| Glossary |
|
|
EMC | electromagnetic compatibility. Devices that meet EMC requirements can operate |
| within a system’s expected electromagnetic limits without error. |
EMI | electromagnetic interference. EMI can cause an interruption, malfunction, or |
| disturbance in the performance of electronic equipment. It occurs when a source |
| electronically transmits a signal that interferes with other equipment. |
EOS | end of segment. When more than one segment of I/O modules is used in an island, |
| an STB XBE 1000 EOS module is installed in the last position in every segment that |
| has an extension following it. The EOS module extends island bus communications |
| to the next segment. |
Ethernet | A LAN cabling and signaling specification used to connect devices within a defined |
| area, e.g., a building. Ethernet uses a bus or a star topology to connect different |
| nodes on a network.0 |
Ethernet II | A frame format in which the header specifies the packet type, Ethernet II is the |
| default frame format for STB NIP 2212 communications. |
|
|
F
fallback state | A safe state to which an Advantys STB I/O module can return in the event that its |
| communication connection fails. |
fallback value | The value that a device assumes during fallback. Typically, the fallback value is |
| either configurable or the last stored value for the device. |
FED_P | Fipio extended device profile. On a Fipio network, the standard device profile type |
| for agents whose data length is more than eight words and equal to or less than |
| |
Fipio | Fieldbus Interface Protocol (FIP). An open fieldbus standard and protocol that |
| conforms to the FIP/World FIP standard. Fipio is designed to provide |
| configuration, parameterization, data exchange, and diagnostic services. |
Flash memory | Flash memory is nonvolatile memory that can be overwritten. It is stored on a special |
| EEPROM that can be erased and reprogrammed. |
FRD_P | Fipio reduced device profile. On a Fipio network, the standard device profile type for |
| agents whose data length is two words or less. |
890USE19600 April 2004 | 57 |
