| A/B slaves | for expanding the address space to 62 slaves in an AS-Interface network |
| Adapter | is a passive device in a ControlNet with respect to cyclic data traffic. It cannot independently establish a cyclic connection to another node but acyclic connections are always possible. |
| Analog module | for transmitting up to 24 bit analog values utilizing a sequential data transfer |
| AS-Interface power supply | for supplying the whole system with power while concurrently decoupling the data |
| AT | drive telegram, each slave sends its AT during the corresponding time slot |
| Bit strobe | Multi/Broadcast I/O data exchange |
| Bootup | Node start-up sequence |
| CIP | (Control and Information Protocol) describes the means of addressing in order to create a connection to a communication object in a ControlNet node. |
| Consumer | device that receives data |
| Consumer/ Producer | describes the process for characterizing and addressing data within a ControlNet system. |
| COS | change of state transfer of I/O data when data has changed |
| CP0-CP4 | communication phase |
| Cyclic | timer-controlled data transfer |
| DP | Decentral periphery |
| DPM1 | master class 1 controls the cyclic data exchange |
| DPM2 | master class 2 diagnostic, configuration and monitor |
| DPV1 | DP extension, acyclic services |
| EMCY | Emergency, Emergency notification |
| Explicit messaging | acyclic data channel |
| FDL | Fieldbus Data Link defines the PROFIBUS communication on layer 2, identical for DP and FMS |
| FMS | Fieldbus Message Specification |
| Generation 4 | latest InterBus technology generation |
| GSD | Device description file |
| Guarding | Monitoring the node |
| Hub | Central connection device for star-shaped cabling |
| ID-Code | device classification code |
| IDN | Identification number |
| Length code | coded device I/O length information |
| Local bus | local branch from main cable |
| Loop | InterBus transfer technology for simple sensors/actuators |
| Master | active device, controls the bus access |
| MDT | Master Data Telegram, data to the slaves, broadcast |
| Media redundancy | of the network is a system option for reducing shut downs of the whole network. |
| Monomaster | one master in the network |
| MST | Master Synchronization Telegram, allows the synchronization of all connected slaves via an AT |
| Multi-master | multiple masters in the network |
| NMT | Network management |
| PA | Process Automation |
| Parameter data | for acyclic control of AS interface slaves, e.g. shutting the sending diode of a light barrier on or off |
| PCP | Peripherals Communication Protocol acyclic data channel |
| PDO | Process Data Object, Process data channel |
| PDO mapping | Configuration of process data per PDO |
| Polling | acyclic I/O data exchange |
| Predefined Master/Slave | predefined connection set up between master and slave |
| Producer | Device that sends data |
| Remote bus | RS422 or fiber-optics conductor main cable |
| SAP | Service Access Point |
| Scanner | is required for establishing cyclic data traffic between ControlNet-participants. It is therefore responsible for the organization of the NUI (Network Update Interval). |
| Scheduled Data Exchange | is a scheduled cyclic data exchange for transmission of input/output data. |
| SDO | Service Data Object, acyclic data channel |
| SERCOS | Serial Real-Time Communication System |
| Slave | passive device, answers to the master |
| Switch | Central intelligent connection device for star-formed cabling and solution of access conflicts |
| SYNC | Sychronization cycle of the master |
| TCP/IP | Transport Control Protocol/Internet Protocol connection-orientated, secure transfer protocol as basis for the Internet protocols |
| UCMM | Unconnected Message Manager |
| UDP | User Datagram Protocol connectionless, unsecured data transfer protocol for broadcast and multicast communication |
| Unscheduled Data Exchange | is an unscheduled acyclic data exchange for transmitting configuration or parameter data. |
