PLC Connect

System constraints

Supported System 800xA configurationsSmall-size, medium size and full size
Max number of Connectivity Servers per system8(16)
Max number of signal objects per Connectivity Server (separate node)25 000
Max number of serial channels used in one Connectivity Server for dialed communication 10
RedundancyRedundant pairs of parallel executing PLC Connect Connectivity Servers are supported.
Audit TrailAudit of PLC Connect changes are supported. Re-authentication and double Authentication is upported for PLC Connect signals.
Combinations in the same Connectivity ServerPLC Connect can be combined with AC 800M Connect in the same connectivity server in a small size or single node system.
Performance
The time from a change of a value in the communication server until an indication on the screenTypically less than 2 seconds for a polled 9.6 Kbaud serial protocol.
Time from a process change until the signal is available in communication server.Dependant on several parameters:
• Speed of field-bus used.
• Other products used (3:d party
OPC servers).
• Requested update cycle time set in
PLC Connect.
• Total number of signals using the available system capacity.
Time from a value change in communication server until an indication on screen.Typically less than 2 seconds for a polled 9.6 Kbaud serial protocol.
Time from a manual control in the process graphics until a value change on a terminal in PLC.Typically less than 1 second for a polled 9,6 Kbaud serial protocol.
Continuous alarm load.25 alarms/events per second.
Alarm burst capabilities.1000 alarms/events every 10 minutes
(as long as the continuous load is less than 25 alarms per second).

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