Communication with DDC controllers and devices by the Honeywell company

The Honeywell company produces more types of devices with more communication possibilities. The following section deals with individual possibilities.

1. C-BUS: communication with EXCEL family DDC controllers

For communication of the PROMOTIC application by the C-BUS protocol with the EXCEL 5000 (EXCEL 20/50/80/100/500/600/800) family DDC controllers it can be used the OPC server by the KZK company. The OPC server is also available in a version for EXCEL IRC and EXCEL EMC controllers.

Trade terms:
The usage OPC (the PmOpcUaClient communication driver or PmaOpcDaClient object) requires purchase of the "PmOPC" licence. When developing the application in the freeware mode PmFree, or with development environment and while testing it in runtime, this component is always functional.

Technical support:
KZK Ltd. Mlýnská 570, 798 17 Smržice, Czechia
email:,, Phone: +420 581 111 685

2. Communication with TDC300 DDC controllers

It is possible to communicate with the TDC300 DDC controllers by the Modbus RTU protocol.
For this communication in the PROMOTIC system can be used:

3. Communication with the UDC family DDC controllers

Controllers of the older UDC 1000/1500 series even of the newer UDC 1200/1700 series communicate over the interface RS485 by the ASCII and Modbus RTU protocols.
For this communication in the PROMOTIC system can be used:
PROMOTIC 9.0.23 SCADA system documentation MICROSYS, spol. s r.o.

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