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Model
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1746-NI16I
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Official description
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SLC 16 Point Analog Input Module
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Input type
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16 backplane-isolated current-input channels
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Selectable ranges
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+/-20 mA, 4 to 20 mA, 0 to 1 mA, or 0 to 20 mA
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Selection note
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Discontinued product. Verify lifecycle, chassis compatibility, terminal block, condition and current nameplate before quotation.
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Rockwell Automation identifies 1746-NI16I as an SLC 500 sixteen-point analog input module for current signals. The official product page lists the lifecycle status as discontinued.
Brand |
Allen-Bradley / Rockwell Automation |
Series |
SLC 500 |
Complete model |
1746-NI16I |
Official description |
SLC 16 Point Analog Input Module |
Lifecycle |
Discontinued as of September 30, 2024 |
Core selling point |
Sixteen selectable current-input channels in one SLC 500 module |
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Current acquisition
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Accepts industrial current signals across sixteen backplane-isolated channels.
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Selectable ranges
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+/-20 mA, 4 to 20 mA, 0 to 1 mA and 0 to 20 mA are selectable.
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Data handling
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Supports engineering units, scaled-for-PID and proportional-count data formats.
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Signal filtering
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Programmable low-pass digital filters support 6, 10, 20, 40, 60, 80, 100 and 250 Hz.
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Diagnostics
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Open-circuit detection is specified at less than five seconds.
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Typical application
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SLC 500 process measurement and monitoring where the chassis, power budget and transmitter loops are verified.
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Channels
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16, backplane isolated
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Input impedance
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249 ohm
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Input resolution
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640 nA
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Display resolution
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1 microampere
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Calibrated accuracy at 25 C
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Better than 0.15% of range
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Module error over 0 to 60 C
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+/-0.3% for current input types
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A/D conversion
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Sigma-delta
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Backplane consumption
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125 mA at 5 Vdc and 75 mA at 24 Vdc; 2.425 W maximum
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Chassis position
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Any SLC 500 I/O module slot except slot 0
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Terminal block
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Removable 1746-RT25G
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Status indication
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Five green indicators: one per group of four channels and one module-status indicator
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Recommended cable
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Belden 8761 or equivalent
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Wire capacity
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Two 14 AWG wires maximum per terminal
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Interposing options
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1492-AIFM8-3 or 1492-AIFM16-F-3; cable selection subject to verification
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Operating temperature
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0 to 60 C
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Storage temperature
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-40 to 85 C
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Relative humidity
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5% to 95%, non-condensing
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Isolation
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500 Vac for 1 second
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Hazardous location
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Class I, Division 2, Groups A, B, C and D, or non-hazardous locations only
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Agency information
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UL listed, C-UL approved and CE compliant as stated in publication 1746-IN001B-US-P; verify marks on the offered unit
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Chassis
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Confirm the exact SLC 500 fixed or modular chassis and do not install in slot 0.
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Power budget
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Add 125 mA at 5 Vdc and 75 mA at 24 Vdc to the chassis load calculation.
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Noise control
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Keep the module and shielded twisted-pair wiring away from relays, hard contacts, drives and high-voltage wiring.
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Shielding
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Connect the shield drain to earth or chassis ground as directed in the official installation instructions.
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Loop check
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Verify transmitter supply, polarity and a maximum 249-ohm loop impedance for common-mode requirements.
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Commissioning
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Verify channel range, data format, filter, scaling and fault handling before service.
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Catalog number
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Confirm 1746-NI16I on the nameplate; do not substitute 1746-NI16V.
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Lifecycle
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Discontinued status and any engineering replacement require confirmation.
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Condition and photos
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Request current front, side, terminal and nameplate photographs.
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Included parts
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Confirm 1746-RT25G terminal block, connectors, packaging and documentation.
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Compatibility
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Verify chassis, processor, power supply, slot, application program and transmitter loops.
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Testing
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Power-up, channel simulation, calibration evidence and test-report scope are subject to agreement.
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Official reference
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Rockwell Automation publication 1746-IN001B-US-P and the official 1746-NI16I product page.
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Current stock
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Confirm before quotation
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Condition
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New, used or refurbished status is subject to verification
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Current photos
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Available on request, including product and nameplate views
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Warranty
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Quotation-specific; confirm before order
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Dispatch time
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Subject to stock, inspection, packing and destination verification
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Testing
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Status and report scope subject to verification
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Payment methods
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Available on request and confirmed on the proforma invoice
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Quote response
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Subject to requirement and configuration verification
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Is this real stock?
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Confirm before quotation. Current inventory evidence is available on request.
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Is the offered unit new, used or refurbished?
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Subject to verification for the specific offered unit and stated in the quotation.
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Can current product and nameplate photos be provided?
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Available on request before order confirmation.
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What warranty is included?
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Quotation-specific. Confirm the duration and scope before order.
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What is the dispatch time?
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Subject to stock verification, inspection, packing and destination requirements.
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Has the module been tested?
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Test status and the agreed test scope are subject to verification.
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Which payment methods are supported?
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Available on request and confirmed on the proforma invoice.
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How quickly will a quotation be issued?
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Response time is subject to requirement and configuration verification.
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How can the company and transaction be verified?
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Request company-registration information, a formal proforma invoice and beneficiary details, then verify them through normal procurement and banking controls before payment.
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