System Requirements

The ATS Bus system requirements are listed in the table below for each component.

	ATS Bus configuration system (all versions)	Bus stop (2.7/2.8)
Installer	ats_bus_setup_x.y.yydoy.i.exe (where x = major version, y = minor version, yy = 2 digit year, doy = 3 digit day of year and i a build number)	ats_bus_aa_bus_stop_setup_x.y.yydoy.i.exe (where aa = IT, OT or ADOS, x = major version, y = minor version, yy = 2 digit year, doy = 3 digit day of year and i a build number)
Operating system	Windows Server 2012 R2 64-bit Windows Server 2016 Windows Server 2019 Windows Server 2022 Windows 10 Windows 11 The Operating Systems supported by ATS Bus are subject to change in line with Microsoft’s Lifecycle Policy. For further information, please see https://docs.microsoft.com/en-us/lifecycle/.	Windows Server 2012 R2 64-bit Windows Server 2016 Windows Server 2019 Windows Server 2022 Windows 10 Windows 11 The Operating Systems supported by ATS Bus are subject to change in line with Microsoft’s Lifecycle Policy. For further information, please see https://docs.microsoft.com/en-us/lifecycle/.
Database	SQL Server 2012r2 or higher SQL Express compatible but includesp performance limitations.	SQL Server 2012r2 or higher is required for the OT and IT database channels Influx DB version 1.8 for the OT Time Series database channel SQL Express compatible but includes performance limitations.
Web browser	Google Chrome Microsoft Edge	Google Chrome Microsoft Edge
Other services	ATS Configuration and Security Manager 1.7 or higher ATS Licensing Manager version 3 or higher Particular ServiceControl version 4.20 or higher Particular ServicePulse 1.30 or higher Particular ServiceInsight 2.8.0 or higher .NET Framework 4.7.2 or 4.8 (Particular ServiceControl requires 4.7.2 or higher) MSMQ (only up to ATS Bus 2.8), RabbitMQ, Azure Service Bus or any other supported ATS Bus transport	.NET Framework 4.8
Hard disk space	100GB or more, depending on the retention times configured in ServiceControl *	20GB or more, depending on the IT/OT XML File channel, CSV channel and other files based channels.
Memory	32GB recommended because of SQL Server	8GB minimum, 16GB recommended
Firewall exclusions	ATS Bus data service ports: base port = 8700 (up to ATS Bus 2.7) base port = 9700 (from ATS Bus 2.8 onwards) Base port + 4 SQL port: 1433 RabbitMQ port: 5678 (when RabbitMQ is used as transport) MSMQ ports: 135, 2103 and 2105	RabbitMQ port: 5678 (when RabbitMQ is used as transport) MSMQ ports: 135, 2103 and 2105
Certificates	ATS Bus data service requires a valid server certificate. The certificate and issuer certificate should be located in the local system certificate store. A Self signed certificate is not advised.	ATS Bus bus stops requires a valid server certificate. The certificate and issuer certificate should be located in the local system certificate store. A Self signed certificate is not advised.

* The Particular ServiceControl instance creates an embedded database that stores a copy of all messages flowing over the bus. The size of the database depends on:

Message size (including the message header)

Message rate/volume

Retention time (how long to store/keep the messages)

Whilst ATS Bus may work on Windows operating systems other than those specified above, ATS cannot provide support for these products as they are now end of life. Please visit the Microsoft website for information on currently supported Windows software.

Although ATS Bus can be run on SQL Express with a local database, these versions of SQL have many limitations. It is therefore advised that these versions not be used in production environments. Should this be unavoidable, it is recommended that the ATS Bus configuration be thoroughly load tested to ensure that there are no significant performance issues. Please see refer to the Troubleshooting section for further information.