Honeywell STT17H-BS STT17H Smart Temperature Transmitter

Product Details

STT17H-BS STT17H Product Description

The Honeywell STT17H-BS is a HART-enabled smart temperature transmitter engineered for seamless integration into industrial data networks, distributed control systems, and smart factory environments. Designed for demanding process industries including oil & gas, chemical, power generation, and advanced manufacturing, the STT17H-BS delivers precision temperature measurement with full digital communication capability — bridging field-level sensing with plant-wide data infrastructure.

In modern smart factory architectures, temperature data is not merely a process variable — it is a critical node in the plant-wide data chain. The STT17H-BS transmits real-time 4-20mA analog signals simultaneously with HART digital communication, enabling dual-channel data flow to both legacy DCS platforms and modern SCADA systems without infrastructure replacement. This dual-mode capability makes it an ideal retrofit and greenfield solution for facilities transitioning toward IIoT-ready operations.

The STT17H-BS sits at the origin point of the plant data chain — the field sensor layer — and its HART communication capability transforms a simple temperature reading into a rich, multi-variable digital data stream. In a typical smart factory deployment, the STT17H-BS connects to a Honeywell HC900 Hybrid Controller or a Honeywell Experion PKS DCS via HART multiplexers or HART-enabled I/O cards, delivering not only the primary process variable but also secondary variables such as sensor diagnostics, loop current, and device status — all without additional wiring.

For facilities running mixed-protocol environments, the STT17H-BS integrates naturally with HART-to-Modbus gateways or HART-to-PROFIBUS converters, enabling temperature data to flow into Siemens S7-300/S7-400 PLC platforms or ABB AC500 controllers without protocol barriers. This gateway-bridged architecture is particularly valuable in energy and utilities plants where legacy 4-20mA loops must coexist with modern Ethernet-based SCADA backbones.

At the network layer, temperature data from the STT17H-BS is aggregated through industrial Ethernet switches — such as the Moxa EDS-308 or Hirschmann RS20 — before reaching the SCADA server. Operators using Wonderware InTouch, Ignition SCADA, or Honeywell Experion HMI stations can visualize real-time temperature trends, configure alarm thresholds, and trigger automated responses based on STT17H-BS data — all from a centralized control room or remote workstation.

In remote I/O architectures, the STT17H-BS pairs effectively with Pepperl+Fuchs FieldConnex HART Infrastructure or Emerson HART Tri-Loop signal converters, allowing a single HART loop to feed multiple control and monitoring systems simultaneously. This multiplexed data flow supports real-time process control, historian logging, and predictive maintenance analytics — core pillars of Industry 4.0 connectivity.

Edge computing nodes — such as the Advantech WISE-5000 series edge gateway — can subscribe directly to HART data streams from the STT17H-BS, pre-processing temperature analytics locally before forwarding aggregated insights to cloud-based MES or ERP platforms. This edge-to-cloud architecture reduces network latency, minimizes bandwidth consumption, and enables autonomous alarm escalation without dependence on central SCADA availability.

For power generation and process industry applications, the STT17H-BS is frequently deployed alongside Honeywell STT350 multivariable transmitters and Honeywell STG800 pressure transmitters within the same HART segment, creating a unified field device network managed through Honeywell Field Device Manager (FDM) or Emerson AMS Device Manager. This unified asset management approach enables centralized calibration scheduling, device health monitoring, and audit trail documentation — all critical for ISO 9001 and IEC 61511 compliance.

Protocol Fragmentation: Many industrial sites operate a mix of legacy 4-20mA loops and modern digital fieldbus networks. The STT17H-BS resolves this by supporting simultaneous analog and HART digital output, allowing it to serve both legacy DCS inputs and modern HART-enabled I/O cards without signal conversion losses or additional hardware investment.

Data Silos and Visibility Gaps: Temperature data trapped in standalone transmitters cannot contribute to plant-wide analytics. The STT17H-BS's HART communication layer exposes device diagnostics, sensor health, and secondary variables to asset management systems, breaking down data silos and enabling full process transparency across the production line.

Remote Monitoring Limitations: In geographically distributed plants or unmanned substations, physical access for diagnostics is costly and time-consuming. The STT17H-BS supports full remote configuration and diagnostics via HART handheld communicators (e.g., Emerson 475 Field Communicator) or software-based HART masters, enabling technicians to interrogate device status, adjust range settings, and verify calibration without site visits.

Alarm Tracking and Response: Undetected sensor drift or loop failures can cause process upsets and safety incidents. The STT17H-BS continuously monitors its own sensor input, loop current, and internal electronics, generating HART status alerts that propagate to SCADA alarm management systems — enabling proactive maintenance before failures impact production.

System Scalability: As production lines expand, adding new measurement points must not require network redesign. The STT17H-BS's standard HART interface ensures plug-and-play compatibility with any HART-capable I/O infrastructure, making it straightforward to scale temperature monitoring across new process units, reactors, or heat exchangers without engineering rework.

Q1: Does the Honeywell STT17H-BS support simultaneous analog and digital communication? Yes. The STT17H-BS outputs a standard 4-20mA analog signal and HART digital communication simultaneously on the same two-wire loop. This allows it to feed both legacy analog DCS inputs and HART-enabled asset management systems concurrently, with no signal interference or additional wiring required.

Q2: Is the STT17H-BS compatible with third-party SCADA and DCS platforms? Yes. The STT17H-BS is fully compatible with any HART 5/6/7-compliant DCS, SCADA, or PLC system, including Siemens PCS 7, ABB 800xA, Emerson DeltaV, Yokogawa CENTUM VP, and Honeywell Experion PKS. HART Device Description (DD) files are available for seamless integration into major asset management platforms.

Q3: What remote diagnostic capabilities does the STT17H-BS provide? The STT17H-BS continuously self-monitors sensor input integrity, loop current accuracy, and internal electronics health. Diagnostic status is transmitted via HART communication to connected asset management systems, enabling remote fault detection, predictive maintenance scheduling, and calibration verification — all without physical access to the field device.

Q4: What warranty and pre-shipment testing does NANKMOS provide for the STT17H-BS? All Honeywell STT17H-BS units supplied by NANKMOS are covered by a 12-month warranty from the date of shipment. Each unit undergoes full pre-shipment functional testing and calibration verification before dispatch, ensuring that the device arrives ready for immediate installation and commissioning. In-stock units are available for prompt global shipment.