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TRICONEX 3351S2 32-point Analog Input Module

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TRICONEX / TRI-GP

3351S2

Analog Input Module

32-channel architecture

Commoned analog inputs

POINTS

commoned

INPUT

4–20 mA

nominal DC

RANGE

2–22 mA

operational

12-bit resolution

16 Hz input bandwidth (3 dB)

SCAN PERFORMANCE < 1 ms for all 32 points

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Product Details

TRICONEX / TRI-GP / ANALOG INPUT

3351S2

The Triconex 3351S2 is a 32-point analog input module for the Triconex Tri-GP platform. Its architecture is designed for commoned 4–20 mA analog signals, with redundant processing and built-in diagnostic capability suited to continuous industrial control applications.

MODULE PROFILE

Type	Analog Input
Points	32
Signal	4–20 mA DC

01 / PRODUCT OVERVIEW

Built Around Stable Analog Acquisition

32-Point Analog Architecture

The 3351S2 provides 32 commoned analog input points for nominal 4–20 mA DC signals. The module is part of the Triconex Tri-GP family and is designed to process field analog values while providing internal diagnostics.

◆ Signal focus: 4–20 mA DC analog acquisition with an operational current range of 2–22 mA DC.

◈ 12-Bit Resolution Analog conversion is specified at 12-bit resolution.	◉ 16 Hz Bandwidth The specified input bandwidth is 16 Hz at the 3 dB point.
◇ Diagnostic Capability Force-to-value diagnostics are specified for the module.	▣ Fast Scan All 32 points have a specified scan time of less than 1 ms.

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02 / VERIFIED TECHNICAL DATA

3351S2 Specification Profile

Specification	Value
Module type	Analog Input
Points	32, commoned
Nominal input current	4–20 mA DC
Operational current range	2–22 mA DC
Absolute maximum field voltage	33 V DC
Absolute maximum input current	50 mA DC

Specification	Value
Input bandwidth	16 Hz, 3 dB
Source impedance	180 Ω
Input impedance with baseplate	250 Ω
Resolution	12 bits
Absolute error	0.15% of full scale at 20 mA
Diagnostic	Force-to-value diagnostic
Scan time	<1 ms for all 32 points

✓	Isolation specifications: functional-to-protective-earth isolation is specified at a minimum of 500 V DC, while functional-to-functional-earth logic isolation is specified at a minimum of 800 V DC.

TRI-GP SERIES POSITION

Where 3351S2 Fits

◌

3351S2

Analog input module with 32 commoned points for 4–20 mA DC operation.

2351S2 Baseplate Typical baseplate pairing for the 3351S2 analog input module.	2352S2 Configuration Associated analog-input baseplate configuration for RTD/TC/4–20 mA applications.
2354S2 HART-oriented baseplate configuration using the same 3351S2 analog input module.	Tri-GP Architecture The 3351S2 belongs to the Tri-GP general-purpose I/O family.

APPLICATION FIT

When 3351S2 Becomes the Relevant Choice

⌁

Existing 4–20 mA Loops

Suitable where the existing Tri-GP configuration requires 32 analog points using the specified current-input range.

◇

Module Replacement

A practical replacement candidate when the existing installation specifically calls for the 3351S2 module and compatible baseplate arrangement.

◈

High-Density AI

The 32-point format can be relevant where cabinet I/O density and compatibility with the Tri-GP architecture are purchasing priorities.

✦

DIRECT SALES CONTACT

Need a 3351S2 Quote?

For a quotation, please provide Part Number, Quantity, Destination, Required Date, and Machine/System.

EMAIL sales@amikon.cn

PHONE / WHATSAPP 86-18020776792

SALES MANAGER Miya Zheng

PURCHASING QUESTIONS

3351S2 Buyer FAQ

Q1 · Is TRICONEX 3351S2 suitable for a 32-point 4–20 mA replacement?

Yes, when the existing application requires the 3351S2 specification of 32 commoned analog points with a nominal 4–20 mA DC input. The existing baseplate and system configuration should be checked before ordering.

Q2 · What should be checked before replacing TRICONEX 3351S2?

The key purchasing checks are the exact part number, the existing Tri-GP configuration, the installed baseplate arrangement, the required 4–20 mA signal type, and the number of active analog points. These checks reduce the risk of ordering a visually similar but electrically different module.

Q3 · Can TRICONEX 3351S2 be ordered separately from its baseplate?

Yes. The Tri-GP product structure distinguishes the 3351S2 analog input module from associated baseplate kits. The correct baseplate depends on the intended configuration, so the installed baseplate part number should be confirmed when sourcing a replacement module.

Q4 · Does TRICONEX 3351S2 provide diagnostic capability for maintenance decisions?

The specified module includes force-to-value diagnostics (FVD). This is useful when maintenance teams need diagnostic functionality as part of the existing Tri-GP installation rather than relying only on external signal checks.

Q5 · What makes TRICONEX 3351S2 a sensible same-family replacement candidate?

Its value as a replacement candidate comes from matching the established Tri-GP analog-input architecture: 32 commoned points, 4–20 mA nominal input, 12-bit resolution, 16 Hz bandwidth, and the specified diagnostic functions. Compatibility must still be confirmed against the actual installed configuration.

Purchasing note: For an exact replacement, send the existing part number and machine/system details together with the required quantity.

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Delivery

3–5 Days

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Warranty

12 Months

▣

Condition

Brand New

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Delivery Way

E-packing / FedEx / EMS / TNT / DHL / UPS

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Payment

T/T

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After-Sales

Return / Replacement

Return arrangement: Please contact us within 7 days after receiving the items if there is any issue. Returned items should remain in their original condition and include the specific reason for return. After the returned items are received, we can arrange a return or replacement according to the case. The buyer is responsible for shipping costs incurred for the return.

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