過程介面設備

FieldConnex過程介面用最少的接線連接多個傳統的輸入輸出模組到現場總線。本質安全包括: 感測器和觸發器可安裝在 Zone 0/ Div. 1,過程介面安裝在Zone 1/ Div. 1. I/O模組由現場總線供電，節省接線。過程介面可選擇標準功能模組，選擇不同製造商現場儀錶，靈活性強。

The FieldConnex® Temperature Multi-Input Device (TM-I) integrates up to eight analog signals into digital fieldbus communication in a very efficient and cost-effective way. The following types of devices and signals can be connected:

• Resistive temperature sensors, includes 2-, 3- and 4-wire versions
• Thermocouples
• Other resistance and millivolt signals

Each input is parameterized separately. The TM-I supports cold junction compensation and monitoring of sensor and wire conditions, too.

The FieldConnex® Multi-Input Output (MIO) provides connection for various disrcete signals to the DCS via fieldbus and one single address. The MIO monitors the status of up to twelve NAMUR sensors or controls up to four valves—including final position feedback and automated partial stroke test. Due to its integrated breakaway and runtime monitoring for valves, an alarm signal is emitted when limit values are exceeded. Alternatively, MIO enables overflow and idle level of containers and conduits monitored by vibration limit switches. All inputs and outputs of Multi-Input Output are intrinsically safe. The MIO serves the exact same functions as FieldConnex valve couplers and binary interfaces and as a drop-in replacement with no reconfiguration required at the PLC or DCS. New and unique is the frequency or pulse input for monitoring of rotating equipment.