Description
Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | ICS Triplex / Rockwell Automation |
| System | Trusted Safety System |
| Model | T8800C |
| Assembly | PD8800 |
| PCB Number | PCB130100 |
| Product Type | Analog Input Field Termination Assembly |
| Analog Channels | 40 |
| Signal Type | Analog input |
| System Architecture | Trusted TMR safety architecture |
| Primary Function | Field termination / signal interface |
| Application | Safety instrumented systems |
| Field Interface | 40-channel analog field wiring |
| Controller Interface | Trusted I/O subsystem |
| Installation | Trusted system cabinet / I/O assembly |
| Exact Input Range | Application/configuration dependent — verify system documentation |
| Loop Power | Verify installed termination arrangement |
| Isolation | Verify OEM hardware documentation |
| Operating Temperature | Verify exact hardware revision |
| Certification | Verify exact product revision and system certification |
Important specification warning: Publicly indexed sources are inconsistent about this part number. Some identify PCB130100 as the Trusted 40-channel analog input FTA, while others incorrectly label it as a digital-input module and provide unsupported voltage/current figures.
For engineering purposes, I would use T8800C / PD8800 / PCB130100 = 40-channel analog input FTA as the working identification, but I would not publish a nominal input voltage, current-per-channel, isolation rating, or operating temperature as fact without the original ICS Triplex documentation for the exact revision.
Product Introduction
ICS Triplex T8800C PD8800 PCB130100
The ICS Triplex T8800C PD8800 PCB130100 is associated with the Trusted safety system’s 40-channel analog input field termination architecture. Its job is to provide the physical field-wiring interface between analog instrumentation and the Trusted I/O subsystem.
This is not a standalone analog controller. It belongs to a larger safety-system architecture. That distinction matters during replacement because channel configuration, termination hardware, I/O module type, field wiring, and the associated Trusted controller configuration all have to agree.
T8800C
Application Scenarios & Field Pitfalls
Engineering Pain Point
A safety system can show an apparently simple analog-input problem while the actual fault sits at the termination assembly. A loose field conductor, incorrect termination position, damaged connector, or wrong FTA configuration can make a healthy I/O processor appear defective. With a 40-channel assembly, one misplaced wire can also create a dangerous maintenance error if channel identification is not carefully controlled.
Typical Applications
- Oil & Gas — Pressure, temperature, flow, and level transmitters connected to emergency shutdown and process safety systems.
- Petrochemical Plants — Analog process measurements feeding safety interlocks and shutdown logic.
- Power Generation — Critical turbine, boiler, and auxiliary-process measurements requiring independent safety control.
- Chemical Processing — Analog measurements used by safety instrumented functions and protective shutdown sequences.
Technical Pitfalls to Avoid
- Do not confuse the FTA with the I/O processor.
The PD8800 PCB130100 is a field termination/interface assembly, not something that should be treated as the complete Trusted analog-input processing module. - Verify the exact part number on the PCB.
Use all three identifiers—T8800C, PD8800, and —when comparing replacement hardware. Public listings use these identifiers inconsistently. - Do not trust generic voltage specifications.
Some online records claim 24 VDC operation and specific per-channel current values, while other records identify the assembly as a 40-channel analog FTA. Those figures are not sufficiently reliable for a safety-system design. - Document every field wire before removal.
Forty channels means a large number of termination points. Photographing the assembly is useful, but photographs should supplement—not replace—the approved wiring drawings. - Verify channel mapping.
The physical channel number must correspond to the Trusted configuration. A wire installed on the wrong terminal can produce a perfectly believable process value on the wrong safety function. - Check the associated I/O module.
If the FTA is replaced because of an analog-input fault, verify the corresponding Trusted I/O module and field wiring. Replacing only the termination assembly may not resolve an electronic acquisition problem. - Check signal type and transmitter arrangement.
Current-loop transmitters, voltage transmitters, and other analog instruments can require different termination arrangements. Do not assume all 40 channels are configured identically. - Treat safety-system modifications differently from ordinary PLC maintenance.
Any change affecting a safety instrumented function should follow the site’s management-of-change, proof-test, and commissioning procedures. - Verify redundancy and diagnostics after replacement.
The Trusted system’s TMR architecture provides extensive fault tolerance, but the FTA itself should not be assumed to provide the same level of redundancy as the complete safety system. - Perform a complete loop check.
After replacement, verify the physical channel, signal scaling, diagnostics, controller tag, alarm/trip logic, and final safety action. A successful module self-test is not a substitute for an end-to-end loop test.
Related Products
- ICS Triplex T8800 — Trusted system analog input FTA family. The T8800 designation is closely associated with the 40-channel analog input termination architecture and provides the relevant family reference for .
- ICS Triplex T8830 — Trusted 40-channel analog input FTA designation found in the same product family. It should not automatically be substituted for T8800C/; verify the hardware revision and system configuration.
- ICS Triplex T8850 — Trusted expander interface module. It serves a different system function and is used for Trusted system expansion rather than directly replacing an analog-input FTA.
- ICS Triplex TCM 4355X — Trusted/Tricon communication module family hardware. It provides communication functionality and is not an analog-input termination replacement.
- Triconex 3008 — Main processor hardware associated with Tricon safety systems. It belongs to a different Tricon architecture and should not be treated as a replacement for a Trusted assembly.
- Triconex 4351A — Tricon communication module. It is complementary communication hardware rather than a field termination assembly.
- Triconex 2071H 7400313-100 — Data acquisition hardware from the Tricon family. It performs a different function and should not be substituted for without documented system compatibility.
- Triconex 3503E / 3503EC1 — Digital input modules for Tricon systems. These are discrete-input devices and are fundamentally different from the 40-channel analog-input FTA function associated with .
- Trusted Analog Input I/O Module — The electronic acquisition module associated with the field termination assembly. The FTA provides field termination; the actual signal-processing architecture depends on the corresponding Trusted I/O hardware.
- Trusted TMR Controller Architecture — The broader Trusted safety platform in which the / assembly operates. The FTA should be evaluated as one component of the complete safety I/O chain, not as an independent PLC module.
Procurement note: The safest identification is ICS Triplex / / , 40-channel analog input FTA.Public listings contain contradictory specifications, so I would not use the commonly quoted 24 VDC, channel-current, temperature, or Ethernet figures as engineering data without the exact OEM documentation.
For a live Trusted SIS replacement, verify the PCB number, hardware revision, associated analog I/O module, termination arrangement, channel assignment, field wiring drawings, system configuration, and certification status before installation.
