GE Emerson IC694MDL740 16-Point 12 24VDC Positive Logic Sourcing Discrete Output Module
- Product Code: IC694MDL740
- Availability: In Stock
GE Emerson IC694MDL740 16-Point 12/24VDC Positive Logic Sourcing Discrete Output Module for PACSystems RX3i PLC
Manufacturer Background: Former GE Fanuc Intelligent Platforms, now Emerson Automation PACSystems RX3i series digital output module; IC694MDL740 is 16-channel DC sourcing (positive logic) discrete output card, widely used to drive solenoid valves, DC relays, indicator lights, small DC actuators in power, petrochemical, machinery, water treatment control systems, compliant with UL, CE industrial safety standards, hot-swappable design for RX3i universal backplane racks.
Part Number Breakdown: IC694MDL740
- IC694: RX3i series standard I/O module code
- MDL: Discrete digital I/O module family
- 740: 16-point 12/24VDC positive sourcing output hardware model
Product Type: Single-slot hot-swappable rack plug-in digital output module; 16 output points split into two independent optically isolated groups (8 channels/group), positive logic sourcing type (module supplies +DC current to loads), built-in overcurrent & short-circuit protection, independent LED status indicator for each channel.
Matching System Components: RX3i 4/8/14-slot universal backplane chassis; RX3i CPU series IC695CPE/CPK; RX3i rack power supply IC695PSD140E / IC695PSA140E; terminal base IC694TBB032 screw terminal block; Proficy Machine Edition programming software; 12/24VDC field solenoids, relays, indicator lamps.
Core Hardware Overview:
1. Channel & Isolation Architecture
- Total 16 discrete outputs, divided into Group 1 (CH1–8) / Group 2 (CH9–16)
- Optical isolation between field circuit ↔ rack backplane, group-to-group isolation 250VAC continuous, withstand 1500VAC 1min dielectric test, eliminate ground loop interference
2. Electrical Output Parameters (Positive Sourcing Logic)
- Rated field voltage: 12–24VDC; operating range 10.2 ~ 28.8VDC (+20% / -15%)
- Per-point rated current: Max 0.5A DC per output channel
- Per-group total current limit: Max 2A per 8-channel common group
- Inrush current: 4.78A peak for 10ms for inductive loads (solenoids)
- Voltage drop when ON: ≤1V; OFF-state leakage current ≤1mA
- Response time: Max 2ms turn ON / Max 2ms turn OFF
3. Power Consumption
- Draws power from rack 5V backplane bus; total consumption 110mA when all 16 outputs fully energized
- No internal field power supply; external 12/24VDC user power required for field loads
4. Protection & Diagnostics
- Built-in electronic overcurrent, short-circuit automatic shutdown protection (no replaceable fuses on module)
- One green LED per channel, light on when output is energized for direct on-site status check
5. Mechanical & Environmental Spec
- Occupies 1 standard RX3i rack slot; compact vertical plug-in structure, net weight ~0.4kg
- Hot-swappable without full rack power cut; control logic remains operational during module replacement
- Operating temperature: 0°C ~ +60°C cabinet inlet air; storage -40°C ~ +85°C
- Humidity: 5%~95% RH non-condensing; IEC 60068 vibration & shock certified
1. Product Overview
IC694MDL740 is a 16-channel positive logic sourcing DC discrete output module for Emerson RX3i PLC, used to switch 12/24VDC field actuators. The two isolated 8-channel groups allow separate power distribution for different equipment zones, greatly reducing cross-interference in multi-load mixed wiring cabinets.
Positive sourcing wiring mode: Field load connects between 0V ground and module output terminal; module outputs +12/24V current when logic ON, compatible with mainstream domestic and international industrial DC solenoid valves, auxiliary relays, signal lights. Optical isolation completely separates field high-noise circuits from PLC internal logic bus, effectively suppressing inverter, motor switching EMI noise.
Per-channel LED diagnosis enables rapid identification of failed output points; short-circuit automatic protection prevents module burnout caused by field wiring faults. Hot-swap maintenance avoids full system shutdown, improving production uptime for continuous-process equipment such as compressors, turbines, and automated production lines.
