into the "S7fcotia.xls" table?
Description You can use the Excel table "S7fcotia.xls" for calculating monitoring and response times in a safety-related application with S7 Distributed Safety. The table is available for free downloading in Entry ID: 25412441.
The "S7fcotia.xls" table has three tabs. The first tab contains the calculation of the maximum runtime of the F runtime group depending on the F CPU used. Here, among other things, you enter the number of F function blocks used from the S7 Distributed Safety library.
The associated F function blocks are not provided in the "S7fcotia.xls" table for the Mobile Panel 277F IWLAN.
Max. response times of Mobile Panel 277F IWLAN
Time in ms
TRES_no_Fault
(max. response time without error)
25
TRES_one_Fault (max. response time with one error)
25
Table 01
The following table shows how to incorporate the execution times of the F function blocks and incorporation of the maximum response time of the Mobile Panel 277F IWLAN in the "S7fcotia.xls" table.
No.
Procedure
1
Determining the execution times of the F function blocks for Mobile Panel 277F IWLAN
Insert the number of used F programm blocks in the table at the attachment 1.
Note the automatically caluted values from your used F programm blocks.
2
Incorporating execution times in the "S7fcotia.xls" table
Open the "S7fcotia" table and select the tab
"Max. runtime of F runtime group".
Manually enter the time value determined (from 1) in the "Sum of execution times" line (section "F-FBs/F-FCs from other F library") under the corresponding CPU in the "S7fcotia.xls" table.
The "Max. runtime of F runtime group" section of the "S7fcotia.xls" table displays the sum of the execution times of the F runtime group.
Then continue with "Estimation of the automation system's response time".
3
Incorporating maximum response times in the "S7fcotia.xls" table
Open the "S7fcotia" table and select the tab
"Max. response times".
The "Observed signal flow of the safety function" section lists four different F I/O versions.
Select the version corresponding to your system configuration and enter the maximum response time (see Table 01) in the cells provided (TWCDT and TOFDT).
Then continue with "Estimation of the automation system's response time".
Instructions for this are available in Entry ID: 23926783.
Table 02
Excel table "27097159_Runtime_F_FB_V1_1_en.xls" The attached Excel table "27097159_Runtime_F_FB_V1_1_en.xls" is for easy addition of the execution times of the F program blocks for the Mobile Panel 277F IWLAN.
Enter the time value determined in the "Sum of execution times" line (section "F-FBs/F-FCs from other F library") in the "S7fcotia.xls" table.
Description: When using S7 Distributed Safety V 5.4 SP1 to V 5.4 SP3, despite correct setting of the monitoring times it still might happen that when the F system starts up, the F CPU goes into STOP. In this case, you find the following entries in the diagnostics buffer:
"Cycle time exceeded" or
"Error in the safety program: cycle time exceeded".
Note: With S7 Distributed Safety V 5.4 SP1 the behavior described can only occur when you are using an F CPU that supports "Startup protection in case of inconsistent safety program" (see Product Information for F CPU concerned).
The F CPU's operating mode STOP depends on the following:
Number of F peripherals addressed in the safety program.
Available time buffer in the value configured for the maximum cycle time of the F runtime group (F monitoring time).
Available time buffer in the value configured for the cycle monitoring time (in the "Cycle/Clock marker" tab in the Object Properties of the F CPU).
Remedy:
Execute the steps as in the table below.
No.
Procedure
Note
1
First check whether you have set the monitoring time correctly.
Also refer here to the Excel file on response time calculation, s7cotia.xls, Entry ID 25412441.
2
Change to S7 Distributed Safety V 5.4 SP4.
Instructions for this are available in the programming and operating manual "S7 Distributed Safety, Configuring and Programming", Edition 10/2007.
3
Generate the safety program with S7 Distributed Safety V 5.4 SP4.
Keywords:
Safety Integrated, Fail-safe
Which values can you use with F CPUs and products of the ET 200 family for PFD, PFH and the proof test interval?
Configuration Notes For the F CPUs listed below you can stretch out the proof test interval (or mission time) to 20 years. Here, you must set the probability of a dangerous failure per hour (PFH) to the same value and the average probability of failure on demand (PFD) to double the value of a proof test interval of 10 years.
F-CPU
MLFB
PFD
PFH
Proof test interval
IM 151-7 F-CPU
6ES7151-7FA01-0AB0
1,59E-05
3,62E-10
10 years
3,18E-05
3,62E-10
20 years
6ES7151-7FA20-0AB0
1,59E-05
3,62E-10
10 years
3,18E-05
3,62E-10
20 years
6ES7151-7FA21-0AB0
<1,5E-05
<0,35E-09
10 years
<3E-05
<0,35E-09
20 years
IM 151-8F PN/DP CPU
6ES7151-8FB00-0AB0
<5E-05
<2E-09
10 years
<1E-04
<2E-09
20 years
6ES7151-8FB01-0AB0
<4E-05
<1E-09
10 years
<8E-05
<1E-09
20 years
IM154-8F PN/DP CPU
6ES7154-8FB01-0AB0
<4E-05
<1E-09
10 years
<8E-05
<1E-09
20 years
6ES7154-8FX00-0AB0
<4E-05
<1E-09
10 years
<8E-05
<1E-09
20 years
CPU 315F-2 DP
6ES7315-6FF01-0AB0
2,38E-05
5,43E-10
10 years
4,76E-05
5,43E-10
20 years
6ES7315-6FF04-0AB0
<2E-05
<5E-10
10 years
<4E-05
<5E-10
20 years
CPU 315F-2 PN/DP
6ES7315-2FH10-0AB0
4,76E-05
1,09E-09
10 years
9,52E-05
1,09E-09
20 years
6ES7315-2FH13-0AB0
4,76E-05
1,09E-09
10 years
9,52E-05
1,09E-09
20 years
6ES7315-2FJ14-0AB0
<4E-05
<1E-09
10 years
<8E-05
<1E-09
20 years
CPU 317F-2DP
6ES7317-6FF00-0AB0
4,76E-05
1,09E-09
10 years
9,52E-05
1,09E-09
20 years
6ES7317-6FF03-0AB0
4,76E-05
1,09E-09
10 years
9,52E-05
1,09E-09
20 years
6ES7317-6FF04-0AB0
<4E-05
<1E-09
10 years
<8E-05
<1E-09
20 years
CPU 317F-2 PN/DP
6ES7317-2FJ10-0AB0
4,76E-05
1,09E-09
10 years
9,52E-05
1,09E-09
20 years
6ES7317-2FK13-0AB0
4,76E-05
1,09E-09
10 years
9,52E-05
1,09E-09
20 years
6ES7317-2FK14-0AB0
<4E-05
<1E-09
10 years
<8E-05
<1E-09
20 years
CPU 317TF-2 DP
6ES7317-6TF14-0AB0
<4E-05
<1E-09
10 years
<8E-05
<1E-09
20 years
CPU 319F-3 PN/DP
6ES7318-3FL00-0AB0
<1E-04
<3E-09
10 years
<2E-04
<3E-09
20 years
6ES7318-3FL01-0AB0
<1E-04
<3E-09
10 years
<2E-04
<3E-09
20 years
CPU 412-3H
6ES7412-3HJ14-0AB0
1,9E-04
4,3E-09
10 years
3,8E-04
4,3E-09
20 years
CPU 412-5H PN/DP
6ES7412-5HK06-0AB0
<1,9E-04
<4,3E-09
10 years
<3,8E-04
<4,3E-09
20 years
CPU 414F-3 PN/DP
6ES7414-3FM06-0AB0
<4,5E-05
<1E-09
10 years
<9E-05
<1E-09
20 years
CPU 414-4H
6ES7414-4HJ00-0AB0
1,24E-04
1,42E-09
10 years
2,48E-04
1,42E-09
20 years
6ES7414-4HJ04-0AB0
1,88E-04
4,29E-09
10 years
3,76E-04
4,29E-09
20 years
6ES7414-4HM14-0AB0
1,9E-04
4,3E-09
10 years
3,8E-04
4,3E-09
20 years
CPU 414-5H PN/DP
6ES7414-5HM06-0AB0
<1,9E-04
<4,3E-09
10 years
<3,8E-04
<4,3E-09
20 years
CPU 416F-2
6ES7416-2FK02-0AB0
4,76E-05
1,09E-09
10 years
9,52E-05
1,09E-09
20 years
6ES7416-2FK04-0AB0
4,76E-05
1,09E-09
10 years
9,52E-05
1,09E-09
20 years
6ES7416-2FN05-0AB0
4,76E-05
1,09E-09
10 years
9,52E-05
1,09E-09
20 years
CPU 416F-3 PN/DP
6ES7416-3FR05-0AB0
4,76E-05
1,09E-09
10 years
9,52E-05
1,09E-09
20 years
6ES7416-3FS06-0AB0
<4,5E-05
<1E-09
10 years
<9E-05
<1E-09
20 years
CPU 416-5H PN/DP
6ES7416-5HS06-0AB0
<1,9E-04
<4,3E-09
10 years
<3,8E-04
<4,3E-09
20 years
CPU 417-4H
6ES7417-4HL01-0AB0
1,24E-04
1,42E-09
10 years
2,48E-04
1,42E-09
20 years
6ES7417-4HL04-0AB0
1,88E-04
4,29E-09
10 years
3,76E-04
4,29E-09
20 years
6ES7417-4HT14-0AB0
1,9E-04
4,3E-09
10 years
3,8E-04
4,3E-09
20 years
CPU 417-5H PN/DP
6ES7417-5HT06-0AB0
<1,9E-04
<4,3E-09
10 years
<3,8E-04
<4,3E-09
20 years
WinAC RTX F
6ES7671-1RC07-0YA0
<1E-04
<3E-09
10 years
6ES7671-1RC08-0YA0
<1E-04
<3E-09
10 years
Table 01
The PFH and PFD values are given in the System Manual "Safety Engineering in SIMATIC S7" (Entry ID 12490443) or in the Product Information of the F CPUs concerned.
Note Explanation of abbreviations used:
SIL: Safety Integrity Level
SIL CL: SIL claim
PL: Performance Level
You can also stretch out the proof test interval (or mission time) to 20 years for the products of the ET 200M product group listed below.
ET 200M
MLFB
PFD
PFH
Proof test interval
SM326 F-DI 24
(SIL CL 2, PL d)
6ES7326-1BK01-0AB0
< 1.00E-04
< 1.00E-08
20 years
SM326 F-DI 24
(SIL CL 3, PL e)
6ES7326-1BK01-0AB0
< 1.00E-05
< 1.00E-09
SM326 F-DI 24
(SIL CL 2, PL d)
6ES7326-1BK02-0AB0
< 1.00E-04
< 1.00E-08
20 years
SM326 F-DI 24
(SIL CL 3, PL e)
6ES7326-1BK02-0AB0
< 1.00E-05
< 1.00E-09
SM326 F-DI 8 Namur
(SIL CL 2, PL d)
6ES7326-1RF00-0AB0
< 1.00E-04
< 1.00E-08
20 years
SM326 F-DI 8 Namur
(SIL CL 3, PL e)
6ES7326-1RF00-0AB0
< 1.00E-05
< 1.00E-09
SM326 F-DO 10
6ES7326-2BF01-0AB0
< 1.00E-05
< 1.00E-09
20 years
SM326 F-DO 10
6ES7326-2BF10-0AB0
< 1.00E-05
< 1.00E-09
20 years
SM326 F-DO 8
6ES7326-2BF40-0AB0
< 1.00E-05
< 1.00E-09
20 years
SM326 F-DO 8
6ES7326-2BF41-0AB0
< 1.00E-05
< 1.00E-09
20 years
SM336 F-AI 6
6ES7336-1HE00-0AB0
< 1.00E-05
< 1.00E-09
20 years
SM336 F-AI 6x
0/4..20mA HART
6ES7336-4GE00-0AB0
< 1.00E-05
< 1.00E-09
20 years
Table 02
You can also stretch out the proof test interval (or mission time) to 20 years for the products of the ET 200S product group listed below.
ET 200S
MLFB
PFD
PFH
Proof test interval
EM138 PM-E F pm
6ES7138-4CF02-0AB0
< 1.00E-05
< 1.00E-10
20 years
EM138 PM-E F pm
6ES7138-4CF03-0AB0
< 1.00E-05
< 1.00E-10
20 years
EM138 PM-E F pp
6ES7138-4CF41-0AB0
< 1.00E-05
< 1.00E-10
20 years
EM138 PM-E F pp
6ES7138-4CF42-0AB0
< 1.00E-05
< 1.00E-10
20 years
EM138 4/8 F-DI
(SIL CL 2, PL d)
6ES7138-4FA00-0AB0
< 1.00E-03
< 1.00E-08
20 years
EM138 4/8 F-DI
(SIL CL 3, PL e)
6ES7138-4FA00-0AB0
< 1.00E-05
< 1.00E-10
EM138 4/8 F-DI
(SIL CL 2, PL d)
6ES7138-4FA01-0AB0
< 1.00E-03
< 1.00E-08
20 years
EM138 4/8 F-DI
(SIL CL 3, PL e)
6ES7138-4FA01-0AB0
< 1.00E-05
< 1.00E-10
EM138 4/8 F-DI
(SIL CL 2, PL d)
6ES7138-4FA02-0AB0
< 1.00E-03
< 1.00E-08
20 years
EM138 4/8 F-DI
(SIL CL 3, PL e)
6ES7138-4FA02-0AB0
< 1.00E-05
< 1.00E-10
EM138 4/8 F-DI
(SIL CL 2, PL d)
6ES7138-4FA03-0AB0
< 1.00E-03
< 1.00E-08
20 years
EM138 4/8 F-DI
(SIL CL 3, PL e)
6ES7138-4FA03-0AB0
< 1.00E-05
< 1.00E-10
EM138 4/8 F-DI
(SIL CL 2, PL d)
6ES7138-4FA04-0AB0
< 1.00E-03
< 1.00E-08
20 years
EM138 4/8 F-DI
(SIL CL 3, PL e)
6ES7138-4FA04-0AB0
< 1.00E-05
< 1.00E-10
EM138 4 F-DO
6ES7138-4FB00-0AB0
< 1.00E-05
< 1.00E-10
20 years
EM138 4 F-DO
6ES7138-4FB01-0AB0
< 1.00E-05
< 1.00E-10
20 years
EM138 4 F-DO
6ES7138-4FB02-0AB0
< 1.00E-05
< 1.00E-10
20 years
EM138 4 F-DO
6ES7138-4FB03-0AB0
< 1.00E-05
< 1.00E-10
20 years
EM138 4 F-DI/3 F-DO
(SIL CL 2, PL d)
6ES7 138-4FC00-0AB0
< 1.00E-04
< 1.00E-08
20 years
EM138 4 F-DI/3 F-DO
(SIL CL 2, PL d)
6ES7138-4FC01-0AB0
< 1.00E-04
< 1.00E-08
20 years
EM138 1 F-RO
6ES7 138-4FR00-0AA0
< 1.00E-05
< 1.00E-09
20 years
Table 03
You can also stretch out the proof test interval (or mission time) to 20 years for the products of the ET 200iSP product group listed below.
ET 200iSP
MLFB
PFD
PFH
Proof test interval
EM138 8 F-DI Ex NAMUR
(SIL CL 3, PL e) for 1-channel and 2-channel connections
6ES7138-7FN00-0AB0
< 1.00E-05
< 1.00E-09
20 years
EM138 4 F-DO Ex 17.4V/40mA
(SIL CL 3, PL e)
6ES7138-7FD00-0AB0
< 1.00E-05
< 1.00E-09
20 years
EM138 4 F-AI Ex HART
(SIL CL 3, PL e)
6ES7138-7FA00-0AB0
< 1.00E-04
< 1.00E-08
20 years
EM138 4 F-AI Ex NAMUR
(SIL CL 3, PL e) 2-channel connections to 2 modules and evaluation in the F CPU
6ES7138-7FA00-0AB0
< 1.00E-05
< 1.00E-09
Table 04
You can also stretch out the proof test interval (or mission time) to 20 years for the products of the ET 200eco product group listed below.
ET 200eco
MLFB
PFD
PFH
Proof test interval
EM148 4/8 F-DI
(SIL CL 2, PL d)
6ES7148-3FA00-0XB0
< 1.00E-03
< 1.00E-08
20 years
EM148 4/8 F-DI
(SIL CL 3, PL e)
6ES7148-3FA00-0XB0
< 1.00E-05
< 1.00E-10
20 years
Table 05
You can also stretch out the proof test interval (or mission time) to 20 years for the products of the ET 200PRO product group listed below.
ET 200PRO
MLFB
PFD
PFH
Proof test interval
EM148 8/16 F-DI
(SIL CL 2, PL d)
6ES7148-4FA00-0AB0
< 1.00E-03
< 1.00E-08
20 years
EM148 8/16 F-DI
(SIL CL 3, PL e)
6ES7148-4FA00-0AB0
< 1.00E-05
< 1.00E-09
EM148 4/8 F-DI/ 4 F-DO
(SIL CL 2, PL d)
6ES7148-4FC00-0AB0
< 1.00E-03
< 1.00E-08
20 years
EM148 4/8 F-DI/ 4 F-DO
(SIL CL 3, PL e)
6ES7148-4FC00-0AB0
< 1.00E-05
< 1.00E-09
EM148 F-Switch
6ES7148-4FS00-0AB0
< 1.00E-05
< 1.00E-09
20 years
Table 06
By way of information, below is a list of the probability of failure (PTE) for the safe communication paths where PTE stands for "Probability of Transmission Error").
Communication
PFD
PFH
Remarks
PLC<-->PLC Communication
(F-SEND<-->F-RECEIVE)
< 1.00E-05
< 1.00E-09
This value is added once per
PLC <--> PLC communication in the evaluation of the safety function.
PROFIsafe
F-IN-->F-CPU-->F-OUT
< 1.00E-05
< 1.00E-09
This value is added only once in the evaluation of the safety function.
Table 07
Additional Keywords
Fail-safe, IEC 62061, ISO 13849, IEC 61511, VDI2180, S7 Distributed Safety, F Systems, Process Safety, Proof Test Interval
Which fail-safe signal modules of the distributed I/O can be combined with which fail-safe controllers?
Description There are various fail-safe modules of the distributed I/O available depending on the fail-safe controller used.
The table below gives you an overview of the possible combinations of fail-safe SIMATIC controllers and the distributed IO in which you can operate fail-safe modules.
SIMATIC controller
Implemented F modules
S7-400F/FH
CPU 412-3H
CPU 412-5H
CPU 414-4H
CPU 414-5H
CPU 416-5H
CPU 417-4H
CPU 417-5H
ET 200M
PN
F modules must support PROFIsafe Profile V2
H-CPU V6.0 onwards
DP
Possible
ET 200S
PN
F modules must support PROFIsafe Profile V2
H-CPU V6.0 onwards
DP
Possible
As from S7 F Configuration Pack V5.5+SP3 and STEP 7 V5.4 also possible behind Y-Link
ET 200pro
PN
All F modules possible
(must support PROFIsafe Profile V2)
H-CPU V6.0 onwards
DP
Possible
As from S7 F Configuration Pack V5.5+SP7 and STEP 7 V5.4 also possible behind Y-Link
ET 200eco
PN
Not possible
DP
Possible
As from S7 F Configuration Pack V5.4+SP2 and STEP 7 V5.4 also possible behind Y-Link
ET 200iSP
PN
Connection over PN/DP coupler possible
All F modules possible
(must support PROFIsafe Profile V2)
H-CPU V6.0 onwards
DP
Possible
Standard devices/standard slaves
PN
Possible if these have
PROFIsafe Profile V2
H-CPU V6.0 onwards
DP
Possible as from Lib V1.3 if these have PROFIsafe Profile
S7-400F
CPU 414-3F
CPU 416-2F
CPU 416-3F
ET 200M
PN
F modules must support PROFIsafe Profile V2
DP
Possible
ET 200S
PN
F modules must support PROFIsafe Profile V2
DP
Possible
ET 200pro
PN
Possible
DP
Possible
ET 200eco
PN
Not possible
DP
Possible
ET 200iSP
PN
Connection over PN/DP coupler possible
DP
Possible
Standard devices/standard slaves
PN
Possible if these have PROFIsafe Profile V2
DP
Possible if these have PROFIsafe Profile
S7-300F
ET 200M (also possible centrally)
PN
F modules must support PROFIsafe Profile V2
DP
Possible
ET 200S
PN
F modules must support PROFIsafe Profile V2
DP
Possible
ET 200pro
PN
Possible
DP
Possible
ET 200eco
PN
Not possible
DP
Possible
ET 200iSP
PN
Connection over PN/DP coupler possible
DP
Possible
Standard devices/standard slaves
PN
Possible if these have PROFIsafe Profile V2
DP
Possible if these have PROFIsafe Profile
WinLC RTX F
ET 200M (also possible centrally with EC31-RTX F)
PN
F modules must support PROFIsafe Profile V2
DP
Possible
ET 200S
PN
F modules must support PROFIsafe Profile V2
DP
Possible
ET 200pro
PN
Possible
DP
Possible
ET 200eco
PN
Not possible
DP
Possible
ET 200iSP
PN
Connection over PN/DP coupler possible
DP
Possible
Standard devices/standard slaves
PN
Possible if these have PROFIsafe Profile V2
DP
Possible if these have PROFIsafe Profile
ET 200S:
IM 151-7 F-CPU/
IM 151-8F PN/DP
ET 200M
PN
F modules must support PROFIsafe Profile V2
DP
Possible
ET 200S (also possible centrally)
PN
Possible distributed if F modules have PROFIsafe Profile V2
DP
Possible over master module
ET 200pro
PN
Possible
DP
Possible
ET 200eco
PN
Not possible
DP
Possible
ET 200iSP
PN
Connection over PN/DP coupler possible
DP
Possible
Standard devices/standard slaves
PN
Possible if these have PROFIsafe Profile V2
DP
Possible if these have PROFIsafe Profile
ET 200pro:
IM 154-8F PN/DP
ET 200M
PN
F modules must support PROFIsafe Profile V2
DP
Possible
ET 200S
PN
F modules must support PROFIsafe Profile V2
DP
Possible
ET 200pro (also possible centrally)
PN
Possible distributed
DP
Possible
ET 200eco
PN
Not possible
DP
Possible
ET 200iSP
PN
Connection over PN/DP coupler possible
DP
Possible
Standard devices/standard slaves
PN
Possible if these have PROFIsafe Profile V2
DP
Possible if these have PROFIsafe Profile
Note on security
Caution The functions and solutions described in this article confine themselves predominantly to the realization of the automation task. Furthermore, please take into account that corresponding protective measures have to be taken in the context of Industrial Security when connecting your equipment to other parts of the plant, the enterprise network or the internet. More information is available in Entry ID: 50203404.
Additional Keywords
Safety integrated, Distributed Safety, F Systems, Fail-safe, F IO
Which hardware and software components are required to set up and operate an F system with SIMATIC S7-300F?
Attachment 1: 
