| As most PLCs and data sources use proprietary communication protocols, these protocols are implemented in a so-called communication driver. | • | Thecommunication driver has an ID consisting of a few characters. | 
| • | A connection to a data source or PLC is designated as a communication channel. | 
| • | Connections to several and different data sources can be defined at the same time. | 
| • | The communication channels are defined in the Hosts tables. | 
    The following drivers are currently available: 
| ID | Designation | PLC | Host table |  
| PLCH | Codesys Plc Handler |  | PlcHosts |  
| RS7 | 
 | | • | S7 controllers with Ethernet CP module (e.g. CP-343) or S7-1200 | 
 | Rs7Hosts |  
| ADS | 
 | | • | Beckoff Twincat (currently only symbolic, i.e. no BK bus coupler) | 
 | AdsHosts |  
| MIIF | 
 |  | MiifHosts |   See also:   |