Page 11 - Arc Guard System - TVOC-2

ABB ARC GUARD SYSTEM™ – TVOC-2 INSTALLATION AND MAINTENANCE GUIDE 11

2.4 Work in safety manner 2.4.2 Storage

Safe working methods must be used to prevent Storage in original package requires a temperature range
injuries. The safety equipment must not be disengaged, of between, -25C° to +70C° (-13F to + 158F) and a humidity
bypassed or in any other way modified so that the safety maximum 95%. 02
effect ceases.
2.4.3 Limitation of liability
2.4.1 Handling the Arc Monitor
The safety information in this manual must not be
The Arc Monitor may only be used for the purposes
mentioned in this manual. The Arc Monitor was developed, considered as a guarantee from ABB that the equipment
manufactured, tested and documented in accordance with cannot cause accidents or injury, even if all the safety
applicable safety standards. If you follow the instructions instructions have been observed.
regarding safety and use as described in this manual, the
product will, in the normal case, neither cause personal 2.5 Security guidelines
injury nor damage to machinery and equipment.
To avoid malfunctions or damage through improper
handling, follow these instructions during transportation,
installation and maintenance: 2.5.1 Security disclaimer
• Transport with care. Do not drop, throw, or give the
Arc Monitor a strong shock. It can cause breakage This product is designed to be connected to and to
communicate information and data via a network
or failure. interface. It is your sole responsibility to establish and
• Handle with care. Do not drop, throw, or give the maintain any appropriate measures (such as but not
Arc Monitor a strong shock. It can cause breakage limited to the installation of firewalls, application of
authentication measures, encryption of data, installation
or failure. of anti-virus programs, etc.) to protect the product, the
• The Arc Monitor is installed by authorized network, its system and the interface against any kind
personnel only. of security breaches, unauthorized access, interference,
intrusion, leakage and/or theft of data or information.
• This manual is a part of the Arc Monitor and should ABB Ltd and its affiliates are not liable for damages
always be accessible to personnel working with and/or losses related to such security breaches, any
this product. unauthorized access, interference, intrusion, leakage and/
or theft of data or information.
• Read and understand the manual thoroughly before
performing any installation or commissioning.
2.5.2 Risk Mitigation and Secure
• Excessive amounts of dust on the optical detectors Deployment
can lead to a degradation of detection. When regular
inspections are made, it is recommended also to To prevent equipment to operate in an unsafe or
inspect the detectors. Clean with dry cloth if needed. undesirable manner due to malicious activities the TvOC-
2 unit must be positioned in a trusted network, strictly
• CSU-2 is constantly sending light to the CSU-2 input at limited and in a hosted portion of a network or control
the Arc Monitor during normal conditions (for safety system.
and reliability reasons). The light might decrease over When a Serial to Ethernet Converter is used, the user is
time and should be checked every year by a manual responsible for creating a defence-indepth protection for
diagnostic test. See more information in chapter each network by allocating firewall solutions to the front
Maintenance and in HMI functions. of internal trusted networks of each network by manage
firewalls, their configurations and access rules.
• A log is kept that indicates if the light level had
decreased below a certain level. If so, the Current For secure remote access, use a vPN connection with
sensing unit should be replaced within the next an encryption layer to create a secure channel over an
insecure network. Separate the management systems
6 months.
and connections to separate network segments with all
• The safety of the system will not be affected if the necessary cybersecurity features on and deny all other
Current sensing unit is not replaced. However, when connectivity mechanisms from automation systems to
the light level becomes too low then the Arc Monitor restrict unauthorized access.
will recognize this as a high current situation. And The user of the product should be aware that the
then the system functions as if there was a no unsecure nature of the serial Modbus protocol exposes
current condition, that is, trip on light at optical the communication between the product and the control
system. Authentication and integrity of transmitted
detectors only.
information is not provided by the protocol.
Configuration is done with DIP switches, settings of The main security is provided through monitoring the
parameters and controlling of configuration is done cybersecurity, topology (asset management) and correct
in the HMI. operation of the data networks using the cybersecurity
monitoring modules and features of the firewalls and
managed switches.