Siemens 3WL1116/3WL1216 1600A ETU45B-G-LCD-3P의 통신 프로토콜 및 모듈 구성

Siemens 3WL1116/3WL1216 1600A ETU45B-G-LCD-3P의 통신 프로토콜 및 모듈 구성

1. Core Communication Protocols and Module Types

The communication function of this circuit breaker model is implemented via optional communication modules, supporting two mainstream industrial protocols, 아래에 자세히 설명되어 있습니다:

1. Protocol Functions and Application Scenarios
2. 프로피버스 DP (COM15 Module)

Supports DPV1 functions (diagnosis, 경보, 매개변수화), facilitating integration into upper-level systems such as Siemens TIA Portal.

Transmissible data: 현재의, 전압, 힘, switch status, trip cause, fault records, 등.

일반적인 애플리케이션: industrial automation production lines, large-scale factory power distribution systems, seamless connection with S7 series PLCs.

2. MODBUS RTU (COM16 Module)

Adopts standard Modbus RTU frame format, supporting commonly used function codes such as 03 (Read Holding Registers), 06 (Preset Single Register) 그리고 10 (Preset Multiple Registers).

Enables remote opening/closing, protection parameter setting, and energy data acquisition.

일반적인 애플리케이션: building automation, infrastructure projects, compatible with third-party SCADA systems.

III. Integration of Communication and Measurement Functions

Plus Measurement Function (선택 과목): Cooperates with communication modules to achieve high-precision energy management, with measurement accuracy as follows:

현재의: ±1%

전압: ±1.5%

힘: ±2%

Data Logging Capability: Can store 100 fault records (trip type, 시간, current value), supporting fault tracing and system diagnosis.

원격 제어: Realizes remote opening/closing and parameter modification through communication module + electric operating mechanism, without on-site operation.

1. Configuration and Selection Notes
2. Communication modules are optional accessories: The basic model does not include communication functions; COM15 or COM16 modules need to be ordered separately.
3. Protocol compatibility: Select the protocol according to the upper monitoring system (PROFIBUS DP is suitable for Siemens systems, while MODBUS RTU is suitable for third-party systems).
4. Wiring requirements:

프로피버스 DP: Use shielded twisted pair cables; the bus length is related to the transmission rate (maximum length of 100m at 12 Mbps).

MODBUS RTU: Adopt RS485 bus, supporting up to 32 connected devices, with a maximum bus length of 1200m (~에 9.6 kbps).

4. ETU45B-G-LCD Support: The electronic trip unit has a built-in communication interface, allowing direct installation of COM15/COM16 modules without additional hardware.
5. Upgrade and Replacement Solution

Siemens 3WL 시리즈는 점차적으로 3WA 시리즈로 업그레이드되었습니다. (예를 들어, 3WA1116-3EG45-4GA4). In addition to retaining PROFIBUS DP and MODBUS RTU, it has added an Ethernet communication module (supporting PROFINET and EtherNet/IP), making it more suitable for Industry 4.0 and Internet of Things applications.