Output isolator for positioners, i/p-converters or displays in hazardous areas.
Isolating power supply for 4-wire devices in hazardous areas
EIA-485 interface for Modbus RTU, PROFIBUS RS 485‑IS and BACnet MS/TP communication.
- The isolating power supplies are used for the intrinsically safe operation of 4‑wire devices.
- The isolating power supply supplies the 4-wire devices with power.
Design
The EIA‑485 transmitter isolating power supply consists of a compact plastic enclosure (IP20) in the SIMATIC S7‑1200 design, and is equipped with plug-in screw terminals. On the front are a green LED for indicating the auxiliary power supply status and a yellow LED for signaling communication. The push-in screw terminals are jumpered on the EIA‑485 transmitter isolating power supply, allowing the power supply and primary-side communication to further SITRANS I300 devices to be looped through.
The SITRANS I300 Advantage
- Suitable for 4-wire devices
- Galvanic isolation between EIA‑485 and EIA‑485‑IS, between the power supply and EIA‑485‑IS, and between the power supply on the input side and the intrinsically safe power supply on the output side.
- Intrinsically safe power supply and communication [Ex ia] IIC
- Installation permissible in Zone 2 and Div. 2
- Diagnostics via LEDs
- Integrated, connectable bus termination on the non-hazardous side and the hazardous side
- Transmission rates of 1 200 bps to 1.5 Mbps
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