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The 1756-IV32 is a 32-point digital DC sourcing input module for ControlLogix systems, occupying a single slot in the chassis. This module features a removable terminal block and status displays, and it supports software-configurable digital filters, Change-of-State detection, and event timestamping with ±200 µs accuracy.
Per-Channel Independent Digital Filtering
±200 µs Precise Timestamping
Independent Status Indicators
This module effectively protects the ControlLogix backplane from electromagnetic interference in harsh field environments, thanks to its outstanding electrical isolation design and high reliability. Its flexible, software-configurable features allow users to freely adjust input filter times to accommodate different field noise conditions, while its supported Electronic Keying feature prevents human errors during module maintenance and replacement. Combined with high-precision dynamic timestamping, it is particularly well-suited for Sequence of Events (SOE) recording, high-speed counter triggering, and precise synchronization control in complex automated production lines.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Allen Bradley 1756-IV32 ControlLogix Sourcing Input Module Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Automotive Manufacturing
Capturing high-speed discrete signals from NPN proximity sensors to detect car body positioning and clamp status on the conveyor.
Food and Beverage Processing
Tracks bottle counts and cap detection to trigger precision product rejection via COS.
Pharmaceutical Manufacturing
Gathering interlock signals from safety doors and limit switches to ensure the sterile environment remains sealed during operation.
Oil and Gas Refineries
Reading open/close position feedback switches from field valves and pressure switches to prevent pipeline overpressure.
Semiconductor and Electronics
Interfacing with NPN-type fiber optic sensors on pick-and-place machines to verify precise wafer positioning.
Power Generation and Utilities
Monitoring auxiliary contact states of circuit breakers and disconnect switches with ±200 µs timestamping for sequence-of-events recording.
When installing and operating the 1756-IV32, ensure strict compliance with its sourcing input logic by connecting only sinking (NPN) field devices, and verify that the external 12/24V DC power supply's negative terminal (0V DC) is correctly wired back to the corresponding group's common terminal (DC COM) to complete the current loop.
Additionally, to avoid signal interference and hardware damage, keep the field wiring separate from high-voltage AC cables, utilize the software-configurable digital filters to eliminate mechanical contact bounce, and do not exceed the 250V continuous group-to-group and group-to-backplane electrical isolation limits.
Alternative Names
Alternative Names
1756-1V321756 IV32I756-IV32
Technical notes
Technical notes
The input data collected by the 1756-IV32 can be simultaneously read by multiple Logix controllers across the backplane or over an industrial network (such as EtherNet/IP) through the Multiple Owners feature, eliminating the need to write complex interlocking or forwarding code in the user program.
It is an Allen-Bradley ControlLogix 32-point, 10 to 30 Volt DC sourcing digital input module.
What product series does 1756-IV32 belong to?
It belongs to the ControlLogix I/O module series.
What status indicators does the 1756-IV32 module provide?
The front panel features an OK status LED for overall module health and 32 amber LEDs indicating the individual on/off status of each input channel.
How are its 32 channels grouped and isolated internally?
The 32 input channels are split into two fully independent groups, containing 16 channels per group.
How many parts do you have in stock?
We have an extensive stock base consisting of ten thousands of new and discontinued automation parts including those from leading manufacturers such as:Control Systems (DCS, PLC, CNC) ,Panel Controllers,HMI and Display Panels,Drives,Encoders and Resolvers,Power Supplies.
Do you offer global delivery services?
yes. We ship globally, and we are able to quickly deliver parts globally to any corner of the world. Unless otherwise specified, we will ship your order via (DHL). We can also ship through FedEx, UPS, and TNT. We can also use your account.
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Disclaimer: We are not an authorized distributor or distributor of the product manufacturer of this website, The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because our company is not an authorized distributor of this product, the Original Manufacturer`s warranty does not apply.While many DCS PLC products will have firmware already installed, Our company makes no representation as to whether a DSC PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Our company also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from our company, its distributors, or any other source. Our company also makes no representations as to your right to install any such firmware on the product. Our company will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.
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