1734-IE8C 8-Channel Analog Input Module 4-20mA | Allen-Bradley

The Original New Allen-Bradley 1734-IE8C 8-Channel High Density Analog Current Input Module is a POINT I/O high-performance analog input device designed for precision current signal acquisition in distributed industrial automation systems. Featuring eight single-ended, non-isolated input channels with Delta‑Sigma conversion technology, this module provides reliable monitoring of 4‑20 mA or 0‑20 mA signals from pressure transmitters, flow meters, level sensors, and other process instruments. Selectable notch filters allow optimization of input update rate and step response for different application requirements. Fully compatible with POINT I/O communication adapters and Rockwell Automation controllers.

Core Engineering Highlights:
8-channel 4-20mA / 0-20mA analog current inputs | 16-bit resolution (0.32 µA/count) | Delta‑Sigma conversion | 0.1% absolute accuracy @ 25°C | Selectable notch filter for optimized response | 75 mA POINTBus current | −20°C to +55°C operating temperature | Keyswitch position 3

Key Features:

• Original New Allen-Bradley 1734-IE8C module

• 8 single-ended, non-isolated analog current input channels

• Input signals: 4-20 mA or 0-20 mA, user-configurable

• 16-bit resolution over 0-21 mA range (0.32 µA/count)

• Delta-Sigma conversion type for high-precision measurement

• 0.1% absolute accuracy at 25°C full scale

• Selectable notch filter frequencies: 50, 60, 100, 120, 200, 240, 300, 400, 480 Hz

• Selectable input update rates: 480 ms to 50 ms (depending on notch filter)

• Selectable step response: 60 ms to 6.25 ms per channel (depending on notch filter)

• Signed integer data format (-32,768 to +32,767)

• Channel-level diagnostics with status LEDs

• Keyswitch position: 3

• Removable Terminal Block (RTB) compatible with 1734-TB and 1734-TBS

• DIN rail mounting, open-style enclosure

• Compact 12 mm width for space-constrained panels

• Conformal coated version available for harsh environments (1734-IE8CK)

Applications:

• Process variable monitoring (pressure, flow, level) with 4-20 mA transmitters

• Industrial process control and data logging

• Packaging machinery and material handling systems

• OEM equipment requiring distributed analog I/O

• Factory automation and machine control panels

• High-density analog input applications

Technical Specifications:

• Catalog Number: 1734-IE8C

• Product Family: POINT I/O Analog I/O

• Product Type: High Density Analog Current Input Module

• Inputs: 8 (single-ended, non-isolated)

• Input Signal Ranges: 4-20 mA, 0-20 mA (user-configurable)

• Resolution: 16 bits over 0-21 mA (0.32 µA/count)

• Absolute Accuracy: 0.1% Full Scale @ 25°C

• Accuracy Drift w/Temperature: 30 ppm/°C

• Conversion Type: Delta‑Sigma

• Input Impedance/Resistance: 60 Ω

• Common Mode Rejection Ratio: −120 dB

• Normal Mode Rejection Ratio: −60 dB

• Notch Filter (selectable): 50, 60, 100, 120, 200, 240, 300, 400, 480 Hz

• Input Update Rate (selectable): 480 ms to 50 ms per module

• Step Response (selectable): 60 ms to 6.25 ms per channel

• Data Format: Signed Integer

• POINTBus Current: 75 mA @ 5V DC

• Isolation Voltage: 50V continuous, basic insulation type. Type tested at 1500V AC for 60s. No isolation between individual inputs

• Keyswitch Position: 3

• Terminal Base Compatibility: 1734-TB, 1734-TBS

• Dimensions (HxWxD): 56 x 12 x 75.5 mm (2.2 x 0.47 x 2.97 in.)

• Weight: Approx. 0.04 kg

• Enclosure Type: Open-style (IP20)

• Mounting: DIN Rail

• Operating Temperature: –20°C to +55°C

• Storage Temperature: –40°C to +85°C

• Max. Ambient Humidity (non-condensing): 95%

• Pollution Degree: 2 industrial environment

• Altitude: Up to 2000 m (6562 ft) without derating

• Certifications: CE, cULus, KC, RCM, UL, China CCC, IECEx, ATEX Zone 2

• UPC: 612598347872

• Country of Origin: Multiple (varies by manufacturing location)

System Compatibility:

• Rockwell Automation POINT I/O communication adapters (1734-AENT, 1734-AENTR)

• POINT I/O backplane systems

• ControlLogix, CompactLogix, and GuardLogix controllers

• EtherNet/IP, ControlNet, and DeviceNet networks

• 1734-TB / 1734-TBS terminal base assemblies

• Studio 5000 Logix Designer® application with Add-on Profiles

Related Products:

• 1734-AENTR – EtherNet/IP adapter for distributed POINT I/O systems

• 1734-TB – Terminal base for field wiring (screw type, 8-pin)

• 1734-TBS – Terminal base for field wiring (spring clamp, 8-pin)

• 1734-TOP – One-piece mounting base (screw type, 8-pin)

• 1734-TOPS – One-piece mounting base (spring clamp, 8-pin)

• 1734-IE8CK – Conformal coated version for harsh environments

• 1734-IE4C – 4-channel analog current input module

• 1734-IE2C – 2-channel analog current input module

• 1734-OE4C – 4-channel analog current output module

• 1734-OE8C – 8-channel analog current output module

PLC ERA is an independent industrial automation distributor supplying 100% genuine Original New products through established global supply channels. Allen-Bradley, POINT I/O, ControlLogix, and CompactLogix are trademarks of Rockwell Automation.