The integration of third-party devices and systems on the field level is appropriate:

  • For communicative pumps, meters, etc.
  • For small numbers of data points (10 to 100/160 data points)

TX Open is suitable for the integration of a few data points (from 10 to 160 data points). These data points can be processed further in the automation system or used for visualization in Desigo CC.

  • The TXI1.OPEN module supports up to 100 data points and has an RS232/RS485 interface.
  • The TXI2.OPEN module upports up to 160 data points and has in addition an ethernet connection for remote access, diagnosis and remote engineering.
  • The TXI2-S.OPEN module supports up to 40 data points.

The TXI1.OPEN or TXI2.OPEN module is loaded with the protocol applications for Modbus/M-Bus/GENIbus/G120P and then works as the Modbus/M-Bus/USS/GENIbus client. The values of the Modbus/M-Bus/GENIbus/G120P data points and the status of the existing data connection with the data points are transmitted to the automation station via the island bus and mapped to BACnet objects in the automation station. This way, the Modbus/M-Bus/GENIbus/G120P data points can be made available to all the devices and applications in the Desigo system.

The PXC50..D, PXC100..D and PXC200..D automation stations support TX Open. You can attach up to five TX Open modules to one PXC automation station.

Xworks Plus (XWP) is used to engineer all solutions. Various compounds are available, e.g., for pumps, variable speed drives and heat meters.

Predefined solutions allow for simple commissioning. Solutions for Grundfos, Wilo, Danfoss and G120P are delivered as part of the HQ CAS Library. For M-bus and Modbus, sample solutions serving as device description templates are provided (TX Open templates).

The following solutions on the TX Open platform are available:

  • TX Modbus
  • TX M-Bus
  • TX G120P/SED2
  • TX Grundfos via GENIbus
  • TX Open platform (SDK)

TX Modbus

TX Modbus supports Modbus RTU and Modbus TCP, Wilo pumps and variable speed drives. TXI2.OPEN supports 160 data points. They may be distributed in any fashion to the devices for the Modbus system. The number of devices is only limited by the 160 data points.

See TX Modbus Engineering Guide (CM110571).

TX M-Bus

TX M-Bus supports templates for meters. The regional companies can create templates. You need a level converter for TX M-Bus. TXI2.OPEN supports 160 data points. They may be distributed in any fashion to the devices for the M-bus system. The number of devices is only limited by the 160 data points.

See TX M-Bus Engineering Guide (CM110572).

TX G120P

TX G120P supports the integration via the Modbus and USS protocol. You can integrate up to eight G120P variable speed drives per TX Open module into the Desigo system.

See TX G120P Engineering Guide (CM110576).

TX SED2

TX SED2 supports the integration via the USS protocol. You can integrate up to eight SED2 variable speed drives per TX Open module into the Desigo system.

You can add new G120P variable speed drives to an existing TX Open (USS) with already installed SED2 drives, e.g., when:

  • A defective SED2 needs to be replaced with a G120P in an existing project
  • An existing project with installed SED2 drives needs to be extended with a new G120P

See TX SED2 Engineering Guide (CM110573).

TX Grundfos via GENIbus

TX Grundfos supports the integration of Grundfos via GENIbus. You can integrate up to eight Grundfos pumps into the Desigo system.

See TX Grundfos / GENIbus Engineering Guide (CM110574).

TX Open Platform (SDK)

HQ provides the TX Open Platform Software Development Kit (SDK), including training, for experts in the regional companies. The training course provides the necessary tools and knowledge to create new protocol applications.