Introduction

The GE IC693MDL655H Series 90-30 DC Positive/Negative Logic Input Module is a high-density digital input solution designed for GE Fanuc Series 90-30 programmable logic controller systems. Featuring 32 input points and flexible positive/negative logic capability, it provides a reliable interface between industrial field devices and PLC control logic.

Engineered for demanding automation environments, the IC693MDL655H allows multiple sensors, switches, and control devices to be connected within a single PLC slot, helping reduce cabinet space requirements while maintaining efficient system organization.

With proven Series 90-30 compatibility, strong electrical isolation, and dependable DC signal processing, this module remains a practical choice for maintaining and expanding established industrial automation installations.

Technical Specifications

Specification	Description
Manufacturer	GE Fanuc / Emerson
Model	IC693MDL655H
Product Type	DC Positive/Negative Logic Input Module
Product Family	Series 90-30
Input Type	Discrete DC Input
Number of Inputs	32 Points
Input Groups	4 Groups × 8 Inputs
Rated Voltage	24 VDC
Input Voltage Range	0–30 VDC
Logic Type	Positive Logic / Negative Logic
Input Current	7.0 mA Typical
ON-State Voltage	11.5–30 VDC
OFF-State Voltage	0–5 VDC
ON-State Current	3.2 mA Minimum
OFF-State Current	1.1 mA Maximum
Response Time	2 ms Maximum ON/OFF
Isolation	1500 VAC Field-to-Logic
Group Isolation	250 VAC Between Groups
Internal Power Consumption	195 mA Maximum from +5 VDC Bus
Status Indicators	Individual Input LEDs
Mounting Type	Series 90-30 Baseplate Slot
Operating Temperature	0°C to +60°C
Dimensions	Approx. 127 × 32 × 130 mm
Weight	Approx. 0.30 kg

Recommended Companion Models

Model	Product Name
IC693PWR330H	Series 90-30 High Capacity Power Supply Module
IC693CPU374	Series 90-30 Ethernet CPU Module
IC693CHS391N	Series 90-30 10-Slot Baseplate
IC693MDL753F	Series 90-30 24 VDC Output Module

Frequently Selected Alternatives

Model	Product Name
IC693MDL645F	Series 90-30 24 VDC Positive Logic Input Module
IC693MDL634	Series 90-30 24 VDC Input Module
IC693MDL653	Series 90-30 24 VDC Input Module
IC200MDL650E	VersaMax 32-Point Discrete Input Module

Where It Excels in Industrial Use

GE Fanuc Series 90-30 PLC discrete signal monitoring systems
Industrial sensor and switch status acquisition
Machine automation input monitoring applications
Production line sequence control systems
Motor, valve, and actuator feedback monitoring
Factory automation equipment with multiple field inputs
Packaging and material handling systems
OEM control panels requiring high-density digital inputs
Industrial retrofit projects using Series 90-30 PLC platforms
Distributed machine control applications requiring reliable DC input processing

Key Strengths at a Glance

32-point DC discrete input capability
Supports both positive logic and negative logic wiring
24 VDC nominal input operation
Four isolated input groups with eight points each
Wide 0–30 VDC input range
Fast 2 ms maximum ON/OFF response time
1500 VAC field-side to logic-side isolation
Individual LED indicators for input status monitoring
Compatible with GE Fanuc Series 90-30 PLC systems
Designed for dependable industrial signal acquisition

Technical FAQs

1. What is the primary function of the GE IC693MDL655H?

The IC693MDL655H is a Series 90-30 discrete DC input module designed to collect ON/OFF signals from field devices and transfer digital status information to the PLC CPU. It provides 32 input points for industrial automation applications.

2. How many input channels does the IC693MDL655H provide?

The module provides 32 discrete input points, arranged into four groups of eight inputs.

3. What type of input logic does this module support?

The IC693MDL655H supports both positive logic and negative logic input configurations, providing flexibility for different field wiring requirements.

4. What input voltage range does the module support?

The module operates with a 24 VDC nominal input voltage and accepts an input range from 0 to 30 VDC.

5. What types of field devices can be connected?

Typical devices include proximity sensors, push buttons, limit switches, selector switches, auxiliary contacts, and other discrete DC field devices.

6. Does the IC693MDL655H provide input isolation?

Yes. The module provides 1500 VAC isolation between the field side and logic side, with additional isolation between input groups.

7. What is the response time of the input module?

The IC693MDL655H provides a maximum ON response time of approximately 2 ms and a maximum OFF response time of approximately 2 ms.

8. What diagnostics are available on this module?

The module includes LED indicators that allow operators and maintenance technicians to monitor individual input status and quickly identify field signal conditions.