WAGO 750-370 Fieldbus Coupler

WAGO 750-370 is a PROFINET IO Fieldbus Coupler for the WAGO 750 Series I/O System. This model is a 2nd generation (Gen.2) product and is currently discontinued. The official direct replacement is the 3rd generation model 750-377.

1. Основные функции & Цель

Product type: PROFINET IO slave coupler

Core function: Acts as a gateway to connect WAGO 750 Series I/O modules to a PROFINET IO industrial Ethernet network

Network interface: Integrated 2-port 10/100 Mbps Ethernet switch (2× RJ45), supports wire-speed forwarding and auto-negotiation

System bus: Connects up to 64 WAGO 750 I/O modules via the internal K-Bus

Configuration methods: DIP switches, DCP protocol, Web-Based Management (WBM)

2. Ключевые технические параметры

3. Model Code Meaning (750-370)

750: Серия продуктов (WAGO-I/O-SYSTEM 750)

3: Fieldbus type (3 = PROFINET)

70: Specific model identifier (2nd generation, 2 ports)

4. Запасная модель (Official Recommendation)

750-370 ➡️ 750-377

750-377: 3rd generation (Gen.3) PROFINET coupler, Eco Advanced version

Fully compatible: Direct replacement for 750-370, identical hardware, software and wiring

Performance improvements: Supports S2 system redundancy, faster response time, lower power consumption

Same width: 51 мм, can be installed directly in the original rail position

Other alternatives in the same series:

750-375: 3rd generation Basic version, similar functions to 750-377 with some simplified features

750-362: Modbus TCP coupler (if changing the fieldbus protocol)

5. Типичные применения

Distributed I/O systems for factory automation

Data acquisition and control between field level and control level (ПЛК)

PROFINET networks with mainstream PLCs such as Siemens, Роквелл, Beckhoff, и т. д..

Industrial sites requiring high real-time performance and long-distance communication

WAGO 750 Список моделей серий

The WAGO 750 Series is a modular, distributed I/O system with IP20 protection and DIN rail mounting, supporting all major fieldbus protocols. Below is a complete model list organized into five categories: fieldbus couplers, digital I/O, analog I/O, function modules, власть & auxiliary modules (including common/mainstream models).

1. Fieldbus Couplers (Head Station)

Responsible for communication with upper-level PLC/controller and connecting 750 Series I/O modules.

1.1 ПРОФИНЕТ (Общий)

750-370: 2nd generation, 2 ports, прекращено (replacement: 750-377)

750-377: 3rd generation, Eco Advanced, 2 ports, direct replacement for 750-370

750-375: 3rd generation, Базовая версия

750-373: 3rd generation, Extreme version (-40°С ~ +70°С)

1.2 Модбус TCP / ЭтерНет/IP

750-362: Модбус TCP, 4поколение

750-363: ЭтерНет/IP, 4поколение

1.3 ПРОФИБУС ДП

750-303: 1st generation, 12 MBd

750-333: 2nd generation, 12 MBd

1.4 Other Fieldbuses

750-312: Модбус РТУ (RS-485)

750-337: CANopen

750-346: DeviceNet

2. Digital Input Modules (ОТ, Желтый)

2.1 Standard 24V DC

750-402: 4 каналы, 24В Вашингтоне, non-isolated

750-408: 8 каналы, 24В Вашингтоне, non-isolated

750-410: 16 каналы, 24В Вашингтоне, non-isolated

750-415: 8 каналы, 24В Вашингтоне, with diagnostics

750-417: 8 каналы, 24В Вашингтоне, isolated

2.2 Special / Explosion-Proof

750-438: 2 каналы, NAMUR Ex i (intrinsically safe)

750-439: 8 каналы, NAMUR Ex i (with wire-break diagnostics)

3. Digital Output Modules (ДЕЛАТЬ, Красный)

3.1 Standard 24V DC

750-504: 4 каналы, 24В Вашингтоне, 0.5А

750-517: 2 каналы, relay output, 250V AC/30V DC, 2А

750-523: 4 каналы, 24В Вашингтоне, 2А, with diagnostics

750-527: 4 каналы, solid-state relay (SSR), 30В переменного/постоянного тока, 2А

3.2 High Voltage / High Current

750-530: 2 каналы, 230В и, 0.5А

750-547: 1 канал, 440В и, 16А, high-current relay

4. Analog Input Modules (AI, Зеленый)

4.1 Standard Current / Напряжение

750-450: 4 каналы, 0–10V / ±10V

750-451: 8 каналы, 0–10V / ±10V

750-455: 4 каналы, 0/4–20mA

750-459: 4 каналы, 0–10V, single-ended

4.2 Температура (RTD/TC)

750-460: 4 каналы, РТД (Pt100/Ni1000)

750-461: 2 каналы, РТД (Pt100), high precision

750-469: 2 каналы, thermocouple (TC)

4.3 Special Signals

750-476: 2 каналы, ±10V, 60Гц

750-484: 2 каналы, resistance bridge / strain gauge

5. Analog Output Modules (AO, Синий)

750-550: 2 каналы, 0–10V / ±10V

750-552: 2 каналы, 0/4–20mA

750-553: 4 каналы, 0/4–20mA

750-555: 4 каналы, 0–10V

6. Функция & Special Modules

Counter / Encoder

750-613: 2 каналы, 500kHz counter

750-614: 1 канал, SSI absolute encoder

Коммуникация

750-628: RS-232/RS-485 interface

750-652: IO-Link Master (4 ports)

Control

750-630: proportional valve controller

750-640: RTC real-time clock module

7. Власть & Auxiliary Modules

7.1 Power Modules

750-600: System power supply, 24В Вашингтоне

750-602: System + field power supply, 24В Вашингтоне, with diagnostics

750-606: Ex i intrinsically safe power module

7.2 Вспомогательный / End Modules

750-601: Potential distribution module (separates voltage potentials)

750-616: Spacer module (increases creepage distance in hazardous areas)

750-975: End module (termination)

Quick Selection Guide (Core Models)

PROFINET head station: Первый выбор 750-377 (replaces 370)

Standard DI/DO: 8-channel commonly used 750-408 (ОТ) / 750-523 (ДЕЛАТЬ)

Standard AI/AO: 4-channel commonly used 750-455 (AI 4–20mA) / 750-553 (AO 4–20mA)

Temperature measurement: 750-460 for Pt100, 750-469 for thermocouples

Differences Between WAGO 750-370 и 750-377

The core differences between WAGO 750-370 и 750-377 lie in generation, redundancy support, diagnostic capability and power consumption. А 750-377 is a 3rd generation Eco Advanced version and the official direct replacement for the 750-370. It is mechanically compatible with DIN rail mounting and can be replaced directly.

Core Comparison Table

Detailed Key Differences

1. Redundancy & Надежность (Core Upgrade)

А 750-377 supports S2 system redundancy, allowing connection to two PROFINET controllers with automatic switchover if the primary controller fails, greatly improving system availability; the 750-370 does not support this function.

2. Диагностика & Обслуживание

А 750-377 features enhanced Web-Based Management (WBM), supporting topology detection, SNMP monitoring and detailed status information for more efficient network and I/O troubleshooting; the 750-370 only provides basic diagnostics.

3. Physical Dimensions & Layout

А 750-377 has a reduced width of 49.5 мм (приблизительно. 1.5 mm narrower than the 750-370) and lower weight (приблизительно. 107 g vs. 200 г), saving DIN rail space. Both are electrically compatible and can be replaced directly.

4. Discontinuation & Замена

А 750-370 is discontinued, with the 750-377 as the only official direct replacement. Other 3rd generation options include the 750-375 (Базовая версия, simplified functions) и 750-373 (Extreme version, wide temperature range -40…+70 °C).

Рекомендации по замене

Preferred replacement: Choose 750-377 for redundancy and enhanced diagnostics, suitable for new systems and long-term operation.

Budget-sensitive / no redundancy needed: Choose 750-375 (Базовая версия), similar functions to 377 with simplified features.

Extreme environments: Choose 750-373 (Extreme version) for -40…+70 °C wide temperature operation.

Both models share identical core electrical parameters and data capacity with low replacement cost. The main improvements of the 750-377 are the addition of S2 redundancy, enhanced diagnostics and a more compact physical design, making it the upgraded replacement for the 750-370.

Cross-Brand Model Comparison for WAGO 750-370

The WAGO 750-370 is a 2nd-generation PROFINET coupler and has been discontinued. Its official direct replacement is the 750-377. Below is a list of functionally equivalent and replaceable models sorted by brand/series, focusing on core matching features including PROFINET interface, 2-port switch, 24V DC power supply, and DIN rail mounting for easy replacement and project migration.

Core Comparison Table

Detailed Cross-Brand Comparison

1. Сименс

Рекомендуемая модель: 6ES7155-6AU01-0CN0 (ET 200SP IM 155-6 PN High Performance)

Protocol: PROFINET IO RT/IRT, compatible with Class B

Interface: 2×RJ45, 100Mbps switch

Источник питания: 24В Вашингтоне

Совместимость: Highly consistent in function with the 750-370, suitable for Siemens S7-1200/1500 controllers

Примечания по замене: Must be configured as ET 200SP in TIA Portal; process data size (320B in / 320B out) matches the 750-370.

2. Феникс Контакт

Рекомендуемая модель: AXL F BK PN (Номер заказа. 2701815)

Protocol: PROFINET IO RT Class C, high real-time performance

Interface: 2×RJ45, 100Mbps wire-speed forwarding

Макс. devices: 63 единицы, close to the 64-module capacity of the WAGO 750 ряд

Совместимость: защита IP20, Монтаж на DIN-рейку, 24V DC power supply, highly compatible in physical and electrical parameters

Примечания по замене: Configurable in third-party PLCs via GSDML files; supports topology detection and SNMP diagnostics, with better operation and maintenance capabilities than the 750-370.

3. Шнайдер Электрик

Рекомендуемая модель: BMXFCW3000 (Modicon M340 Ethernet module)

Protocol: Supports PROFINET IO and Modicon bus

Interface: 2×RJ45, industrial Ethernet

Совместимость: Suitable for M340 series, 24V DC power supply, Монтаж на DIN-рейку

Примечания по замене: Requires configuration via Schneider SoMachine software; strong protocol compatibility but no S2 redundancy function.

4. Beckhoff

Рекомендуемая модель: EL6631-0010 (PROFINET IO terminal module)

Protocol: PROFINET IO RT Class B

Interface: Integrated in EtherCAT terminals, 2-port switch

Совместимость: Consistent protocol with the 750-370, supports up to 64 module expansions

Примечания по замене: Suitable for Beckhoff CX series PLCs, configured via TwinCAT; strong real-time performance and diagnostic capabilities.

5. Rockwell Automation

Рекомендуемая модель: 1756-ENBT (ControlLogix Ethernet module)

Protocol: ЭтерНет/IP, requires gateway conversion to PROFINET

Совместимость: Supports 8-module expansion, industrial-grade reliability

Примечания по замене: Requires an additional PROFINET gateway (например, 1756-PN2) for protocol interoperability; suitable for migration within Rockwell systems.

6. Domestic Alternative (Экономичный)

Inovance: AM600-PN

Protocol: PROFINET IO RT Class B

Interface: 2×RJ45, 100Mbps

Совместимость: 64-module expansion, 24V DC power supply, Монтаж на DIN-рейку

Преимущества: Lower cost than imported brands, compatible with mainstream PLCs such as Siemens and Beckhoff, ideal for cost-sensitive projects.

Selection and Replacement Recommendations

1. First-choice replacement: Select the WAGO 750-377 — official direct replacement, fully compatible in dimensions (51ширина мм), wiring and software, with S2 redundancy and enhanced diagnostics.
2. Siemens systems: Use the 6ES7155-6AU01-0CN0 for easy configuration and seamless connection with S7-1200/1500.
3. Phoenix Contact systems: Use the AXL F BK PN for high real-time performance and rich diagnostics, ideal for applications requiring high network stability.
4. Cost-sensitive projects: Choose the Inovance AM600-PN, with performance close to imported models at a better price, suitable for domestic substitution projects.

Consistent protocol: Prioritize PROFINET IO models to avoid latency and failures caused by protocol conversion.

Interface compatibility: Must retain a 2×RJ45 industrial Ethernet switch supporting wire-speed forwarding and auto-negotiation.

Power and mounting: 24V DC power supply, DIN 35mm rail mounting, IP20 protection to ensure physical replacement without hardware modification.

Expansion capacity: Support up to 64 I/O modules to meet the original configuration requirements of the 750-370.