EMERSON 1C31197G05 Detailed Product Description (Ovation Valve Positioner Personality Module - Standard Performance Version)

I. Product Basic Information

1C31197G05 is an Ovation DCS system's standard performance valve positioner personality module from Emerson (formerly Westinghouse Electric), belonging to the mainstream standard version of the 1C31197G series. It balances accuracy, response, and cost, and is suitable for conventional key valve position control scenarios in power plants, chemical industries, oil and gas, etc., and is compatible with mainstream intelligent / standard valve positioners. 

Model: 1C31197G05

Brand: Emerson (formerly Westinghouse)

Series: Ovation DCS 1C Series I/O Module

Core Positioning: Standard Performance - Universal - Basic HART Valve Closed-loop Control Module

Function Type: Analog I/O, LVDT/RVDT Signal Conditioning, 32-bit Hardware PID, Single Serial Port, HART 6.0 Basic Edition, Four-level Diagnosis, General Environmental Hardening

Installation Method: Ovation Standard I/O Rack Slot Installation, Supports Hot Swap, Redundant Pairing

Origin: United States

Warranty Period: 12 Months (Original Factory)

Protection Level: IP20 (Body)

Core Value: ±0.1% Accuracy, ≤150ms Response, HART 6.0 Communication, Stable and Reliable, High Cost Performance, Suitable for Most Industrial Conventional Conditions, Is a General Replacement for G02.

II. Core Functional Characteristics

1. Precise Closed-loop Control, Stable and Reliable in Conventional Conditions

Receive Ovation Controller's 4-20mA DC instructions, convert them into actuator drive signals; simultaneously collect LVDT (17V AC/1kHz) or 4-20mA valve position feedback, forming hardware-level high-speed closed-loop PID control, with a positioning accuracy of **±0.1% of Full Scale** and a resolution of 0.005% FS, repeatability of ±0.08% FS, effectively eliminating valve drift, suitable for 4–20mm stroke regulating valves.

Support single/double-acting pneumatic actuators, electric actuators full compatibility, native compatibility with Fisher, Samson, etc. mainstream standard/ intelligent positioners; load impedance 0–600Ω, can directly drive 4-20mA input type positioners, built-in non-linear compensation, small signal regulation without dead zone.

2. HART 6.0 Basic Communication, Digital Operation and Maintenance Introduction

Integrate HART 6.0 basic protocol stack (compatible with HART 5/6), support single-point communication, parameter reading and writing, basic diagnosis (valve position, temperature, alarm, LVDT status), can read basic operation data of the actuator, supporting conventional digital operation and remote debugging.

Single Serial Port (RS-485) Independent Communication, Modbus RTU baud rate 9600–57600bps configurable, can simultaneously connect to the upper computer, handheld terminal, parallel configuration/ diagnosis/data acquisition, no interference.

3. 32-bit Hardware PID, Fast Response to Dynamic Conditions

Integrate 32-bit high-frequency 150MHz high-speed hardware PID controller, supports adaptive tuning, feedforward control, friction compensation, stroke linearization, can operate independently in closed-loop regulation without DCS, response time **≤150ms**, suitable for boiler feedwater valve, chemical reflux valve, ventilation damper and other conventional dynamic regulation scenarios, with small control lag and stable process parameters.

Built-in Valve Calibration Tools: Automatic stroke calibration, dead zone learning, limit setting, action speed adjustment, support local/remote one-click calibration, shortens on-site debugging cycle.

4. General Environmental Hardening, Strong Anti-interference Capability

Operating Temperature **-20℃~+60℃**, Storage Temperature - 40℃~+85℃; Anti-vibration 5g, Anti-shock 30g, Relative Humidity 5%–95% RH (no condensation), suitable for workshop, cabinet room and other conventional industrial environments. Triple electrical isolation (channel - system - power supply), with isolation withstand voltage of 1500V DC, ESD protection of ±20kV, surge protection of ±4kV, resistance to strong electromagnetic interference, ground loop current, suitable for most industrial site interference environments.

5. Hot-swappable + redundant compatibility, ensuring continuous production

Support online hot-swapping, no need to stop the machine to replace the module, automatically recognized upon insertion, parameters synchronized, output status customizable (keep / reset / preset), without affecting system operation.

Redundant pairing support: dual-module redundant switching time ≤ 10ms, non-disruptive control, suitable for critical control loops; seamless compatibility with Ovation 3.5 and above versions I/O rack and main unit (1C31179G01/G02), can be mixed with 1C31197G01/G02/G03/G04, flexible adaptation to multi-precision level valve control requirements.

6. Four-level full-link diagnosis, clear faults

Four-level full-link diagnosis (module level + channel level + LVDT probe level + valve status level), real-time monitoring: power supply abnormality, communication interruption, LVDT break / short circuit, signal over-range, valve jamming, etc., precisely locate to specific components.

High-brightness LED indicator lights on the panel (power, communication, fault, channel), intuitive status; fault codes + detailed description uploaded to Ovation system, supports remote diagnosis, trend recording, early warning of aging failure, reducing unplanned downtime risk.

III. Detailed Technical Specifications

Signal Interface

Control command input: 4-20mA DC (standard)

Valve position feedback input: LVDT (17V AC peak-to-peak, 1kHz) or 4-20mA DC

Output signal: 4-20mA DC (current source type, drives positioner)

Control loop: single-channel independent closed-loop PID (32-bit / 150MHz hardware)

Positioning accuracy: ±0.1% of full scale

Resolution: 0.005% FS

Repeatability: ±0.08% FS

Response time: ≤ 150ms

Load impedance: 0–600Ω

Isolation withstand voltage: 1500V DC (triple isolation)

Communication Specifications

Backplane communication: Ovation dedicated backplane bus

Serial port communication: RS-485 single serial port, Modbus RTU

Baud rate: 9600–57600bps (configurable)

HART communication: HART 6.0 basic version (compatible with 5/6)

Data refresh rate: fastest 150ms

Electrical Specifications

Power supply voltage: 24V DC (±10%, backplane power supply)

Power consumption: ≤ 6W

Output current: maximum 1.5A (single channel, overcurrent / short circuit protection)

Environmental and physical specifications

Operating temperature: -20℃ ~ +60℃

Storage temperature: -40℃ ~ +85℃

Relative humidity: 5%–95% RH (no condensation)

Anti-vibration: 5g (IEC 60068-2-6)

Anti-shock: 30g

Size: 124mm (width) × 126mm (height) × 22mm (depth)

Weight: approximately 0.3kg

Protection level: IP20

Certification: CE, UL, RoHS

IV. Typical Application Scenarios

Thermal power conventional key circuits

Boiler system: steam temperature regulating valve, air / flue gas damper control, ±0.1% accuracy stable steam parameters, ≤ 150ms response suitable for load fluctuations.

Auxiliary system: condensate valve, circulating water valve control, stable and reliable, meeting conventional regulation requirements.

Chemical non-explosion zone General production equipment: Controlled by feed valve, reflux valve, and coolant regulating valve. Supports remote maintenance via HART 6.0, reducing on-site operation and maintenance costs.

Water treatment system: Controlled by reverse osmosis concentrated water valve, dosing valve, and backwashing valve. Suitable for humid environments, with significant cost advantages.

Oil and gas non-explosion-proof areas

Oil and gas processing equipment: Controlled by storage tank inlet and outlet valves, ordinary pipeline regulating valves, and dehydration tower auxiliary valves. Suitable for outdoor cabinets in normal temperature environments, ensuring stable operation.

Other industrial scenarios

Metallurgical industry: Controlled by cooling water valve and dust removal air valve, suitable for high dust and strong interference sites.

Light industry / pharmaceuticals: Controlled by process fluid regulating valves and clean gas control valves, meeting requirements for clean environments and stable regulation. Table

Model Accuracy Response Time HART Version Communication Diagnostic Level Explosion-proof Operating Temperature Applicable Scenarios

1C31197G05 ±0.10%FS ≤150ms 6.0 (Basic) Single Serial Port Level 4 No -20~+60℃ General critical conditions, general substitutes

1C31197G01 ±0.15%FS ≤200ms No Single Serial Port Level 3 No -40~+85℃ Ordinary conditions, standard transmitters

1C31197G02 ±0.10%FS ≤150ms 7.0 (Basic) Dual Serial Ports Level 5 No -40~+85℃ Critical conditions, intelligent transmitters

1C31197G03 ±0.08%FS ≤120ms 7.5 (Full Protocol) Dual Serial Ports Level 6 Ex ib IIC T4 -40~+85℃ Explosion-proof / Nuclear power / Ultra-supercritical high-end conditions

1C31197G04 ±0.12%FS ≤180ms 6.0 (Basic) Single Serial Port Level 4 No -40~+85℃ Non-explosion-proof, wide temperature range, cost-performance priority

Six, Ordering and Supplementary Information

Ordering Model: 1C31197G05

Supplementary Rack: Ovation Standard I/O Rack (1C31129G02)

Supplementary Main Unit: 1C31179G01 (Standard Type), 1C31179G02 (Redundant Type, Recommended)

Supplementary Equipment: Standard / Intelligent Transmitter (HART 6.0 Compatible), LVDT Sensor

Supplementary Accessories: Shielded Twisted Pair, 24V DC Industrial Power Supply, Signal Surge Protector, Redundant Terminal Block