Allen-Bradley 1746-ITB16 SLC 500 fast response discrete sinking input module

Manufacturer

Allen Bradley

Category

PLCs

Product Line

SLC 500

Part Number

1746-ITB16

GTIN

10662468070529

Weight

0.56 lbs (0.26 kg)

Module Type

Fast response discrete input module

Nom Input Voltage

24VDC

Input Voltage Range

10-30 VDC

Wiring configuration

Sink wiring configuration

Backplane current consumption

0.085 A

Signal delay, max. resistive load

On = 0.3 ms; Off = 0.5 ms

Off-state Voltage, max

5VDC

Off-state current, max

1.5 mA

Nominal input current

8 mA at 24VDC

Voltage Range

10-30 Volts DC Sink

Inputs

16

Backplane Current (5 Volts DC)

85 milliamps

Signal delay

0.3 or 0.5 milliseconds

Off State Current

1.5 milliamps

Applications

Combination 120 Volts AC I/O

UPC

10662468070529

The 1746-ITB16’s operating voltage is 10-30VDC with nominal voltage of 24VDC. It supports sink wiring configuration and has a backplane current draw of 0.085 A at 5VDC. Each channel of the module has a maximum signal delay of 0.43 ms for OFF to ON transition and 0.5 ms for ON to OFF transition while the maximum OFF state voltage is 5VDC and maximum OFF state current is 1.5 mA. The module’s nominal input current is 8 mA at 24VDC.

This module occupies a single slot of the of the 1746 chassis and directly attached to the chassis backplane. This module does not support removal under power (RIUP) thus, install this module only when power is removed from the chassis.

This module requires a backplane current of 0.85 A at 5V DC. It has a maximum signal delay of 0.3 ms at On-state and 0.5 ms at Off-state. It has maximum Off-state current and voltage of 1.5 mA and 5V DC respectively. The 1746-ITB16 has a nominal input current of 8 mA at 24V DC and maximum power dissipation of 3.6 W. With its rapid operation, it is suitable for time-critical applications. The 1746-ITB16 is responsible for receiving and storing analog data in a digital format in its data image table for retrieval by all modular and fixed SLC 500 processors. It supports connections from up to eight separate sensors or actuators for various applications. Its removable terminal blocks eliminate the need to disconnect wires, which makes replacement easy. The 1746-ITB16 also has filter circuitry and optical coupling for reducing signal noise. The 1746-ITB16 module input values can be accessed by SLC 500 processors using Ladder Logic programming. Troubleshooting becomes easier with the LED indicators that show the module’s input status values. The 1746-ITB16 uses a sharing-based hardware platform which includes various combinations of digital and analog I/O. This saves cost and space. The 1746-ITB16 is intended for operation in an environment with a temperature of 32 - 140 °F and a noncondensing relative humidity of 5-95%.

Q1. How does the AB 1746-ITB16 leverage advanced RTD input processing to deliver exceptional temperature measurement accuracy in industrial automation systems?
A: The AB 1746-ITB16 is engineered to acquire and process RTD sensor signals with high precision, enabling reliable temperature monitoring and control for critical manufacturing and process applications.

Q2. What distinguishing features of the AB 1746-ITB16 enhance signal integrity when interfacing with multiple RTD sensing devices?
A: The AB 1746-ITB16 incorporates sophisticated filtering, linearization, and diagnostic functions that help reduce noise interference and ensure stable, accurate temperature readings across all channels.

Q3. Why is the AB 1746-ITB16 particularly advantageous for high-density thermal monitoring within SLC 500 control environments?
A: With support for up to 16 RTD input channels, the AB 1746-ITB16 enables centralized temperature data acquisition, minimizing hardware requirements while maximizing operational visibility and efficiency.

Q4. How can the AB 1746-ITB16 contribute to predictive maintenance initiatives and process optimization strategies?
A: The AB 1746-ITB16 continuously captures precise temperature data, allowing engineers to detect abnormal thermal conditions, identify potential equipment degradation, and implement proactive maintenance measures.

Q5. In what types of industrial applications does the AB 1746-ITB16 demonstrate its greatest performance advantages, and why?
A: The AB 1746-ITB16 is ideally suited for applications such as power generation, chemical processing, food manufacturing, and thermal management systems, where accurate RTD-based temperature measurement is essential for process stability and product quality.

1756-L61S

1756-LSP

1757-SRM

1756-L63

1756-OB16D

1768-EWEB

1756-L63XT

1756-OF6VI

1769-ADN

1756-L64

1756-PA75R

1769-BA

1756-L65

1756-PB75

1769-IQ32

1756-L71S

1756-RIO

1769-IR6

1756-L72

1756-RMC3

1771-DB

1756-LSC8XIB8I

1756SC-IF8H

1771-IK