Siemens Sicam P855 7KG85 Series Application guide

E50417-H1040-C482-A6
Power Monitoring Device
and
Power Quality Recorder
SICAM P850/P855
7KG85xx
V2.60
Device Manual
Preface
Open Source Software
Contents
User Information 1
Overview 2
Device Design 3
Measurands and Recording 4
Getting Started 5
Connection Principle 6
Operation at Use of a PC 7
Operation at Use of the Display 8
Time Synchronization 9
Calibration 10
Maintenance, Storage, Transport 11
Failures and LED Indications 12
Technical Data 13
Operational Indications 14
Operating Parameters 15
Glossary
Index

Disclaimer of Liability
This document has been subjected to rigorous technical review
before being published. It is revised at regular intervals, and any
modifications and amendments are included in the subsequent
issues. The content of this document has been compiled for
information purposes only. Although Siemens AG has made best
efforts to keep the document as precise and up-to-date as possible,
Siemens AG shall not assume any liability for defects and damage
which result through use of the information contained herein.
This content does not form part of a contract or of business
relations; nor does it change these. All obligations of Siemens AG
are stated in the relevant contractual agreements.
Siemens AG reserves the right to revise this document from time to
time.
Document version: E50417-H1040-C482-A6.02
Edition 10.2018
Version of the product described: V2.60
Copyright
Copyright Siemens AG 2018. All rights reserved.
The disclosure, duplication, distribution and editing of this
document, or utilization and communication of the content are not
permitted, unless authorized in writing. All rights, including rights
created by patent grant or registration of a utility model or a design,
are reserved.
Registered Trademarks
SIPROTECTM and SICAMTM are registered trademarks of
SIEMENS AG. An unauthorized use is illegal.
All other designations in this document can be trademarks whose
use by third parties for their own purposes can infringe the rights of
the owner.

3SICAM P850/P855, 7KG85xx, Device Manual
E50417-H1040-C482-A6, Edition 10.2018
Preface
Purpose of this Manual
This manual describes the application, functions, installation, commissioning, and operation of the
Power Monitoring Device and Power Quality Recorder SICAM P850/P855 7KG85xx.
Target Group
This manual is intended for project engineers, commissioning and operating personnel in electrical systems
and power plants.
Scope of Validity of this Manual
This manual is valid for the Power Monitoring Device and Power Quality Recorder SICAM P850/P855
7KG85xx.
Further Support
For any questions concerning your system, please contact your Siemens representative.
The Siemens Customer Support Center provides around-the-clock support.
Phone: [phone]
Fax: [phone]
Internet: www.siemens.com/powerquality
e-mail: [email protected]
Training Courses
If you are interested in our current training program, please contact our training center:
Siemens AG
Siemens Power Academy TD
Humboldtstr. 59
D-90459 Nuremberg
Tel.: [phone]
Fax: [phone]
Internet: http://www.siemens.com/poweracademy
e-mail: [email protected]

4SICAM P850/P855, 7KG85xx, Device Manual
E50417-H1040-C482-A6, Edition 10.2018
Notes On Safety
This manual is not a complete index of all safety measures required for operation of the equipment (module,
device). However, it comprises important information that must be noted for purposes of personal safety, as
well as in order to avoid material damage. Information is highlighted and illustrated as follows according to the
degree of danger.
DANGER
DANGER means that death or severe injury will occur if the appropriate safety measures are not taken.
✧Follow all advice instructions to prevent death or severe injury.
WARNING
WARNING means that death or severe injury can occur if the appropriate safety measures are not taken.
✧Follow all advice instructions to prevent death or severe injury.
CAUTION
CAUTION means that minor or moderate injury can occur if the appropriate safety measures are not taken.
✧Follow all advice instructions to prevent minor injury.
NOTICE
NOTICE means that damage to property can occur if the appropriate safety measures are not taken.
✧Follow all advice instructions to prevent damage to property.
NOTE
is important information about the product, the handling of the product, or the part of the documentation in
question to which special attention must be paid.

5SICAM P850/P855, 7KG85xx, Device Manual
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Personnel Qualified in Electrical Engineering
Only qualified electrical engineering personnel may commission and operate the equipment (module, device)
described in this document. Qualified electrical engineering personnel in the sense of this manual are people
who can demonstrate technical qualifications as electrical technicians. These persons may commission, iso-
late, ground, and label devices, systems and circuits according to the standards of safety engineering.
Use as Prescribed
The equipment (device, module) must not be used for any other purposes than those described in the Catalog
and the Technical Description. If it is used together with third-party devices and components, these must be
recommended or approved by Siemens.
If the device is not used in accordance with the Product Information and this manual, the scheduled protection
is impaired.
Problem-free and safe operation of the product depends on the following:
• Proper transport
• Proper storage, setup, and installation
• Proper operation and maintenance
When electrical equipment is operated, hazardous voltages are inevitably present in certain parts. If proper ac-
tion is not taken, death, severe injury, or property damage can result.
• The equipment must be grounded at the grounding terminal before any connections are made.
• All circuit components connected to the power supply may be subject to dangerous voltage.
• Hazardous voltages may be present in equipment even after the supply voltage has been disconnected
(capacitors can still be charged).
• Equipment with exposed current transformer circuits must not be operated. Prior to disconnecting the
equipment, ensure that the current transformer circuits are short-circuited.
• The limit values stated in the document may not be exceeded. This must also be considered during testing
and commissioning.

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Used Symbols
No. Symbol Description
1 Direct current
IEC 60417-5031
2 Alternating current
IEC 60417-5032
3 Direct and alternating current
IEC 60417-5033
4 Three-phase alternating current
5 Earth (ground) terminal
IEC 60417-5017
6 Protective conductor terminal
IEC 60417-5019
7 Caution, risk of electric shock
8 Caution, risk of danger
ISO 7000-0434

7SICAM P850/P855, 7KG85xx, Device Manual
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Statement of Conformity
Further Standards
For further information see UL database on the internet: http://ul.com.
Chose Online Certifications Directory and insert E228586 under UL File Number.
This product complies with the directive of the Council of the European Communities on the
approximation of the laws of the Member States relating to electromagnetic compatibility (EMC
Council Directive 2004/108/EC - valid until April, 19th of 2016, Low Voltage Directive 2014/35/EU -
valid from April, 20th of 2016) and concerning electrical equipment for use within specified voltage
limits (Low-voltage Directive 2006/95/EC - valid until April, 19th of 2016, Low Voltage Directive 2014/
35/EU - valid from April, 20th of 2016).
This conformity has been established by means of tests conducted by Siemens AG according to the
Council Directive in agreement with the generic standards EN 61000-6-2 and EN 61000-6-4 for the
EMC directives, and with the standard EN 61010-1 for the low-voltage directive.
The device has been designed and produced for industrial use.
The product conforms to the standard IEC 61557-12.
This product is UL-certified to Standard UL 61010-1, third edition, based on the specification stated in Chapter 13
(Technical Data).
UL File No.: E228586
Open-type Measuring Equipment
2UD1

8SICAM P850/P855, 7KG85xx, Device Manual
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9SICAM P850/P855, 7KG85xx, Device Manual
E50417-H1040-C482-A6, Edition 10.2018
Open Source Software
The product contains, among other things, Open Source Software developed by third parties. The Open Source
Software used in the product and the license agreements concerning this software can be found in the
Readme_OSS.
These Open Source Software files are protected by copyright. Your compliance with those license conditions
will entitle you to use the Open Source Software as foreseen in the relevant license. In the event of conflicts
between Siemens license conditions and the Open Source Software license conditions, the Open Source Soft-
ware conditions shall prevail with respect to the Open Source Software portions of the software.
The Open Source Software is licensed royalty-free. Insofar as the applicable Open Source Software License
Conditions provide for it you can order the source code of the Open Source Software from your Siemens sales
contact - against payment of the shipping and handling charges - for a period of at least 3 years since purchase
of the Product. We are liable for the Product including the Open Source Software contained in it pursuant to
the license conditions applicable to the Product. Any liability for the Open Source Software beyond the program
flow intended for the Product is explicitly excluded. Furthermore any liability for defects resulting from modifi-
cations to the Open Source Software by you or third parties is excluded. We do not provide any technical sup-
port for the Product if it has been modified.

10 SICAM P850/P855, 7KG85xx, Device Manual
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11SICAM P850/P855, 7KG85xx, Device Manual
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Contents
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Open Source Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1 User Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.1 Device Versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.2 Ordering Information, Scope of Delivery and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3 Device Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.1 Mechanical Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.2 Display and Softkeys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3.3 Electrical Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4 Measurands and Recording . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.1 Measuring and Recording System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.1.1 Functioning of the Measuring System according to IEC 61000-4-30 . . . . . . . . . . . . . . . . . . . . . . . 30
4.1.2 Recording of Measurands and Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.2 Measurands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
4.2.1 Measurands in 1-phase Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
4.2.2 Measurands in 3-wire and 4-wire Networks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
4.2.3 Measurands Depending on the Connection Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
4.2.4 Data Availability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
4.3 Display of Measurands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
4.3.1 Measurands and Operational Measurement Uncertainty acc. to IEC 62586-1 Product Standard,
Class S, and Standards IEC 61000-4-30, Ed. 2 and IEC 61000-4-7 and IEC 61000-4-15. . . . . . . 65
4.3.2 Measurands and Operational Measurement Uncertainty acc. to IEC 61557-12. . . . . . . . . . . . . . . 66
4.3.3 Accuracy of the Frequency Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
5 Getting Started. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
5.1 Unpacking, Inspecting the Delivery, and Installing the Battery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
5.2 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
5.2.1 General Assembly Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
5.2.2 Environmental Protection Hints. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
5.2.3 Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
5.3 Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
5.3.1 Safety Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
5.3.2 Electrical Connection of SICAM P850/P855 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
5.4 System Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
5.5 Access Rights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

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5.6 Meaning of the LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
5.7 Commissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
5.7.1 Initial Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
5.7.2 Changes During Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
5.7.3 Starting the Device with the Default IP Address. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
6 Connection Principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
6.1 Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
6.2 Communication Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
6.2.1 Ethernet Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
6.2.2 RS485 Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
6.3 Connection Types and Connection Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
6.3.1 Using SICAM P850/P855 in the Power Systems IT, TT, and TN . . . . . . . . . . . . . . . . . . . . . . . . . . 89
6.3.2 Connection Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
6.3.3 Examples - Standard Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
6.3.4 Example - Special Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
7 Operation at Use of a PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
7.1 General Usage Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
7.2 Start and Design of the User Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
7.2.1 Initial Start of the Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
7.2.2 Enabling JavaScript . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
7.2.3 Changing the Buffer Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
7.2.4 Changing the Compatibility Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
7.2.5 Changing the Security Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
7.2.6 Number of Connections via HTML . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
7.2.7 Layout of the User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
7.2.8 Starting the User Interface during Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
7.3 Configuration of the Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
7.3.1 Device Configuration Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
7.3.2 Access to the Passive Set of Parameters by Multiple Users . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
7.3.3 Setting the Operational Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
7.3.4 HMI. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
7.3.5 Recording and Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
7.3.6 Setting Administrative Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
7.4 Value View and Evaluation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
7.4.1 Process Connections and Automation Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
7.4.2 Evaluation and Data Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
7.5 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
7.5.1 Firmware Upload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
7.5.2 Formatting the SD Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
7.5.3 AC Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
7.5.4 Presets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
7.5.5 Message Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
7.5.6 Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201

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7.6 Example of a Parameterization and Measured Value Evaluation for SICAM P855 . . . . . . . . . . . . . . 204
7.6.1 Task Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
7.6.2 Initial Situation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
7.6.3 Parameterization as Defined by the Task . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
7.6.4 Performing the Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
8 Operation at Use of the Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
8.1 General Operating Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
8.2 Starting Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
8.3 Display Content . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
8.4 Parameterization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
8.4.1 Menu Tree of the Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
8.4.2 Measurands Submenus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
8.4.3 Submenus for Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
8.4.4 Menu Tree of the Settings Submenu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
8.4.5 User-defined Screens Submenus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
9 Time Synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
9.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
9.2 Internal Time Keeping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
9.2.1 Time Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
9.2.2 Status Bits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
9.3 External Time Synchronization per NTP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
9.4 External Time Synchronization via Fieldbus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
9.5 Internal Time Synchronization via RTC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
10 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
10.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
10.2 Calibrating the Alternating Voltage Measuring Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
10.3 Calibrating the Alternating Current Measuring Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
10.4 Calibrating the Measuring Voltage Input of Neutral Conductor VN . . . . . . . . . . . . . . . . . . . . . . . . . . 247
10.5 Calibrating the Phase Angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250
11 Maintenance, Storage, Transport. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
11.1 7KG85xxMaintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254
11.2 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254
11.3 Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254
12 Failures and LED Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255
12.1 General Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256
12.2 Commissioning during Failures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257
12.2.1 Automatic Start of the Boot Loader. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257
12.2.2 Manual Start of the Boot Loader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
12.3 Indications Signaled by LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259
12.4 Troubleshooting and Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264

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13 Technical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
13.1 General Device Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
13.1.1 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
13.1.2 Inputs and Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267
13.1.3 Communication Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269
13.1.4 Environmental Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
13.1.5 General Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
13.2 Test Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
13.2.1 Electrical Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
13.2.2 Mechanical Stress Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274
13.2.3 Climatic Stress Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275
13.2.4 Safety Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275
13.3 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276
14 Operational Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281
15 Operating Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285
15.1 Process Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286
15.1.1 AC Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286
15.1.2 Binary Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287
15.1.3 LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289
15.2 Automation Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290
15.2.1 Limit Violation 1-8 and 9-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290
15.2.2 Group Indications 1-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 291
15.3 HMI. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
15.3.1 Display Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
15.3.2 User Defined Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293
15.4 Recording and Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294
15.4.1 Event Recorders. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294
15.4.2 Trigger Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294
15.4.3 Recorder Management. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296
15.4.4 Memory Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298
15.4.5 Report Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299
15.4.6 Recording Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300
15.5 Administrative. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301
15.5.1 Time Synchronization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301
15.5.2 Ethernet Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302
15.5.3 OPC UA PubSub (MQTT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303
15.5.4 Communication Serial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304
15.5.5 Device and Language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306
Glossary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307
Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311

15SICAM P850/P855, 7KG85xx, Device Manual
E50417-H1040-C482-A6, Edition 10.2018
1 User Information
Application
The multifunctional SICAM P850/P855 devices record and process measurands and events according to
IEC 61000-4-30 Power Quality (PQ) standard. The devices are used on all voltage levels of power-supply
systems. SICAM P850/P855 devices are used in 1-phase systems, 3-phase systems, and 4-phase systems
(with neutral conductor). The devices are used primarily in power utilities but also in other industrial and
commercial applications.
In addition to the measuring function, SICAM P850/P855 features various recorders (average, min and max
values) to record the measurements in programmable time intervals. Waveform capture is available in both
devices. For recording functionality the devices feature a 2-GB memory for data storage.
In SICAM P855 additionally, long-term data for power quality evaluation and events are analyzed and output
as report according to power quality standards, for example, EN 50160 and flexible data export in PQDIF,
COMTRADE or CSV.
The input circuits for voltage measurement are galvanically isolated and can be used in IT, TT, and, TN
networks. To ensure galvanic separation for current measurements, the lines connected to the current
measuring inputs are galvanically separated from the current transformers.
The measurements are obtained from the alternating quantities of current and voltage supplied to the AC
inputs. When no external voltage and current transformers are used, the device can process rated input
alternating voltages of up to VP-N = 400 V (347 V for UL condition) and VP-P = 690 V (600 V for UL condition)
and rated input alternating currents up to 5 A.
The integrated web server can be used to set the parameters and display the measured values on HTML pages
from the connected PC or notebook. The softkeys located on the front of devices with an optional display
enable a limited parameterization and measured value output on the display.
An Ethernet interface and an optional RS485 interface are available for communicating with the control center
and other process automation systems. The RS485 interface supports the transmission of operating measured
values, counts and messages. The Modbus RTU or IEC 60870-5-103 communication protocol can be used,
depending on the device variant.
Measurands
The following measurands can be recorded or calculated from the measured quantities:
• Alternating voltage and alternating current
• Unbalanced of alternating voltage and alternating current
• Active, reactive, and apparent power
• Active, reactive, and apparent energy
• Power frequency
• Phase angle
• Power factor and active power factor
• THDS (Subgroup Total Harmonic Distortion) of alternating voltage and alternating current
• Harmonics of alternating voltage and alternating current
• Flicker acc. to IEC 61000-4-15 (only SICAM P855)

1 User Information
16 SICAM P850/P855, 7KG85xx, Device Manual
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The uncertainty of operational measurements of the measurands is defined as per IEC 62586-1 product
standard, class S (leading standard), the IEC 61000-4-30 power quality standard, and the IEC 61557-12
standard.
For detailed information on measurands and measurements, see Chapter 4.2 and the technical data in
Chapter 13.1.
Functionality of the Recorders in SICAM P850
The recorders are capable of recording both measurands and events in parameterizable time intervals. The
following recorder types are used in SICAM P850:
• Measurement recorder: recording parameterized periods, for example, 10-second frequency, aggregation
of current, power etc.
• Fault recorder: Recording of sampled values of voltage and current using programmable triggers.
The device features a 2-GB memory for storing the recorder data.
Functionality of the Recorders in SICAM P855
The recorders are capable of recording both measurands and events in parameterizable time intervals. The
following recorder types are used in SICAM P855:
• Measurement recorder: recording of PQ measurands (acc. to IEC 61000-4-30) and non-PQ measurands
over parameterized periods, for example, 10-second frequency, aggregation of voltage, current, power
etc.
• Trend recorder: long-term recording and monitoring of the voltage change history over a parameterized
period of time in programmable tolerance ranges; 1/2 RMS values
• Fault recorder: Recording of sampled values of voltage and current using programmable triggers.
• Event recorder: recording of voltage events, frequency events, and voltage unbalance events
The device features a 2-GB memory for storing the recorder data.
Communication
To communicate with the systems control and other process automation equipment, the device features an
Ethernet interface and optionally an RS485 interface.
Ethernet supports the device parameterization, the transmission of measured data, counter values and
indications/events, and the time synchronization via NTP. The communication protocols are HTTP,
Modbus TCP and IEC 61850.
The RS485 interface supports the transmission of the measured data, counter values and indications, and the
time synchronization. Depending on the device version, you can use either the Modbus RTU or the
IEC 60870-5-103 communication protocol.
Time Synchronization
During operation SICAM P850/P855 needs the date and time for all time-relevant processes. This ensures that
a common time basis exists when communicating with peripheral devices and enables time stamping of the
process data. The following types of time synchronization can be executed:
• External time synchronization via Ethernet NTP (preferred)
• External time synchronization via fieldbus using the Modbus RTU or the IEC 60870-5-103 communication
protocol
• Internal time synchronization via RTC (if external time synchronization is not available)
Parameterization
Parameters are set using an internal Web browser with HTML pages from the connected PC or notebook.
Internet Explorer 6 (or higher) is required for this purpose. Devices featuring a display offer a limited
parameterization function using the front softkeys.

17SICAM P850/P855, 7KG85xx, Device Manual
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2 Overview
2.1 Device Versions 18
2.2 Ordering Information, Scope of Delivery and Accessories 21

2 Overview
2.1 Device Versions
18 SICAM P850/P855, 7KG85xx, Device Manual
E50417-H1040-C482-A6, Edition 10.2018
2.1 Device Versions
The multifunctional SICAM P850/P855 devices are used to detect, calculate, evaluate, display, and transmit
measured electrical quantities such as alternating current, alternating voltage, power values etc.
SICAM P850 devices feature memory options for recorder functions such as mean values, minimum and
maximum values, and fault records. SICAM P855 device additionally feature memory options for event
recorder and trend record.
Consistent Device Properties
All devices consistently feature the following properties:
• Device type:
Plastic case 96 mm x 96 mm x 100 mm (W x H x D)
Web server for parameterization, visualization, and data management
Galvanically isolated voltage measuring inputs
• Input and output circuits:
4 inputs for alternating voltage measurements
3 inputs for alternating current measurements
2 individually programmable binary outputs
• Measurements:
Voltage V
Current I
Basic frequency f
Active power P (class 0.2S)
Reactive power Q
Apparent power S
Active power factor cos phi
Measurement up to the 40th harmonic of voltage and current
Limit violations
Energy measurements
• Other
Transmitting measured values using communication protocols
Internal 2-GB memory (SD card)
UL Listing
Variants
SICAM P850/P855 is available in different variants:
• Device type:
Panel flush mounting device with display for measured values and parameterization
DIN rail device without display
• Communication via Ethernet
Only Modbus TCP protocol
Modbus TCP protocol or IEC 61850 server protocol
• Serial communication
With RS485 interface:
- with Modbus RTU protocol
- with Modbus RTU protocol and IEC 60870-5-103 protocol
Without RS485 interface

2 Overview
2.1 Device Versions
19SICAM P850/P855, 7KG85xx, Device Manual
E50417-H1040-C482-A6, Edition 10.2018
• Degree of protection of front
IP20 for DIN rail devices without display
IP40 or IP51 for panel flush mounting devices with display
• Additional measurands:
Minimum/mean/maximum values
• Data export acc. to IEEE Std. 1159-3
COMTRADE data
CSV data
Other Special Functions of SICAM P855
• Additional measurands:
Power Quality measurements acc. to IEC 61000-4-30
Event detection, for example Vdips
Flicker acc. to IEC 61000-4-15
• Evaluations
Output of power quality reports
• Data export acc. to IEEE Std. 1159-3
PQDIF data
SICAM P850/P855 Variant, DIN Rail Device
Figure 2-1 SICAM P850/P855 Variant, DIN Rail Device
SICAM P850/P855 as DIN Rail Device, Terminal Side
SICAM P850/P855 as DIN Rail Device,
with RS485 Interface
DIN Rail Side

2 Overview
2.1 Device Versions
20 SICAM P850/P855, 7KG85xx, Device Manual
E50417-H1040-C482-A6, Edition 10.2018
SICAM P850/P855 Variant with Graphic Display without Cover, Panel Flush Mounting
Figure 2-2 SICAM P850/P855 Variant with Graphic Display without Cover
SICAM P850/P855 Variant with Graphic Display and Cover, Panel Flush Mounting
Figure 2-3 SICAM P850/P855 Variant with Graphic Display and Cover
SICAM P850/P855 for Panel Flush Mounting, Display Side SICAM P850/P855 for Panel Flush Mounting, Terminal Side,
with RS485 Interface
SICAM P850/P855 for Panel Flush Mounting, Display Side SICAM P850/P855 for Panel Flush Mounting, Terminal Side,
with RS485 Interface