Communication Protocols and Module Configuration of Siemens 3WL1116/3WL1216 1600A ETU45B-G-LCD-3P

Communication Protocols and Module Configuration of Siemens 3WL1116/3WL1216 1600A ETU45B-G-LCD-3P

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, come dettagliato di seguito:

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

Supports DPV1 functions (diagnosi, allarme, parametrizzazione), facilitating integration into upper-level systems such as Siemens TIA Portal.

Transmissible data: attuale, voltaggio, energia, switch status, trip cause, registrazioni di guasti, ecc.

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

2. MODBUSRTU (COM16 Module)

Adopts standard Modbus RTU frame format, supporting commonly used function codes such as 03 (Leggi i registri delle aziende), 06 (Preset Single Register) E 10 (Preset Multiple Registers).

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

Applicazioni tipiche: automazione degli edifici, infrastructure projects, compatible with third-party SCADA systems.

III. Integration of Communication and Measurement Functions

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

Attuale: ±1%

Voltaggio: ±1.5%

Energia: ±2%

Data Logging Capability: Can store 100 registrazioni di guasti (tipo di viaggio, tempo, current value), supporting fault tracing and system diagnosis.

Telecomando: 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. Compatibilità del protocollo: 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. Requisiti di cablaggio:

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

MODBUSRTU: Adopt RS485 bus, supportando fino a 32 connected devices, with a maximum bus length of 1200m (A 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

La serie Siemens 3WL è stata gradualmente aggiornata alla serie 3WA (per esempio., 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.