Capacity limits for system topology

Description of system capacity	Limit
Control Network nodes	120
Controller node limit This is the total simplex and redundant controllers per control network (each redundant controller pair counts as a single node).	100⁽¹⁾
Combined number of the following: Remote I/O nodes, Ethernet I/O Cards (EIOCs), CHARM I/O cards (CIOCs) and Wireless I/O cards (WIOCs) in a system	300⁽²⁾
EIOCs	60⁽³⁾
Number of Wireless Gateway nodes per Wireless I/O network	120⁽²⁾
Workstations per Control Network (non-remote)	65 workstations⁽⁴⁾ consisting of: 1 ProfessionalPLUS workstation Up to 10 Professional Stations Up to 59 Operator, Maintenance and/or Base Stations Up to 20 Application Stations⁽⁵⁾
Remote workstations (using Remote Access Services or RAS) per system	20 remote workstations on each of 6 Application Stations (where 1 is a Remote Application Station and 19 are Remote Operator Stations) 2 remote workstations on the ProfessionalPLUS
Application Stations set up as RAS servers	6 where 1 additional RAS is the ProfessionalPLUS
DeltaV Remote Clients (using Windows Remote Desktop Connection and a Remote Desktop Services server)	7,200 graphic data links on all displays open through a Remote Desktop Services server⁽⁶⁾ 60 database connections per Remote Desktop Services server⁽⁷⁾ 15 concurrent sessions per Remote Desktop Services server⁽⁸⁾
Maximum number of client sessions (# of connections) attaching to a remote workstation This affects any client retrieving information where the source of that information is on a remote workstation, including but not limited to: Process History View and Batch History View	10
DSTs per system	30,000 DSTs distributed among controllers and Application Stations
SCADA tags per system	25,000 (recommended)
Inter-Zone Servers	1
DeltaV Zones (including the current system)	15
External Asset Servers	50

⁽¹⁾ This is a fixed system limit that includes SZ controllers. The system does not permit the configuration of more than 100 controller nodes.

⁽²⁾ Additional -not counted against the controller node limit.

⁽³⁾ This is a fixed system limit. The system does not permit more than a maximum of 60 EIOCs in the I/O network.

⁽⁴⁾ This is a fixed system limit. The system does not permit the configuration of more than 65 workstation nodes.

⁽⁵⁾ A pair of Application Stations with a redundant subsystem enabled counts as one workstation.

⁽⁶⁾ Graphic updates slow considerably when the total data links exceeds 7,200. No warning message is given.

⁽⁷⁾ If this database limit is reached, a message warns that the application can't connect to the database and it shuts down.

⁽⁸⁾ This is a tested limit, not a fixed limit.