Siemens SICLOCK TC 400 User manual

SICLOCK
s
SICLOCK TC 400
Plant Central Clock
Operating Instructions 09/2007

09/2007
A2B00073596-01
SICLOCK®TC 400
Plant Central Clock
Operating Instructions
s
Preface, Table of contents
Safety Information
Description
Hardware Description
Operation Planning
Installation
Connecting
Configuration Tool
Parameterization
Parameterization and Operation on the Device
Parameter Table
Service and Maintenance
Messages
Technical Data
Dimension Drawing
Circuit Diagrams
Spare Parts / Accessories
Appendix
ESD Guidelines
List of Symbols
Glossary, Index

Siemens AG
I&S EDM
Frauenauracher Strasse 98
D-91056 Erlangen
GERMANY
© Siemens AG 2007
Technical data subject to change
Safety notices
This manual contains information that must be observed to ensure your personal safety and to prevent
property damage. The notices referring to your personal safety are highlighted in the manual by a safety
alert symbol, notices referring to property damage only, have no safety alert symbol. Depending on the
hazard level, warnings are displayed in descending order as follows:
In the event of a number of levels of danger prevailing simultaneously, the warning corresponding to the
highest level of danger is always used. A warning with a warning triangle indicating risk of physical injury
may also include a warning of the risk of damage to property.
Qualified personnel
The associated device/system may only be installed and used in conjunction with this documentation.
Only qualified personnel should be allowed to commission and operate the device/system. For the pur-
pose of the safety information in this documentation, a “qualified person” is someone who is authorized to
energize, ground, and tag equipment, systems, and circuits in accordance with established safety proce-
dures.
Intended use
Please note the following:
Registered Trademarks
All designations with the trademark symbol ® are registered trademarks of Siemens AG. Other designa-
tions in this documentation may be trademarks whose use by third parties for their own purposes can vio-
late the rights of the owner.
Disclaimer of liability
We have checked that the contents of this publication agree with the hardware and software described
here. Nevertheless, we cannot assume responsibility for any deviations that may arise. The information
given in this publication is reviewed at regular intervals and any corrections that might be necessary are
made in the subsequent editions.
Danger
indicates that death or serious injury will result if proper precautions are not taken.
Warning
indicates that death or serious injury may result if proper precautions are not taken.
Caution
with a warning triangle indicates that minor personal injury can result if proper precautions are not taken.
Caution
without a warning triangle means that material damage can occur if the appropriate precautions are not
taken.
Notice
means an undesirable result or state can occur if the corresponding instruction is not followed.
Warning
This equipment is only allowed to be used for the applications described in the catalog and in the technical
description, and only in conjunction with non-Siemens equipment and components recommended by Sie-
mens. Correct transport, storage, installation and assembly, as well as careful operation and maintenance,
are required to ensure that the product operates safely and without faults.

Preface-3©Siemens AG 2007 All Rights Reserved
SICLOCK®TC 400 Operating Instructions
Preface
This document is a compilation of the information required for the operation and
parameterization of the SICLOCK TC 400 plant central clock.
Scope
This manual is valid for the SICLOCK®TC 400 product with firmware version V1.0
and processor version V1.0 in conjunction with the SICLOCK TC 400 configura-
tion tool as of Version 1.0.
Recycling and disposal
The SICLOCK TC 400 is environmentally friendly and is thus recyclable. To recy-
cle and dispose of your old device in an environmentally friendly way, please con-
tact a company certified to deal with electronic waste.
Hotline and Internet addresses
If you have any questions, please contact our hotline:
The latest information on SICLOCK products, product support and FAQs can be
found on the Internet.
Phone:
Fax:
E-mail:
Internet:
[phone]
[phone]
[email protected]
http://www.siemens.de/siclock (German)
http://www.siemens.com/siclock (international)

Preface
Preface-4 ©Siemens AG 2007 All Rights Reserved
SICLOCK®TC 400 Operating Instructions

Contents-5©Siemens AG 2007 All Rights Reserved
SICLOCK®TC 400
Table of contents
Preface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Preface-3
Table of contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Contents-5
1 Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
2.1 Configuration of the SICLOCK TC 400 hardware . . . . . . . . . . . . . . . 2-12
2.2 External synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
2.3 Time receivers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
2.3.1 Plant synchronization via Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
2.3.2 Plant synchronization via point-to-point connection . . . . . . . . . . . . . 2-15
2.4 Time management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
2.5 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
2.6 Redundancy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
3 Hardware Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19
3.1 External design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19
3.2 Connection elements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20
3.3 Operator controls and displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21
3.4 Scope of delivery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23
4 Operation Planning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-25
4.1 Overview of operation planning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-25
4.2 Transport and storage conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-27
4.3 Unpacking and checking the delivery . . . . . . . . . . . . . . . . . . . . . . . . 4-28
4.4 Mounting position and fixing method. . . . . . . . . . . . . . . . . . . . . . . . . 4-29
4.4.1 Installation instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-29
4.4.2 Permitted mounting position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-30
4.4.3 Fixing method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-30
5Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-31
5.1 Installation overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-31
6 Connecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-33
6.1 Connecting overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-33
6.2 Connecting the power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-34

Table of contents
Contents-6 ©Siemens AG 2007 All Rights Reserved
SICLOCK®TC 400
6.3 Connecting the external synchronization . . . . . . . . . . . . . . . . . . . . . 6-35
6.3.1 SICLOCK GPS1000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-37
6.3.2 SICLOCK DCFRS industrial version . . . . . . . . . . . . . . . . . . . . . . . . . 6-38
6.3.3 SICLOCK GPSDEC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-39
6.3.4 Third-party systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-40
6.4 Connecting the time receivers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-41
6.4.1 Point-to-point connections via OUTPUT 1 to 3 . . . . . . . . . . . . . . . . . 6-41
6.4.2 Redundant point-to-point connections. . . . . . . . . . . . . . . . . . . . . . . . 6-43
6.5 Connecting an alarm output and a warning output . . . . . . . . . . . . . . 6-44
7 Configuration Tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-45
7.1 Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-48
7.2 General functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-50
7.2.1 Establish/disconnect online connection. . . . . . . . . . . . . . . . . . . . . . . 7-51
7.2.2 Authorization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-52
7.3 Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-53
7.3.1 Sorting the parameter table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-57
7.3.2 Showing/hiding parameter table entries . . . . . . . . . . . . . . . . . . . . . . 7-57
7.3.3 Editing parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-58
7.3.4 Reading parameters / writing parameters / resetting parameters to factory set-
tings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-59
7.4 Archive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-60
7.4.1 Sorting the archive table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-62
7.4.2 Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-63
7.5 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-64
8 Parameterization and Operation on the Device. . . . . . . . . . . . . . . . . . . . . . 8-67
8.1 Operating display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-68
8.2 Operation and parameterization . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-70
8.2.1 Authorization (enter password) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-71
8.2.2 Parameter list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-72
8.2.3 Editing dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-73
9 Parameterization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-75
9.1 Linking the external synchronization . . . . . . . . . . . . . . . . . . . . . . . . . 9-76
9.1.1 Radio clocks via terminals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-76
9.1.2 Operation as NTP client . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-77
9.1.3 Redundancy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-77
9.2 Linking the time receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-78
9.2.1 NTP server service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-78
9.2.2 SIMATIC method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-79
9.2.3 OUTPUT 1 to 3 via terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-80
9.2.4 OUTPUT 1 and 2 redundant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-81
9.2.5 Output telegram (for OUTPUT 1 to 3) . . . . . . . . . . . . . . . . . . . . . . . . 9-82

Table of contents
Contents-7
©Siemens AG 2007 All Rights Reserved
SICLOCK®TC 400
9.3 General settings on the device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-83
9.3.1 Time management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-83
9.3.2 Synchronization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-84
9.3.3 Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-85
9.3.4 System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-85
9.3.5 Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-86
9.3.6 Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-86
10 Parameter Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-87
11 Service and Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-99
11.1 Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-99
11.2 Restoring the factory settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-99
11.3 Software update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-100
12 Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-101
13 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-105
14 Dimension Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-109
15 Circuit Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-111
15.1 Terminal assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-111
16 Spare Parts / Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-113
A Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-115
A.1 Directives and declarations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-115
A.2 Certificates and approvals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-116
B ESD Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-117
B.1 Electrostatic sensitive devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-117
B.2 Electrostatic charging of persons . . . . . . . . . . . . . . . . . . . . . . . . . . . B-118
B.3 Basic measures to protect against the
discharge of static electricity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-119
C List of Symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-121
D Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-123
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Index-129

Table of contents
Contents-8 ©Siemens AG 2007 All Rights Reserved
SICLOCK®TC 400

1-9©Siemens AG 2007 All Rights Reserved
SICLOCK®TC 400
Safety Information 1
If you have questions about the validity of the installation in the planned environ-
ment, please contact your service representative.
Repairs
Only authorized personnel are permitted to repair the device.
System expansions
Only install system expansions intended for this device. If you install other
upgrades, you may damage the system or violate the safety requirements and
regulations for radio frequency interference suppression.
Contact your technical support team or where you purchased your device to find
out which system expansion devices may safely be installed.
Caution
Please observe the safety instructions on the back of the cover sheet of this doc-
umentation. You should not make any expansions to your device unless you have
read the relevant safety instructions.
Warning
Unauthorized opening and improper repairs can cause considerable damage to
property or danger for the user.
Caution
If you install or exchange system expansions and damage your device, the war-
ranty becomes void.

Safety Information
1-10 ©Siemens AG 2007 All Rights Reserved
SICLOCK®TC 400
Battery
This device is equipped with a Lithium battery. Batteries may only be replaced by
qualified personnel. See also Battery (Section 11.1).
ESD guidelines
Modules containing electrostatic sensitive devices (ESDs) can be identified by the
following label:
Strictly follow the guidelines mentioned below when handling modules which are sensitive
to ESD:
•Always discharge your body's static electricity before handling modules which
are sensitive to ESD (for example, by touching a grounded object).
•All devices and tools must be free of static charge.
•Always pull the mains connector and disconnect the battery before you install
or remove modules which are sensitive to ESD.
•Handle modules fitted with ESDs by their edges only.
•Do not touch any connector pins.
Caution
There is the risk of an explosion if the battery is not replaced as directed. Replace
only with the same type or with an equivalent type recommended by the manu-
facturer. Dispose of used batteries in accordance with local regulations.
Warning
Risk of explosion and release of harmful substances!
Therefore, do not throw Lithium batteries into an open fire, do not solder or open
the cell body, do not short-circuit or reverse polarity, do not heat up above 100°
C, dispose as regulated and protected against direct exposure to sunlight, humid-
ity and condensation.

2-11©Siemens AG 2007 All Rights Reserved
SICLOCK®TC 400
Description 2
Modern automation systems consist of a variety of computers, controllers and
systems that exchange data with one another. For real-time operation of such
plants, it is essential that the times of all components are synchronous. This
applies especially for error tracing, when event messages receive a time stamp
and when cause and effect have to be identified through a reliable chronological
sequence.
As plant central clock, SICLOCK TC 400 supplies the various plant components
with the exact and reliable time, which is obtained from one or more external syn-
chronizations with an official or legal time, usually GPS or DCF77 radio clocks.
The time is distributed via Ethernet, and also via point-to-point outputs.
Note
Use only one device as plant central clock to supply the time to all components
throughout the plant.
Exception: redundant operation of the plant central clock.

Description
2-12 ©Siemens AG 2007 All Rights Reserved
SICLOCK®TC 400
2.1 Configuration of the SICLOCK TC 400 hardware
The following figure shows a connection example of the SICLOCK TC 400 to a
SICLOCK GPS1000 as radio clock and an NTP server as an additional external
synchronization.
Figure 2-1 Application example
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Description
2-13
©Siemens AG 2007 All Rights Reserved
SICLOCK®TC 400
2.2 External synchronization
SICLOCK TC 400 can be matched to the local official time or GMT via external
synchronization in order to automate or restrict manual actions, such as daylight
saving time switchovers and leap seconds, to a minimum.
External synchronizations can be GPS or DCF77 radio clocks, servers (e.g. time
signal from an NTP server), further SICLOCK TC 400 devices or other signal
sources. They are connected to RADIO CLOCK 1 or RADIO CLOCK 2 or to one
of the four Ethernet ports on the device.
NTP servers are supported as external synchronization on the Ethernet ports.
Possible radio clocks to RADIO CLOCK 1 and RADIO CLOCK 2:
•SICLOCK GPS1000
•SICLOCK GPSDEC
•SICLOCK DCFRS
Third-party products can be connected via TTY (passive). The following protocols
are supported:
•Demodulated DCF77
•Serial:
−Meinberg compatible (including time zones)
−Meinberg compatible (not including time zones)
−NMEA (0183/ZDA)
Further information
Linking the external synchronization (Section 9.1)

Description
2-14 ©Siemens AG 2007 All Rights Reserved
SICLOCK®TC 400
2.3 Time receivers
The time receivers of the plant can be connected via Ethernet or directly on the
device via point-to-point connections.
2.3.1 Plant synchronization via Ethernet
Physical access
There are four Ethernet interfaces available as physical access to the network
with the following specification:
•100Base TX via RJ-45 socket
Protocols
The following protocols have been implemented:
•NTP server according to RFC2030
−Any/unicast mode
−Multicast mode
−Multicast mode with local time
•Time synchronization with the SIMATIC method
−PCS7-compatible mode
−S5-compatible mode
The time telegrams can be sent individually at each Ethernet port every sec-
ond, every 10 seconds or every minute.

Description
2-15
©Siemens AG 2007 All Rights Reserved
SICLOCK®TC 400
2.3.2 Plant synchronization via point-to-point connection
Non-networked plant equipment is synchronized via OUTPUTs 1 to 3 (point-to-
point connections). They can be parameterized independently.
OUTPUTs 1 and 2
•Current signal: 20 mA active, floating
or
•Voltage signal: 24 V, floating
OUTPUT 3
RS422, floating
Output signal
•DCF77 with local time, invertible
•DCF77 with UTC, invertible
•Pulse per second, invertible
•Pulse per minute, invertible
•Serial telegram (parameterizable output telegram, see below)
Output telegram (setting applies to all three outputs)
•Meinberg compatible (including time zones)
•Meinberg compatible (not including time zones)
•NMEA (0183/ZDA)

Description
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SICLOCK®TC 400
2.4 Time management
Various functions are available in SICLOCK TC 400 in order to generate the time
valid for the plant from the external synchronization. This includes setting options
for time zones as well as the parameterizable daylight saving time.
Time assurance through protected synchronization
If a discontinuity of more than 5 s occurs in the external synchronization, the pro-
tected synchronization is activated and, for safety reasons, the synchronization
not performed.
Time assurance through microstepping mode
A time difference between the external synchronization and the device, which can
occur through a temporary radio failure or switchover to a substitute synchroniza-
tion, is automatically cleared unnoticeably in microstepping mode for the plant
operation. There is no inconsistency in the time.
Further information and parameterization options for protected synchronization
and the microstepping mode are described in Section Synchronization
(Section 9.3.2).
2.5 Commissioning
The commissioning can be divided into the following steps:
1. Installation (Section 5)
2. Connecting (Section 6)
3. Assigning IP address on the device
Parameterization and Operation on the Device (Section 8)
4. Parameterization (Section 9)
With a few exceptions, the settings are made with the configuration tool, see
Configuration Tool (Section 7).
Note
Only parameterize the plant time at one location within the synchronization hier-
archy, ideally at the plant central clock.

Description
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©Siemens AG 2007 All Rights Reserved
SICLOCK®TC 400
2.6 Redundancy
Redundant external synchronization
Up to two radio clocks and up to four time servers can be operated on the
SICLOCK TC 400 for the external synchronization.
The priorities of the external synchronizations and therefore the redundancy
behavior can be set via parameters, see Redundancy (Section 9.1.3).
Redundant SICLOCK TC 400 plant central clock
A SICLOCK TC 400 can be operated via various ports on a redundant network
and several SICLOCK TC 400 can be operated as servers on one network.
For further information, refer to Chapters Configuration Tool (Section 7) and
Parameter Table (Section 10).
Redundant control of time receivers (output redundancy)
At least two SICLOCK TC 400 are used for an output redundancy. With the appro-
priate parameterization, OUTPUTs 1 and 2 of the two devices can each be con-
nected redundantly with the other.
For further information, refer to Sections Redundant point-to-point connec-
tions (Section 6.4.2) and OUTPUT 1 and 2 redundant (Section 9.2.4).

Description
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SICLOCK®TC 400