Invensys 4351B
Invensys 4351B
Invensys 4351B
Invensys 4351B
Invensys 4351B
Invensys 4351B
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4351B

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Triconex 4351B is a copper-Ethernet Tricon Communication Module with four serial ports for Tricon v10.3 or later systems.
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Technical specifications for 4351B

  • Manufacturer:
    Invensys
  • Part Number:
    4351B
  • Product Family:
    Triconex
  • Product Type:
    Communication Module
  • Stock:
    1
  • Product type:
    Tricon Communication Module (TCM)
  • Tricon system compatibility:
    Version 10.3 or later
  • Serial ports:
    4
  • Serial interfaces:
    RS-232 / RS-485
  • Serial connectors:
    DB-9
  • Serial rate:
    Up to 115.2 Kbps per port
  • Aggregate serial rate:
    460.8 Kbps across four ports
  • Network ports:
    2
  • Network medium:
    Copper Ethernet
  • Network connectors:
    RJ-45
  • Network speed:
    10/100BaseT
  • Port isolation:
    500 VDC
  • TriStation mapping:
    NET 1, NET 2 and serial port 4 as documented
  • Modbus serial roles:
    Master RTU or slave ASCII/RTU on supported serial ports
  • Modbus TCP role:
    Master or slave on NET 1 and NET 2
  • TSAA multicast:
    UDP/IP on NET 1 and NET 2
  • Time synchronization:
    SNTP and Triconex synchronization on documented network ports; GPS on serial port 1
  • Maximum per Tricon system:
    4 TCMs
  • Slot placement:
    Two logical slots in chassis 1 or chassis 2 only
  • Replacement behavior:
    No hot spare; faulty TCM may be replaced while the controller is online
  • Weight:
    4.938 lbs (2.24 kg)
  • Estimated shipping dimensions:
    2.2 x 40.5 x 40 cm
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Use Cases Control Efficiency

Features:

  • Provides four serial ports that can be configured for RS-232 or RS-485 operation.
  • Uses two copper 10/100BaseT Ethernet ports with RJ-45 connectors.
  • Supports the documented Tricon communication services from system version 10.3 onward.
The current ordering configuration is the 4351B copper-Ethernet Tricon Communication Module with four DB-9 serial ports and two RJ-45 network ports.

It exchanges controller data with engineering workstations, Modbus equipment, peer controllers and supported Ethernet hosts through the port-specific protocol map.

Confirm the Tricon software release, chassis location, logical-slot partner and installed TCM family before commissioning or replacement. Different TCM families cannot be freely mixed.

Availability is subject to Apter Power stock verification and sourcing confirmation.
Verified resources for Triconex 4351B: Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Triconex 4351B Tricon Communication Module Specs

General

  • ManufacturerTRICONEX
  • Model4351B
  • ConditionNew Original ready stock
  • Product FamilyTricon Communication Modules
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Connects TriStation engineering stations through the network ports or the documented serial interface.
  • Integrates Modbus master and slave devices through configurable serial and TCP communication paths.
  • Exchanges peer data with supported Tricon or Trident controllers over the documented Ethernet services.
  • Assigns serial port 1 to either Modbus communication or the supported Trimble GPS interface.
  • Assigns serial port 4 to either Modbus communication or the TriStation interface.
  • Uses TriStation aliases to map controller variable names to the numeric addresses required by Modbus devices.
  • Transfers serial data at up to 115.2 Kbps per port and 460.8 Kbps aggregate across all four serial ports.
  • Supports up to four TCMs in two logical slots located in chassis 1 or chassis 2.
  • Allows replacement of a failed TCM while the controller remains online, although no TCM hot-spare feature is available.
Description
Triconex 4351B is a Tricon Communication Module with four configurable RS-232/RS-485 serial ports and two copper 10/100BaseT Ethernet ports. The network interfaces use RJ-45 connectors, while the serial interfaces use DB-9 connectors.

The module links a Tricon controller with TriStation, Modbus devices, other Tricon or Trident controllers and external Ethernet hosts. Its supported port map includes TSAA multicast, peer-to-peer communication and several time-synchronization services.

The installed controller must use Tricon v10.3 or later, and TCM model-mixing and logical-slot restrictions must be checked before replacement. A failed TCM can be replaced while the controller is online, but the TCM does not provide a hot-spare feature.
Alternative Names
Triconex 4351B Invensys Triconex 4351B Triconex Model 4351B Triconex 4351 B Triconex 4351-B Triconex 4351B TCM Triconex 4351B Communication Module Tricon Communication Module 4351B
Technical notes
Do not mix Triconex 4351B with prohibited TCM families, and verify the v10.3-or-later baseline before replacement.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Which Tricon software baseline is required to integrate 4351B?
The official compatibility table specifies Tricon system version 10.3 or later for this TCM.
What slot-pairing rule matters when installing 4351B beside another TCM?
Do not mix different TCM models in one logical slot except for the explicitly permitted same-family A/B pairing described in the manual.
Which communication task is 4351B intended to perform in a Tricon controller?
It links the controller with engineering, Modbus, peer-controller, network-printing and supported time-synchronization services through assigned ports.
What is the current sourcing basis for 4351B through Apter Power?
Availability, revision, condition and lead time are confirmed against the exact requested module and current inventory before quotation.
Can a 4351B be treated as a universal drop-in substitute for earlier TCM versions?
No blanket substitution should be assumed; verify the controller release, logical-slot pairing, firmware and port configuration before replacement.
What installation evidence should accompany a 4351B documentation or pricing request?
Send the Tricon release, chassis and slot, paired TCM model, firmware details, required protocols and clear module-label photographs.

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