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AVEVA™ Plant SCADA

Project Specifications

  • Last UpdatedFeb 06, 2024
  • 2 minute read

The table below defines the specifications that are supported by Plant SCADA projects.

Note: Values marked with an asterisk (*) are not restricted, they are maximum recommended values only. However, exceeding these recommendations can impact the performance of your system. For example, it may affect the trend server (CPU loading) and the CPU loading of a client displaying the Process Analyst.

Configuration Projects

1022 *

Number of Variable Tags defined in Plant SCADA

4,194,303 (but no more than 500,000* is the recommended)

This is a system wide limitation for a running system. Tags in every project included in the project you are currently compiling and running will contribute to this figure, regardless of clustering.

Be aware that if you are using one or more tag based drivers in your project, the figure depends on the bit length of your variables defined for the driver(s). This is due to the need for these drivers to use OIDs to identify each tag. For example, a tag based driver that uses 32-bit digitals may reduce the number of possible variables by 32 (i.e. if your project contains only 32-bit digitals, you can have a maximum of 131,072). If no bit size is defined for digitals by for the driver, it defaults to 16.

Number of Included projects

1024

Simultaneously logged-in users

250 *

Number of reports

1000 *

Number of I/O Device addresses monitored by alarms

150000 *

Number of historical trends

32000 *

Number of trends displayed on the same chart

16 *

Number of alarms

65,535 per alarm type *

Number of trends displayed on the same page

16000

Number of user functions

4500 *

Number of standard built-in functions provided

1165

Number of operator commands for the system

3000 *

Number of I/O Devices connected to Plant SCADA

16383

Number of simultaneous multiple protocols

4095

Number of areas

255

Number of alarm categories

16376

Maximum simultaneous multi-tasking threads

512

DBF File size

2 GB (2,097,512 KB)

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