The following limits are recommended and verified.
Function | Touch panel | BACnet/IP web interface | |
|---|---|---|---|
TCP/IP | BACnet/IP | ||
PXM50-1 PXM40-1 PXM30-1 | PXM50.E PXM40.E PXM30.E | PXG3.W100-2 PXG3.W200-2 | |
Max. number of assigned devices | n.a. |
|
|
Number of simultaneously connected operator clients 1 | n.a. | 5 | 5 |
Max number of devices connected to one BACnet device | n.a. | 5 | 5 |
Data points per plant graphic 2 | n.a. | 15 | 40 |
Data points (in a table) | n.a. | 40 | 40 |
Number of defined users | n.a. | 8 | 8 |
Trend chart, max. number of entries | 50,000 | 50,000 | 50,000 |
Max. entries per online trend 3 | 10,000 | 10,000 | 10,000 |
Max. entries per BACnet trendlog object 4 | 5000 | 5000 | 5000 |
Trend export: Max. number of entries per trend | 10,000 | 10,000 | 10,000 |
Max. alarm History entries | 10,000 | 10,000 | 10,000 |
*) see specific MSTP and LonWorks section for more specific limitations
1 | 5 is the recommended number. More clients can be connected, but performance deteriorates when the same operations are performed simultaneously. Example: Simultaneous load of the same plant graphic to 10 clients. |
2 | AM Charts and gauges can have up to 15 points. |
3 | Trend data management must be configured according as part of the online trend configuration. 10,000 trend entries can be recorded from:
|
4 | The time to read a BACnet trendlog object depends on the number of entries and the data link. |
Desigo Control Point is optimized for BACnet/IP devices which are supporting COV communication. The objects of an assigned device will automatically be polled if the device does not support COV. Polling causes a higher network communication load. This can decrease the overall performance of the Desigo Control Point device, depending on the BACnet device and on the type of communication (MS/TP, LonWorks). Such topologies must be tested individually and project specifically.