There is no limit to the number of remote sessions that can be defined under the Remote Client subsystem of the Operator Station or ProfessionalPLUS workstation. However, there are limits to the number of concurrent remote sessions that can actually be open at one time. The current tested limit for concurrent sessions is fifteen; this is not a fixed system limit, but a guideline.
Only one DeltaV Operate application can be in Configure mode at one time; that is, only one person can be editing graphics at a time on each server. It is highly recommended that for larger numbers of remote users the engineering and operator functions use dedicated servers rather than mixing engineering and operations functions on one server.
A Remote Client server can have a maximum of 60 database connections open at one time. After the limit is reached, any attempt to open an application that needs a database connection will result in an error message and the application on the remote client will be closed.
Another limitation on remote sessions is that there is a maximum of 7200 graphic data links on all displays open through a Remote Client server. Beyond that number, graphic updates slow considerably and therefore the data on those graphics may not be updated as frequently as required. No explicit warning messages are given about the reduced performance. It is important to limit the number of users so that more than 7200 data links cannot be open at one time. For example, if displays are configured with 600 data links, then no more than 12 total sessions of any kind should be configured on the server.