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Technical specifications for 4351B
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Manufacturer:Invensys
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Product Category:DCS Systems
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Spare Part Number:4351B
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Tariff Code:8537101190
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Counliy of origin:USA
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Module type:Tricon Communication Module (TCM)
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System compatibility:Tricon v10.3 and later
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Serial ports:4 RS-232/RS-485, DB-9
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Network ports:2 RJ-45 copper Ethernet, 10/100 Mbps
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Port isolation:500 VDC
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Serial speed:Up to 115.2 Kbps per port
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Aggregate serial data rate:460.8 Kbps for four ports
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Protocols:TriStation; Modbus; TCP/IP; ICMP; SNTP; TSAA
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Status indicators:PASS; FAULT; ACTIVE; FIRM; LINK; TX; RX
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Hot-spare operation:Not supported; online replacement supported
Information
Overview
Manuals
Common Applications
Product Precautions
Triconex 4351B is a Tricon Communication Module for Tricon v10.3 and later systems. The copper TCM execution provides four RS-232/RS-485 serial ports, two RJ-45 Ethernet ports and the documented TriStation, Modbus and time-synchronization interfaces.
- Connects a Tricon controller with TriStation, Modbus devices and external hosts
- Provides four serial interfaces and two copper Ethernet network ports
- Carries protocol and time-synchronization traffic through the approved TCM interfaces
- Supports online replacement while preserving the engineered logical-slot arrangement
4351B installs with Tricon v10.3 or later controller, Two approved logical TCM slots, TriStation engineering station, Modbus masters/slaves and copper Ethernet network in an engineered Tricon v10.3 and later communication configuration.
The commissioning workflow covers installed-hardware matching, controlled start-up and functional verification for this tricon communication module (tcm).
Important Notice: Confirm the complete 4351B marking, installed-system configuration, field connections and controlled functional test before commissioning or replacement.
Apter Power Triconex 4351B Manuals and Guides
Apter Power Triconex 4351B Product Technical Reference PDFApter Power Triconex 4351B Installation and Commissioning Workbook PDF
The first document is an Apter Power model-specific technical reference. The second supports model-specific installation, configuration and engineering verification.
TriStation engineering communicationsConnects a Tricon controller with TriStation, Modbus devices and external hosts
Modbus master and slave integrationProvides four serial interfaces and two copper Ethernet network ports
Peer-to-peer controller data exchangeCarries protocol and time-synchronization traffic through the approved TCM interfaces
Network time synchronization and diagnosticsSupports online replacement while preserving the engineered logical-slot arrangement
Read the applicable Triconex installation instructions before work. Verify 4351B and the installed Tricon v10.3 and later communication configuration.
1Verify the 4351B marking and Tricon v10.3-or-later compatibility before removal.
2Record the logical slot, serial-port mode, IP settings and connected network identity.
3Isolate or place the affected communication paths in the approved maintenance state.
4Preserve DB-9 serial wiring, RJ-45 network segregation and the documented grounding arrangement.
5Do not mix incompatible TCM models in one logical slot or exceed the system TCM allocation.
6Use ESD controls and inspect the keyed module, backplane and network connectors.
7Restore TriStation, Modbus and time-synchronization settings under controlled conditions.
8Review PASS/FAULT/ACTIVE/FIRM and LINK/TX/RX indications, then retain the communication test record.
Technical notes
Confirm the Tricon release, logical-slot model compatibility, port assignments and network addressing before replacement; verify PASS/FAULT/ACTIVE/FIRM plus LINK/TX/RX activity after commissioning.
FAQ View All FAQ
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Which Tricon system versions support Triconex 4351B?The Triconex lifecycle report identifies 4351B as a Tricon TCM module for version 10.3 and later systems; verify the installed controller release before replacement.
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What communication interfaces are provided by Triconex 4351B?The official TCM documentation describes four RS-232/RS-485 serial ports with DB-9 connectors and two RJ-45 copper Ethernet network ports for the 4351B copper execution.
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Which protocols can be used through Triconex 4351B?The TCM documentation lists TriStation, Modbus, TCP/IP, ICMP, SNTP, TSAA, Trimble GPS, peer-to-peer communication, Triconex time synchronization and Jet Direct network printing.
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How are serial ports 1 and 4 assigned on Triconex 4351B?Serial port 1 supports Modbus or Trimble GPS, while serial port 4 supports Modbus or TriStation; preserve the approved port assignment during commissioning.
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What isolation and speed checks apply to Triconex 4351B?The TCM specification lists 500 VDC port isolation, serial speeds up to 115.2 Kbps per port and an aggregate four-port serial data rate of 460.8 Kbps.
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How many TCMs can a Tricon system support?The TCM documentation states that one Tricon system supports a maximum of four TCMs in two logical slots, with different TCM models not mixed within one logical slot.
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Is hot-spare operation available for Triconex 4351B?Hot-spare operation is not available for the TCM, although a faulty TCM can be replaced while the controller is online under the approved maintenance procedure.
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Which indicators should be checked after installing Triconex 4351B?Check PASS, FAULT, ACTIVE and FIRM status together with LINK, TX and RX indications for the network and serial interfaces, then verify the expected TriStation or Modbus traffic.
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