Product Description

Model Number Interpretation

• 45C: Prefix for Reliance AutoMate 45C-series control components.

• 341: Designates an 8-channel 0–5 VDC analog input module.

• No suffix: Original hardware revision; no common lettered variants (A/B/C/D).

Technical Specifications

• Input Channels: 8 single-ended channels

• Input Range: 0–5 VDC (field-configurable)

• Resolution: 12-bit ADC

• Conversion Rate: ~10 ms per channel

• Accuracy: ±0.1% of full scale (25°C)

• Input Impedance: >1 MΩ

• Backplane Voltage: 5 VDC, 200 mA

• Slot Occupation: 1 slot (standard AutoMate rack)

• Operating Temperature: 0°C to +55°C

• Dimensions: ~96.5 × 70.5 × 56.5 mm

• Weight: ~0.45 kg

• Isolation: Channel-to-backplane isolation (500 Vrms)

Interface & Configuration

• Mounting: Side-insertion into standard AutoMate 45C31x racks, secured with screws.

• Backplane Connection: Edge connector for power, data, and status signals.

• Front Panel: 8-channel LED status indicators (per-channel input ok/fault).

• Terminal Block: 16-pin removable screw terminal for field wiring (signal +/–, shield).

• Configuration: No jumpers; range set via PLC software.

Core Functions

• Converts 0–5 VDC analog signals from sensors (temperature, pressure, flow) to 12-bit digital values.

• Provides 8 isolated input channels for high noise immunity.

• Transmits digital data to the PLC CPU via the backplane for processing.

• Supports scaling and filtering via PLC programming.

• Detects open/short circuit and overvoltage faults; reports to CPU and lights channel LED.

Application Scenarios

• Analog input expansion for AutoMate 30/40 series PLC racks.

• Legacy industrial systems: manufacturing lines, process control, water treatment, HVAC.

• Monitoring 0–5 VDC sensors (pressure, level, temperature, flow).

• High-density analog input applications requiring 8 channels per slot.

Usage & Maintenance

• Installation: Power off the rack, insert module into slot, tighten screws.

• Wiring: Connect sensor signals to terminal block; use shielded cable, ground shield at one end.

• Configuration: Set input range (0–5 VDC) in PLC programming software.

• Routine Check: Verify channel LEDs monthly; clean terminal block quarterly.

• Safety: Disconnect AC power before removal; avoid live wiring.