Introduction to Foxboro's "PO Series" Product Description

The "PO series" products of companies such as Schneider and Foxboro are broken down from an industrial logic perspective as follows:

1、 Family positioning: Industrial 'sensory/executive unit'

The PO series is highly likely to be field equipment (sensors/actuators) or supporting modules, serving as the "tentacles" of industrial control systems (such as DCS, PLC), responsible for:

Perception layer: Collecting physical signals such as temperature, pressure, and flow rate (such as PO150HQ, which may be a high-precision pressure sensor);

Execution layer: Receive control instructions, drive valves, motors, etc. (such as PO170WY, which may be an electric regulating valve);

Adaptation layer: Perform signal conversion/protocol adaptation (such as PO176RV, which may be a communication module for converting HART to Modbus).

2、 Model rule: The suffix hides the "function password"

The suffix letters/numbers of the PO model correspond to the signal type, accuracy, and adaptation scenario:

Speculation on possible application scenarios of core features of model format

PO150HQ HQ HQ=High Quality laboratory/measuring equipment (such as calibration grade pressure sensors)

PO151HD HD=High Durability Mine/Port (Displacement Sensor for Strong Vibration Environments)

PO151JS JS=Junction Station (wiring module) Factory wiring cabinet (sensor signal aggregation and conversion)

PO152XL XL=Extra Large Water Conservancy Engineering (Large Pipe Flow Sensor)

PO170NH NH=No Housing integrated equipment (such as PLC internal signal conversion module)

PO170WY WY=Valve (Valve actuator) Petrochemical pipeline (Electric control valve, controlling flow)

PO176RU RU=Redundant Unit Nuclear Power (Safety Class Valve Dual actuator Redundancy)

PO176RV RV=Reverse Voltage (anti reverse module) Outdoor equipment (sensor surge/reverse protection)

3、 Value: The 'capillaries' of industrial systems

Old System "Renewal": A large number of factories in the 1980s and 1990s (such as petrochemicals and textiles) still use PO series old equipment for their control systems. The new modules are incompatible and can only be maintained by it (for example, in a textile factory, replacing PO151JS requires changing the entire wiring logic, with a cost of millions);

Scenario specialization: Designed for extreme scenarios (such as redundant PO176RU and anti reverse connection of PO176RV), replacing ordinary modules may lead to safety accidents (such as using ordinary actuators in nuclear power, redundancy failure=nuclear leakage risk);

Unknown hero ": not as conspicuous as PLC/controller, but the entire factory relies on it for signal acquisition/execution. It was shut down for one hour and lost millions, belonging to the" inconspicuous but core "existence.

Tags: P0150HQ, P0152KL, P0170NS