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allen bradley controllogix 1756 1756 ib16d 16 point diagnostic input module-0

ROCKWELL

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Allen-Bradley ControlLogix 1756 1756-IB16D 16-Point 10-30 VDC Diagnostic Input Module | Original New

Allen-Bradley ControlLogix 1756 1756-IB16D 16-Point 10-30 VDC Diagnostic Input Module | Original New

Allen-Bradley ControlLogix 1756 16-Point 10-30 VDC Diagnostic Input Module
Complete Model
1756-IB16D
Official Product Description
ControlLogix 1756 diagnostic digital input module with 16 sinking inputs in four groups, a 10-30 VDC operating range, open-wire diagnostics and a 36-pin removable terminal block connection.
CORE FEATURE: Sixteen diagnostic 10-30 VDC sinking inputs with open-wire detection and configurable input filtering.
LEAD TIME: In stock
WARRANTY: 1 year
Inquiry
  • Overview
  • Technical Data
  • Inquiry
  • Features
  • Wiring
  • Installation
  • Environment
  • FAQ
  • Recommend Models
  • Recommended Products
Product Overview
1756-IB16D is an Allen-Bradley ControlLogix 1756 DC diagnostic input module for chassis-based industrial control systems.
Rockwell Automation specifies 16 diagnostic sinking inputs arranged as four points per group, a 12/24 VDC voltage category and a 10-30 VDC operating range.
The module provides open-wire diagnostics, configurable input filters, change-of-state operation, input time stamps and electronic module keying in one ControlLogix chassis slot.

Technical Data

Complete model
1756-IB16D
Brand
Allen-Bradley / Rockwell Automation
Product family
ControlLogix 1756
Product type
DC diagnostic digital input module
Inputs
16 diagnostic inputs, 4 points per group
Voltage category
12/24 VDC sink
Operating voltage range
10-30 VDC
Nominal input voltage
24 VDC
Off-to-on delay
340 us nominal, 1 ms maximum, plus 0 ms, 1 ms or 2 ms selectable filter
On-to-off delay
740 us nominal, 4 ms maximum, plus 0 ms, 1 ms, 9 ms or 18 ms selectable filter
Current draw at 5.1 V
150 mA
Current draw at 24 V
3 mA
Total backplane power
0.84 W
Power dissipation
5.8 W maximum at 60 degrees C
Open-wire diagnostic threshold
1.2 mA minimum off-state leakage current
Diagnostic time stamp
+/-1 ms
Input time stamp
+/-200 us
On-state current
2 mA minimum at 10 VDC; 13 mA maximum at 30 VDC
Input impedance
2.31 kOhm maximum at 30 VDC
Isolation voltage
250 V continuous, basic insulation, inputs-to-backplane and group-to-group; no isolation between inputs in one group
Removable terminal block
1756-TBCH or 1756-TBS6H, ordered separately
Dimensions
144.5 x 34.6 x 146.9 mm, height x width x depth
Weight
Approximately 0.2 kg (0.5 lb)
Slot width
One ControlLogix chassis slot
Enclosure type
None, open-style equipment
Operating temperature
0 to 60 degrees C
Storage temperature
-40 to +85 degrees C
Relative humidity
5 to 95 percent, noncondensing
Vibration
2 g at 10-500 Hz
Shock
30 g operating; 50 g nonoperating
Certifications
cULus, CE, RCM, KC, ATEX, IECEx, UKEx, FM, UKCA, Morocco and CCC when marked
Lifecycle
Active
Official sources
Rockwell Automation product page; publication 1756-TD002T-EN-E pages 49-52; official drawing ABIOM091; Rockwell ControlLogix 1756 system reference

Inquiry

Features

Open-wire diagnostics
Each input point can be configured for open-wire detection, with a published minimum off-state leakage current of 1.2 mA.
Configurable filtering
Independent input filtering supports selected off-to-on and on-to-off delay settings for industrial signal conditioning.
Diagnostic event timing
Diagnostic time stamps are specified at +/-1 ms, while input time stamps are specified at +/-200 us.
Grouped sinking inputs
Sixteen 12/24 VDC sinking inputs are organized as four groups of four points for ControlLogix field wiring.

Wiring

Field wiring
Use a 1756-TBCH or 1756-TBS6H 36-pin removable terminal block housing; the RTB is ordered separately.
Input groups
Inputs IN-0 through IN-15 are divided into four groups with corresponding group ground connections.
Leakage resistors
Rockwell lists 3.3 kOhm at 10 VDC, 5.6 kOhm at 12 VDC, 15 kOhm at 24 VDC and 20 kOhm at 30 VDC, each 1/4 W and 5 percent.
Backplane
The module draws 150 mA at 5.1 V and 3 mA at 24 V from the ControlLogix backplane.

Installation

01 - Verify the complete catalog number
Match 1756-IB16D on the quotation, module label, packaging and Rockwell Automation product record.
02 - Prepare the chassis
Use a compatible 1756 ControlLogix chassis, confirm available backplane power and reserve one slot.
03 - Select the RTB
Choose 1756-TBCH or 1756-TBS6H for the 36-pin field connection and key the RTB mechanically for the application.
04 - Wire the input groups
Connect the 16 sinking inputs and four group grounds according to the official 1756-IB16D wiring diagram and leakage-resistor guidance.
05 - Apply enclosure protection
Because the module is open-style equipment, install it in an enclosure appropriate for the environmental and hazardous-location requirements.

Environment

Operating temperature
0 to 60 degrees C.
Storage temperature
-40 to +85 degrees C.
Relative humidity
5 to 95 percent, noncondensing.
Mechanical endurance
2 g vibration at 10-500 Hz, 30 g operating shock and 50 g nonoperating shock.
Hazardous locations
Published approvals include Class I, Division 2 and Zone 2 ratings when the product is marked and installed under the applicable instructions.
Protection
Open-style equipment with reverse-polarity protection; provide the required industrial enclosure.

FAQ

Q1. How can the exact quoted 1756-IB16D be verified?
Match the full 1756-IB16D catalog number on the quotation, module label and packaging. Confirm 16 diagnostic sinking inputs, the 10-30 VDC range, four groups, open-wire diagnostics and the 36-pin RTB interface.
Q2. How can New, Used or Refurbished condition be distinguished?
Request date-marked photos of the full label, serial and series markings, front diagnostic indicators, side housing, backplane connector and RTB area. Check for connector wear, repaired plastic, altered labels or residue from previous panel installation.
Q3. How should supplier legality and reliability be checked?
Verify the supplier legal entity, registered address, invoice details, payment beneficiary and traceable sales contact. The written offer must identify Allen-Bradley, 1756-IB16D, condition, quantity and included RTB or accessories.
Q4. Which specifications must engineering confirm before purchase?
Confirm 10-30 VDC sinking inputs, four points per group, input current limits, selected filter times, open-wire leakage requirements, 1756-TBCH or 1756-TBS6H wiring, backplane power, chassis compatibility and hazardous-location marking.
Q5. What physical evidence should be requested before payment?
Ask for one date-marked photo set showing the complete 1756-IB16D label, serial and series markings, 16-point diagnostic faceplate, backplane edge connector, RTB connector, housing condition, seals and packaging.
Q6. Can 1756-IB16, 1756-IB16I or 1756-IB16DK replace 1756-IB16D?
Not automatically. 1756-IB16 lacks the same diagnostic configuration, 1756-IB16I uses individually isolated inputs, and 1756-IB16DK is the conformal-coated variant. Confirm wiring, diagnostics, input grouping, coating, firmware profile and approvals before substitution.

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