Number of elements / Per network area

Desigo system

BACnet inter-network

BACnet PTP inter-network

BACnet/ IP network

BACnet MS/TP network

BACnet/ LonTalk network

LonWorks trunk (FLN)

PX KNX inte-gration

PX site

Desigo topology

BACnet internetwork

200

 

n/a

n/a

n/a

n/a

n/a

n/a

n/a

BACnet PTP internetwork

118

n/a

 

n/a

n/a

n/a

n/a

n/a

n/a

BACnet/IP network

n/a

10 [50*]

[1] 19

 

n/a

n/a

n/a

n/a

[total 20]

BACnet MS/TP network

n/a

[50]

n/a

8

 

n/a

n/a

n/a

n/a

BACnet/LonTalk network

[3]

n/a

n/a

n/a

n/a

 

n/a

n/a

 

PXG3.M/L (BACnet router)

n/a

[100]

[30]

[100]

1

1

n/a

n/a

n/a

IP segment

n/a

10 [50*] 6

[50*] 6

10 [50*] 6

n/a

n/a

n/a

n/a

n/a

LonWorks segment (ALN)

n/a

[100]

[30]

n/a

n/a

1

n/a

n/a

n/a

PX site

[1,000]

[30]

5

n/a

n/a

n/a

n/a

n/a

n/a

PX plant

[4,000]

[2,000]

[60]

n/a

n/a

n/a

n/a

n/a

100

LonWorks trunk (FLN)

[200]

[100]

[30]

n/a

n/a

n/a

 

n/a

[50]

LonWorks segment (FLN)

n/a

n/a

n/a

n/a

n/a

n/a

[5]

n/a

[250]

PX KNX integration

[200]

[100]

[30]

n/a

n/a

n/a

n/a

 

[50]

Desigo devices

PX… without DXR2/PXC315

[2,000]

[1,000]9

[30]

[200]8

n/a

30

n/a

n/a

50/10017

PXC3.E (Desigo room automation)

(10,000)16

[1,500] (2,500)

n/a

25023 [500]24

n/a

n/a

n/a

n/a

n/a15

DXR214 (Desigo room automation)

(10,000)16

[1,500] (2,500)

n/a

25023 [500]24

6421

n/a

n/a

n/a

n/a15

DXR1 (Desigo room automation)

(10,000)16

[1,500] (2,500)

n/a

10023 [500]24

6421

n/a

n/a

n/a

n/a15

Desigo CC

10

10

n/a

10

n/a

n/a

n/a

n/a

n/a

PXM20

n/a

(10)9

10

n/a

n/a

10

n/a

n/a

total 1510

PXM30/40/50.E

n/a

n/a

n/a

10

n/a

n/a

n/a

n/a

n/a

PXG3.W100-1

n/a

n/a

n/a

10

n/a

n/a

n/a

n/a

n/a

PXG3.W200-1

n/a

n/a

n/a

10

n/a

n/a

n/a

n/a

n/a

Desigo Xworks Plus (XWP) (commissioning)12

n/a

[10]

[10]

[10]

n/a

[5]

n/a

n/a

total 1510

Total LonWorks nodes

[40,000]

[20,000]

[6,000]

n/a

n/a

n/a

3002

n/a

[10,000]

RXB

[8,000]

[2,000]

[1,200]

n/a

n/a

n/a

n/a

454

[2,000]

Data points and BACnet objects

Physical data points

[100,000]

[100,000]

[3,000]

[20,000]

n/a

n/a

n/a

n/a

[6,000]

Total BACnet objects

[500,000]

[100,000]

[30,000]

[100,000]

[3,000]

[30,000]

n/a

n/a

[50,000]

Trendlog object

[30,000]

[2,500]

[200]

[2,500]

[540]

[600]

n/a

n/a

[1,000]

Key

n/a

Not applicable.

–

No restrictions.

2

Not the same as the number of integrated devices ( PXC00.D/-E.D + PXX-L…).

3

LonWorks routers must not be used at the automation level.

4

Limit applies only if this device type is used exclusively.

6

For higher performance use a PXG3 instead of a PXC-E.D for the BBMD function.

7a

Limit for PXC00.D/-E.D + PXX-L11.

7b

Limit for PXC00.D/-E.D + PXX-L12.

8

Limit for PX devices without Desigo room automation. Do not exceed the number of PXC devices per site.

9

The limit on the number of PX automation stations per internetwork can only be maintained if no PX clients are used. PX clients limit the permissible number of PX per internetwork. The values can be obtained by reference to the relevant automation station columns. The restricted view option does not affect the system configuration of PX clients.

10

The number of temporary alarm receivers in a PX is a technical limit. The recommended limit is lower. This takes account of the fact that additional devices may be connected for service purposes.

11

The number of temporary alarm receivers in a PX is a technical limit. The recommended limit is lower. This takes account of the fact that additional alarm receivers (third-party) may have entries in this list.

12

Parallel engineering (commissioning ) is possible subject to the following restrictions:

- Node setup: Only one XWP per LonTalk/IP segment.

- Download and online operation: only one XWP for each automation station.

14

In pressurized rooms with or without fume hood, all automation stations of a room must be connected to a switch in a starlike manner to ensure high availability.

15

Desigo room automation stations do not belong to a PX site (no primary copy function).

16

For the system configurations of the Desigo CC management platform, see Desigo CC System Description (A6V10415500).

17

50: If Lon PX exists in the PX site. 100: If no Lon PX exist in the PX site (only IP PX).

18

These limits in the Desigo system refer in particular to Desigo Insight. The limits may be significantly lower due to the PTP connection(s) outside the Desigo system and their technical limitations. Examples of such limitations outside the Desigo system can include available bandwidth for the PTP link or available modem speeds.

19

This limit can be exceeded if all BACnet devices are located within the same IP subnetwork, or if no communication between the various BACnet/IP networks is required.

20

These limits apply only to IP-based DXR2 devices.

21

These limits apply to MS/TP-based DXR2 devices.

23

Multiple IP segments per BACnet internetwork.

24

One IP segment per BACnet internetwork.

For more information about networks, see Application Guide for IP Networks in Building Automation Systems (CM110668).