Communication with systems by the TEDIA company (Czechia)
, Czechia) is manufacturing the measuring devices, cards and MicroUnit series
modules for distributed systems. A list of communication options between these devices and the PROMOTIC application is following.
Communication with MicroUnit modules
The MicroUnit series
modules kit can be used especially for distributed systems design for monitoring or controlling of technological processes. Each module acts as remote intelligent unit procesing analog/digital signals and communicating with superior computer via serial link of RS485
Communication by the Modbus protocol
New types of MicroUnit modules support the Modbus RTU protocol (since 2011).
For this communication in the PROMOTIC system can be used: PmModbusMr - Driver for communication by the Modbus Master protocol.
For easy integration of this driver into the application it is handy to use:
Communication with DAQ cards
For the data transfer from DAQ
cards into the PROMOTIC application drivers by the TEDIA
company can be used:
For ISA DAQ cards the TED_DAQ driver.
For PCI DAQ cards the TED_DAQ01 driver.
The above mentioned drivers are in fact DLL libraries that can be accessed in the PROMOTIC system using the PmaDll object.