User Manual

System configuration
Devices
22
322 | 351 CM110664en_07
Reaction times depending on number
of physical data points
Without LonWorks devices Up to 5 LonWorks devices 5 to 20 LonWorks devices
Max. 150 data points < 1s 1-2s 3-4s
Max. 250 data points 1-2s 2-3s 4-5s
Max. 350 data points 2-3s 3-4s 5-6s
22.4.4 PX Open integration (PXC001.D/-E.D)
Item Limit Description
Modbus data points [250*] Max. number of data points per PX Modbus.
SCL data points [250*] Max. number of data points per PX SCL.
M-bus data points [250*] Max. number of data points per PX M-bus.
M-bus meters [250] Max. number of M-bus meters in PX M-bus applications.
22.4.5 PX Open integration (PXC001.D/-E.D + PXA40-RS1)
Item Limit Description
Modbus data points [800*] Max. number of data points per PX Modbus.
SCL data points [800*] Max. number of data points per PX SCL.
M-bus data points [800*] Max. number of data points per PX M-bus.
M-bus meters [250] Max. number of M-bus meters in PX M-bus applications.
22.4.6 PX Open integration (PXC001.D/-E.D + PXA40-RS2)
Item Limit Description
Modbus data points [2,000*] Max. number of data points per PX Modbus.
SCL data points [1,000*] Max. number of data points per PX SCL.
M-bus data points [2,000*] Max. number of data points per PX M-bus.
M-bus meters [250] Max. number of M-bus meters in PX M-bus applications.
22.4.7 PX KNX integration (PXC001.D/-E.D)
These limits also apply to PXC00-U.
The maximum number of devices only applies in cases where only one device type is used. The following
formula applies to mixed operation with third-party devices: 50 * RXB + third-party devices < 2,000 data
points.
Item Limit Description
KNX/EIB data points [2,000*] Max. number of KNX data points that can be integrated (KNX
communication objects).
RXB 45 Max. number of RXB devices per KNX (approx. 50 KNX data points
per RXB, depending on the application).