Technical Specifications PLC System: GE PACSystems RX3i PLC Input Channels: 8‑channel analog input Supported Signal: 4‑20mA, 0‑10VDC Resolution: 14‑bit Operating Temperature Range: 0 ℃ to +60 ℃ Storage Temperature Range: ‑40 ℃ to +85 ℃ Mounting: RX3i rack slot‑mount
Functional Features High‑resolution multi‑channel analog‑to‑digital conversion. Software configurable signal range per channel. Channel‑level open‑loop and over‑range fault detection. Galvanic isolation between field side and PLC logic circuit. Front‑panel LED status indicators for module and channel alarm. Real‑time data exchange with RX3i CPU over backplane bus. Supports hot‑swap operation on compatible RX3i racks.
Application Scenarios Process industry signal measurement, water treatment and chemical auxiliary control, PACSystems RX3i automation system construction and spare‑part maintenance.
Performance Parameters Conversion accuracy: ±0.3% full scale
Structural Characteristics Standard PACSystems RX3i rack‑mount module housing. Front‑panel LED status indicator array. Removable screw terminal block for field analog wiring. Rear gold‑plated high‑speed backplane connector for RX3i PCI‑style rack bus.
Working Principle Field analog current or voltage signals access module input circuits through removable terminal block. Internal high‑resolution ADC chips convert analog physical quantity into digital values. Measurement data is transmitted to RX3i CPU via high‑speed rack backplane bus for user logic processing. Fault monitoring circuit reports loop abnormal status.
Installation Requirements Insert module into valid RX3i rack slot, ensure complete backplane connector engagement. Separate analog signal cables from high‑noise power cables. Keep cabinet ventilation for heat dissipation. Apply ESD anti‑static protection during module handling.
Usage Notes Configure channel signal type and range within PACSystems programming software. Avoid input over‑range signals. Observe hot‑swap specification for target rack before module live replacement.
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