Allen Bradley 1746-IN16 SLC 500 Digital Input Module

admin — Thu, 16 Apr 2026 08:35:07 +0000

Product Introduction

The Allen Bradley 1746-IN16 SLC 500 Digital Input Module is a reliable 16-channel digital input module designed for use within the SLC 500 control system family by Rockwell Automation. It is engineered to monitor field signals from various AC/DC input devices and transmit accurate status information to the programmable controller.

This module supports both 24V AC and DC input signals, making it highly adaptable in mixed-signal environments. With 16 input points grouped per common, it simplifies wiring while maintaining signal integrity. The design ensures stable signal acquisition even in electrically noisy industrial settings, which is critical for maintaining control system reliability.

Widely deployed in legacy and ongoing automation systems, the 1746-IN16 remains a practical choice for maintaining and expanding existing SLC 500 installations where proven stability and compatibility are essential.

Product Specifications

Parameter	Value
Module Type	SLC 500 Digital Input Module
Input Type	Digital AC/DC
Number of Inputs	16 Points
Input Voltage Range	24 V AC/DC
Frequency Range	50/60 Hz
Points per Common	16
Input Current (Typical)	~8 mA @ 24V
Signal Delay (On/Off)	Typical 8–12 ms
Backplane Current	Approx. 0.085 A @ 5V
Isolation	Electrical Isolation Between Field and Backplane
Wiring Configuration	Shared Common
Status Indicators	Individual LED per Channel
Operating Temperature	0 to 60°C
Storage Temperature	-40 to 85°C
Humidity	5–95% non-condensing
Mounting	Chassis-based (SLC 500 Rack)
Dimensions	144.5 × 34.6 × 130.18 mm
Weight	0.27 kg

Applications

● Used for monitoring field input signals such as push buttons, limit switches, and sensors

● Suitable for industrial control panels requiring stable AC/DC signal acquisition

● Applied in manufacturing automation systems, especially legacy SLC 500 platforms

● Common in material handling systems, detecting position and status signals

● Ideal for process control environments, where reliable discrete input feedback is required

● Used in retrofit and maintenance projects, extending the life of existing SLC systems

Advantages

● Supports both AC and DC input signals, increasing application flexibility

● Provides 16 input channels per module, improving system density

● Designed for stable operation in noisy environments, ensuring signal accuracy

● Integrated LED indicators per channel for quick diagnostics and troubleshooting

● Compatible with existing SLC 500 systems, reducing upgrade complexity

● Proven reliability with long-term deployment in industrial automation systems

Allen Bradley 1746-IN16 SLC 500 Digital Input Module最先出现在Excellent PLC。

Allen Bradley 1746-IN16/C SLC 500 Digital Input Module

admin — Wed, 21 Jan 2026 08:22:29 +0000

Product Introduction

The Allen Bradley 1746-IN16/C SLC 500 Digital Input Module is a Series C version of the standard 16-channel digital input module designed for the SLC 500 platform by Rockwell Automation. It is specifically engineered to interface field input devices with the controller, ensuring accurate and stable signal acquisition in industrial environments.

Supporting both 24V AC and DC input signals, this module offers strong flexibility in mixed-signal systems. The Series C revision introduces incremental improvements in reliability and noise immunity, making it better suited for demanding industrial conditions. With 16 input points sharing a common reference, the module simplifies wiring while maintaining consistent performance.

The 1746-IN16/C is widely used in legacy automation systems and remains a dependable choice for maintenance, system expansion, and replacement applications within existing SLC 500 installations.

Product Specifications

Parameter	Value
Module Type	SLC 500 Digital Input Module (Series C)
Input Type	Digital AC/DC
Number of Inputs	16 Points
Input Voltage Range	24 V AC/DC
Frequency Range	50/60 Hz
Points per Common	16
Input Current (Typical)	~8 mA @ 24V
Signal Delay (On/Off)	Typical 8–12 ms
Backplane Current	Approx. 0.085 A @ 5V
Isolation	Electrical Isolation Between Field and Backplane
Wiring Configuration	Shared Common
Status Indicators	Individual LED per Channel
Operating Temperature	0 to 60°C
Storage Temperature	-40 to 85°C
Humidity	5–95% non-condensing
Mounting	Chassis-based (SLC 500 Rack)
Dimensions	144.5 × 34.6 × 130.18 mm
Weight	0.27 kg

Applications

● Used for collecting digital signals from push buttons, limit switches, and proximity sensors

● Suitable for mixed AC/DC input environments, improving system flexibility

● Applied in manufacturing automation systems, especially legacy SLC 500 installations

● Common in process industries, where stable and reliable input monitoring is essential

● Ideal for equipment retrofitting and system upgrades, maintaining compatibility with existing hardware

● Used in material handling and packaging systems, ensuring accurate status feedback

Advantages

● Supports both AC and DC input signals, reducing the need for multiple module types

● Provides 16 input channels in a single slot, optimizing rack space usage

● Series C version offers enhanced noise immunity and improved reliability

● Integrated LED indicators for each channel, simplifying troubleshooting

● Ensures seamless integration with SLC 500 systems, avoiding complex reconfiguration

● Proven long-term stability in industrial automation environments

Allen Bradley 1746-IN16/C SLC 500 Digital Input Module最先出现在Excellent PLC。

SLC 500 Digital Input Module - Excellent PLC

Allen Bradley 1746-IN16 SLC 500 Digital Input Module

Product Introduction

Product Specifications

Applications

Advantages

Allen Bradley 1746-IN16/C SLC 500 Digital Input Module

Product Introduction

Product Specifications

Applications

Advantages