Siemens CPU 412-5H Technical Document

Synchronization modules
Synchronization modules for
S7-400H
Equipment Manual
04/2020
A5E50072434-AA
Security information 1
Introduction 2
Safety notes 3
Description of the device 4
Assembling 5
Connecting up 6
Technical data 7
Approvals 8

Legal information
Warning notice system
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent
damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert
symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are
graded according to the degree of danger.
DANGER
indicates that death or severe personal injury will result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury may result if proper precautions are not taken.
CAUTION
indicates that minor personal injury can result if proper precautions are not taken.
NOTICE
indicates that property damage can result if proper precautions are not taken.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will be
used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to property
damage.
Qualified Personnel
The product/system described in this documentation may be operated only by personnel qualified for the specific
task in accordance with the relevant documentation, in particular its warning notices and safety instructions. Qualified
personnel are those who, based on their training and experience, are capable of identifying risks and avoiding
potential hazards when working with these products/systems.
Proper use of Siemens products
Note the following:
WARNING
Siemens products may only be used for the applications described in the catalog and in the relevant technical
documentation. If products and components from other manufacturers are used, these must be recommended or
approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and
maintenance are required to ensure that the products operate safely and without any problems. The permissible
ambient conditions must be complied with. The information in the relevant documentation must be observed.
Trademarks
All names identified by ® are registered trademarks of Siemens AG. The remaining trademarks in this publication
may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.
Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software described.
Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the information in this
publication is reviewed regularly and any necessary corrections are included in subsequent editions.
Siemens AG
Digital Industries
Postfach 48 48
90026 NÜRNBERG
GERMANY
A5E50072434-AA
Ⓟ 04/2020 Subject to change
Copyright © Siemens AG 2020.
All rights reserved

Table of contents
1 Security information......................................................................................................................................5
2 Introduction...................................................................................................................................................7
3 Safety notes..................................................................................................................................................9
4 Description of the device ............................................................................................................................11
4.1 Components of the product....................................................................................................11
4.2 Synchronization modules for S7–400H ..................................................................................11
5 Assembling .................................................................................................................................................15
5.1 Safety notices for installation .................................................................................................15
5.2 Selecting fiber-optic cables ....................................................................................................16
5.3 Notes on the installation of synchronization modules ............................................................21
5.4 Wiring and inserting the synchronization module...................................................................21
5.5 Removing the synchronization module ..................................................................................22
5.6 Installation of fiber-optic cables..............................................................................................22
6 Connecting up ............................................................................................................................................25
6.1 Safety when connecting up ....................................................................................................25
7 Technical data ............................................................................................................................................27
8 Approvals....................................................................................................................................................29
Tables
Table 5-1 Accessory fiber-optic cable .........................................................................................................16
Table 5-2 Specification of fiber-optic cables for indoor applications............................................................17
Table 5-3 Specification of fiber-optic cables for outdoor applications .........................................................19
Figures
Figure 4-1 Synchronization modules 6ES7960-1AA08-0XA0 and 6ES7960-1Ax06-0XA0 ..........................12
Figure 5-1 Fiber-optic cables, installation using distribution boxes ..............................................................20
Synchronization modules for S7-400H
Equipment Manual, 04/2020, A5E50072434-AA 3

Table of contents
Synchronization modules for S7-400H
4Equipment Manual, 04/2020, A5E50072434-AA

Security information 1
Siemens provides products and solutions with industrial security functions that support the
secure operation of plants, systems, machines and networks.
In order to protect plants, systems, machines and networks against cyber threats, it is
necessary to implement – and continuously maintain – a holistic, state-of-the-art industrial
security concept. Siemens’ products and solutions constitute one element of such a concept.
Customers are responsible for preventing unauthorized access to their plants, systems,
machines and networks. Such systems, machines and components should only be connected
to an enterprise network or the internet if and to the extent such a connection is necessary and
only when appropriate security measures (e.g. firewalls and/or network segmentation) are in
place.
For additional information on industrial security measures that may be implemented, please
visit
https://www.siemens.com/industrialsecurity.
Siemens’ products and solutions undergo continuous development to make them more secure.
Siemens strongly recommends that product updates are applied as soon as they are available
and that the latest product versions are used. Use of product versions that are no longer
supported, and failure to apply the latest updates may increase customer’s exposure to cyber
threats.
To stay informed about product updates, subscribe to the Siemens Industrial Security RSS
Feed under
https://www.siemens.com/industrialsecurity.
Synchronization modules for S7-400H
Equipment Manual, 04/2020, A5E50072434-AA 5

Security information
Synchronization modules for S7-400H
6Equipment Manual, 04/2020, A5E50072434-AA

Introduction 2
Purpose of the operating instructions
Using the operating instructions, you will be able to install the synchronization modules and
establish the link.
This manual replaces the "Synchronization modules" section in the manuals for the following
products:
Product Article number
CPU 412–5H 6ES7 412–5HK06–0AB0
CPU 414–5H 6ES7 414–5HM06–0AB0
CPU 416–5H 6ES7 416–5HS06–0AB0
CPU 417–5H 6ES7 417–5HT06–0AB0
CPU 410–5H 6ES7 410–5HX08–0AB0
CPU 410E 6ES7 410–5HM08–0AB0
CPU 410 SMART 6ES7 410–5HN08–0AB0
CPU 410SIS 6ES7 410–5FM08–0AB0
You can find the manuals on the Internet pages of Siemens Industry Online Support (https://
support.industry.siemens.com/cs/us/en/).
See also
SIMATIC Fault-tolerant systems S7-400H (https://support.industry.siemens.com/cs/de/en/
view/82478488)
SIMATIC PCS 7 Process Control System CPU 410 Process Automation (https://
support.industry.siemens.com/cs/de/en/view/109748473)
SIMATIC PCS 7 process control system CPU 410 Process Automation/CPU 410 SMART
(https://support.industry.siemens.com/cs/cn/en/view/109748474)
SIMATIC process control system PCS neo CPU 410-5H Process Automation V10 (https://
support.industry.siemens.com/cs/de/en/view/109773476)
SIMATIC CPU 410SIS (https://support.industry.siemens.com/cs/ww/en/view/109750080)
Catalogs
You can find the article numbers for the Siemens products relevant here in the following catalog:
● Industry Mall - catalog and ordering system for automation and drive technology, Online
catalog (https://mall.industry.siemens.com/goos/WelcomePage.aspx?regionUrl=/
de&language=en)
You can request the catalogs and additional information from your Siemens representative.
Synchronization modules for S7-400H
Equipment Manual, 04/2020, A5E50072434-AA 7

Device defective
If a fault develops, please send the device to your SIEMENS service center for repair. Repairs
on-site are not possible.
Recycling and disposal
The products are low in pollutants, can be recycled and meet the requirements of the WEEE
directive 2012/19/EU for the disposal of electrical and electronic equipment.
Do not dispose of the products at public disposal sites.
For environmentally friendly recycling and the disposal of your old device contact a certified
disposal company for electronic scrap or your Siemens contact (Product return (https://
support.industry.siemens.com/cs/ww/en/view/109479891)).
Note the different national regulations.
Trademarks
The following and possibly other names not identified by the registered trademark sign ® are
registered trademarks of Siemens AG:
Introduction
Synchronization modules for S7-400H
8Equipment Manual, 04/2020, A5E50072434-AA

Safety notes 3
Read the safety notices
Note the following safety notices. These relate to the entire working life of the device.
You should also read the safety notices relating to handling in the individual sections,
particularly in the sections "Installation" and "Connecting up".
CAUTION
To prevent injury, read the manual before use.
Synchronization modules for S7-400H
Equipment Manual, 04/2020, A5E50072434-AA 9

Safety notes
Synchronization modules for S7-400H
10 Equipment Manual, 04/2020, A5E50072434-AA

Description of the device 4
4.1 Components of the product
The following components are supplied with a synchronization module:
● Synchronization module
● Product information
Unpacking and checking
WARNING
Do not use any parts that show evidence of damage
If you use damaged parts, there is no guarantee that the device will function according to the
specification.
If you use damaged parts, this can lead to the following problems:
● Injury to persons
● Loss of the approvals
● Violation of the EMC regulations
● Damage to the device and other components
Use only undamaged parts.
1. Make sure that the package is complete.
2. Check all the parts for transport damage.
4.2 Synchronization modules for S7–400H
Function of the synchronization modules
Synchronization modules are used for communication between two redundant S7-400H CPUs.
You require two synchronization modules per CPU, connected in pairs by fiber-optic cable.
Note
You must use 4 synchronization modules of the same type in an H-system.
The system supports hot-swapping of synchronization modules, and so allows you to influence
the repair response of the fault-tolerant systems and to control the failure of the redundant
connection without stopping the plant.
Synchronization modules for S7-400H
Equipment Manual, 04/2020, A5E50072434-AA 11

If you remove a synchronization module in redundant system mode, there is a loss of
synchronization. The reserve CPU changes to ERROR-SEARCH mode for some minutes. If
the new synchronization module is inserted and the redundant link is reestablished during this
time, the reserve CPU switches to redundant system mode, otherwise it switches to STOP.
Once you have inserted the new synchronization module and reestablished the redundant link,
you must restart the reserve CPU.
Mechanical configuration
Figure 4-1 Synchronization modules 6ES7960-1AA08-0XA0 and 6ES7960-1Ax06-0XA0
CAUTION
Class 1 laser product
Risk of injury.
The synchronization module is equipped with a laser system and is classified as a "CLASS 1
LASER PRODUCT" according to IEC 60825–1.
Avoid direct contact with the laser beam. Do not open the housing. Always observe the
information provided in this manual, and keep the manual to hand as a reference.
CLASS 1 LASER PRODUCT
LASER KLASSE 1 PRODUKT
TO EN 60825
Description of the device
4.2 Synchronization modules for S7–400H
Synchronization modules for S7-400H
12 Equipment Manual, 04/2020, A5E50072434-AA

Diagnostics behavior of the synchronization link
S7-400H system V6 with a loaded "Spare part" V4.5 configuration
If there is reduced performance of the redundancy link between the CPUs, the operating
system of the CPU calls the OB 84. The "reduced performance of the redundancy link" event
with configuration as V4.5 corresponds to the "Functional error of the network component"
event with configuration as V6.0.
S7-400H system V6 or higher, with corresponding configuration
If there is reduced performance of the redundancy link between the CPUs in redundant
operation, the operating system of the CPU calls the OB 82. In this case, you can determine the
cause via the detail diagnostics with SFB52 or SFB54.
Note
In redundant operation, the OB 82 is also called on power off/on of a partial system or during
a firmware update of the partner CPU. This is not a problem with the synchronization link but
is instead because the synchronization modules are not emitting any light at this moment.
Diagnostics with STEP 7 / HW Config
You can find the cause of the reduced performance of the redundancy link in the "Sync module
diagnostics" tab in HW Config > Target system > Module information.
For the selected synchronization module, you can display here the following channel-specific
diagnostics data:
Property Reason
Overtemperature The synchronization module is too hot.
Fiber-optic error The synchronization module has reached the end of its service life.
Violation of lower limit The sent or received optical performance is low or too low.
Violation of upper limit The sent or received optical performance is high or too high.
Functional error of the network
component
The quality of the redundancy link between the CPUs
(transmission distance including synchronization modules and fiber-
optic cables) is reduced so that transmission errors are occurring
frequently.
Failure of a synchronization component
In solo operation, the error ID 0x3592 indicates an error in "a synchronization component". This
error has no effect on the functionality of the CPU in solo operation. However, redundant
operation is no longer possible. To replace the CPU itself in solo operation, perform a master
replacement with the function "Switch to CPU in Rack ... via only one intact redundancy link".
Description of the device
4.2 Synchronization modules for S7–400H
Synchronization modules for S7-400H
Equipment Manual, 04/2020, A5E50072434-AA 13

Fiber-optic interfaces of unused modules
Fiber-optic interfaces of unused modules must be blanked off during storage to protect the
optical equipment. The plugs are in the synchronization module when shipped.
NOTICE
Reduced optical performance due to soiling
Even small amounts of dirt in a fiber-optic interface adversely affect the quality of the signal
transmission. This can lead to synchronization losses during operation. Protect the fiber-optic
interfaces against dirt during storage and installation of the synchronization modules.
Description of the device
4.2 Synchronization modules for S7–400H
Synchronization modules for S7-400H
14 Equipment Manual, 04/2020, A5E50072434-AA

Assembling 5
5.1 Safety notices for installation
Safety notices
When installing the device, keep to the safety notices listed below.
Safety notices on use in hazardous areas
General safety notices relating to protection against explosion
WARNING
EXPLOSION HAZARD
Replacing components may impair suitability for Class 1, Division 2 or Zone 2.
WARNING
When used in hazardous environments corresponding to Class I, Division 2 or Class I, Zone
2, the device must be installed in a cabinet or a suitable enclosure.
Safety notices for use according to ATEX and IECEx
If you use the device under ATEX or IECEx conditions you must also keep to the following
safety notices in addition to the general safety notices for protection against explosion:
WARNING
Requirements for the cabinet/enclosure
The equipment shall be installed in a suitable enclosure that provides a degree of protection
not less than IP54 in accordance with EN/IEC 60079-15.
WARNING
Suitable cables at high ambient temperatures
If the temperature of the cable or housing socket exceeds 70 °C or the branching point of
conductors exceeds 80 °C, special precautions must be taken.
If the device is operated at ambient temperatures of between 50 °C and 70 °C, only use cables
with a maximum permitted operating temperature of at least 80 °C.
Synchronization modules for S7-400H
Equipment Manual, 04/2020, A5E50072434-AA 15

5.2 Selecting fiber-optic cables
Check or make allowance for the following conditions and situations when selecting a suitable
fiber-optic cable:
● Required cable lengths
● Indoor or outdoor installation
● Any particular protection against mechanical stress required?
● Any particular protection against rodents required?
● Can an outside cable be routed directly underground?
● Does the fiber-optic cable need to be water-proof?
● Which temperatures influence the installed fiber-optic cable?
Observe the following rules:
● Provide for sufficient strain relief at the modules.
● Keep to the specified environmental conditions of the fiber-optic cables used (bending radii,
pressure, temperature...)
● Observe the technical specifications of the fiber-optic cables used (attenuation,
bandwidth...)
Cable length up to 10 m
You can use the synchronization modules 6ES7 960–1AA06–0XA0 and 6ES7 960–1AA08–
0XA0 in pairs with fiber-optic cables up to 10 m.
Select cables with the following specification for lengths up to 10 m:
● Multimode fiber 50/125 µ or 62.5/125 µ
● Patch cable for indoor applications
● 2 x duplex cables per fault-tolerant system, cross-over
● Connector type LC–LC
Such cables are available in the following length as accessories for fault-tolerant systems:
Table 5-1 Accessory fiber-optic cable
Length Order number
1 m 6ES7960–1AA04–5AA0
2 m 6ES7960–1AA04–5BA0
10 m 6ES7960–1AA04–5KA0
Cable length up to 10 km
You can use the synchronization module 6ES7960-1AB06-0XA0 in pairs with fiber-optic cables
up to 10 km.
Assembling
5.2 Selecting fiber-optic cables
Synchronization modules for S7-400H
16 Equipment Manual, 04/2020, A5E50072434-AA

The following rules apply:
● Make sure of adequate strain relief on the modules if you use fiber-optic cables longer than
10 m.
● Keep to the specified environmental conditions of the fiber-optic cables used (bending radii,
pressure, temperature...)
● Observe the technical specifications of the fiber-optic cables used (attenuation,
bandwidth...)
For cable lengths in excess of 10 meters, the fiber-optic cables must be custom made. First,
select the following specification:
● Single-mode fiber (mono-mode fiber) 9/125 µ
In exceptional situations, you may also use the lengths up to 10 m available as accessories
for short distances when testing and commissioning. However, only the use of specified
cables with single-mode fibers is allowed for continuous operation.
Note
Cable up to 10 m lenght on the synchronization module 6ES7 960-1AB06-0XA0
Cables up to a length of 10 m are available on order as accessories. If you use one of these
cables on the synchronization module 6ES7 960-1AB06-0XA0 , you may see the error
message "Optical perforrmance too high" at the call of OB 82.
The table below shows the further specifications, based on your application:
Table 5-2 Specification of fiber-optic cables for indoor applications
Cabling Components required Specification
The entire cabling is routed with‐
in a building
No cable junction is required be‐
tween the indoor and outdoor
area
The necessary cable length is
available in one piece. There is
no need to connect several cable
segments by means of distribu‐
tion boxes.
Convenient and complete instal‐
lation using patch cables
Patch cables 2 x duplex cables per system
Connector type LC–LC
Crossed cores
Further specifications you may need to
observe for your plant, e.g.:
UL approval
Halogen-free materials
Assembled patch cable Multicore cables, 4 cores per system
Connector type LC–LC
Crossed cores
Further specifications you may need to
observe for your plant, e.g.:
UL approval
Halogen-free materials
Assembling
5.2 Selecting fiber-optic cables
Synchronization modules for S7-400H
Equipment Manual, 04/2020, A5E50072434-AA 17

Cabling Components required Specification
The entire cabling is routed with‐
in a building
No cable junction is required be‐
tween the indoor and outdoor
area
The necessary cable length is
available in one piece. There is
no need to connect several cable
segments by means of distribu‐
tion boxes.
Convenient and complete instal‐
lation using patch cables
if necessary, installation
cables also for the inte‐
rior area
1 cable with 4 cores per fault-tolerant sys‐
tem
Both interfaces in one cable
1 or 2 cables with several shared cores
Separate installation of the interfaces in
order to increase availability (reduction of
common cause factor)
Connector type ST or SC, for example, to
match other components; see below
Further specifications you may need to
observe for your plant:
UL approval
Halogen-free materials
Avoid splicing cables in the field. Use pre‐
fabricated cables with pulling protection/
aids in whiplash or breakout design, in‐
cluding measuring log.
Patch cable for indoor
applications
Connector type LC on ST or SC, for ex‐
ample, to match other components
Installation via distribution boxes One distribution/junc‐
tion box per branch
Installation and patch
cables are connected
via the distribution box.
Either ST or SC plug-in
connections can be
used, for example.
Check the cross-over in‐
stallation when you wire
the CPUs.
Connector type ST or SC, for example, to
match other components
Assembling
5.2 Selecting fiber-optic cables
Synchronization modules for S7-400H
18 Equipment Manual, 04/2020, A5E50072434-AA

Table 5-3 Specification of fiber-optic cables for outdoor applications
Cabling Components required Specification
A cable junction is required be‐
tween the indoor and outdoor
area
● Installation cables
for
outdoor applications
Installation cables for outdoor applica‐
tions:
● 1 cable with 4 cores per fault-tolerant
system
Both interfaces in one cable
● 1 or 2 cables with several shared
cores
Separate installation of the interfaces
in order to increase availability (reduc‐
tion of common cause factor)
● Connector type ST or SC, for exam‐
ple, to match other components; see
below
Further specifications you may need to
observe for your plant:
● UL approval
● Halogen-free materials
Further specifications that may apply due
to the local conditions:
● Protection against increased mechan‐
ical stress
● Protection against rodents
● Water-proofing
● Suitable for direct underground instal‐
lation
● Suitable for the given temperature
ranges
Avoid splicing cables in the field. Use pre‐
fabricated cables with pulling protection/
aids in whiplash design, including meas‐
uring log.
● if necessary, instal‐
lation cables also for
the interior area
● 1 cable with 4 cores per fault-tolerant
system
Both interfaces in one cable
● 1 or 2 cables with several shared
cores
Assembling
5.2 Selecting fiber-optic cables
Synchronization modules for S7-400H
Equipment Manual, 04/2020, A5E50072434-AA 19

Cabling Components required Specification
Separate installation of the interfaces
in order to increase availability (reduc‐
tion of common cause factor)
● Connector type ST or SC, for exam‐
ple, to match other components; see
below
Further specifications you may need to
observe for your plant:
● UL approval
● Halogen-free materials
Avoid splicing cables in the field. Use pre‐
fabricated cables with pulling protection/
aids in whiplash or breakout design, in‐
cluding measuring log.
● Patch cable for in‐
door applications
● Connector type LC on ST or SC, for
example, to match other components
A cable junction is required be‐
tween the indoor and outdoor
area
● One distribution/
junction box per
branch
Installation and patch
cables are connected
via the distribution box.
Either ST or SC plug-in
connections can be
used, for example
Check the cross-over in‐
stallation when you wire
the CPUs.
● Connector type ST or SC, for exam‐
ple, to match other components
&38LQUDFN&38LQUDFN3RVVLEO\RWKHUGLVWULEXWLRQER[HVHJZLWK6&RU67OLQNVWRHVWDEOLVKWKHHQWLUHOHQJWKRIWKHFRQQHFWLRQIURPLQGLYLGXDOSLHFHV3DWFKFDEOHGXSOH[HJ/&6&673DWFKFDEOHGXSOH[HJ/&6&67'LVWULEXWLRQER[HJZLWK6&RU67OLQNV'LVWULEXWLRQER[HJZLWK6&RU67OLQNV0D[NPLQVWDOODWLRQFDEOHLQVLGHRXWVLGH
Figure 5-1 Fiber-optic cables, installation using distribution boxes
Assembling
5.2 Selecting fiber-optic cables
Synchronization modules for S7-400H
20 Equipment Manual, 04/2020, A5E50072434-AA