Siemens CP 1542-5 PROFIBUS Communication Processor for SIMATIC S7-1500 6GK75425FX100XE0

Automation engineers integrating PROFIBUS DP networks with SIMATIC S7-1500 PLCs can use the Siemens CP 1542-5 communication processor. This module enables the S7-1500 controller to operate as a PROFIBUS DP master or slave, providing seamless connectivity to field devices, drives, and remote I/O.

Key specifications

• Product type: Communication processor
• Compatibility: SIMATIC S7-1500 PLCs
• Network protocol: PROFIBUS DP
• PROFIBUS role: DP master or DP slave
• Communication services: S7 communication, open communication (SEND/RECEIVE), PG/OP communication
• Configuration software: TIA Portal
• Number of interfaces: 1 x PROFIBUS DP
• PROFIBUS data rate: 9.6 kbit/s to 12 Mbit/s
• Power supply: 24 V DC via S7-1500 backplane bus
• Current consumption: max. 0.2 A from backplane
• Operating temperature: 0 °C to 60 °C
• Protection class: IP20
• Mounting: DIN rail (integrated with S7-1500 system)
• Diagnostics: extensive module and PROFIBUS diagnostics
• Time synchronization: supported (NTP client)
• Firmware update: via TIA Portal
• Security: access protection via TIA Portal
• Module width: single-width

Why choose it

The CP 1542-5 simplifies PROFIBUS integration for S7-1500 systems, offering flexible master/slave operation and robust diagnostics. Its single-width design saves space on the DIN rail, and configuration is streamlined with TIA Portal.

Ideal use cases

• Connecting S7-1500 PLCs to existing PROFIBUS DP networks
• Implementing distributed I/O with remote PROFIBUS slaves
• Data exchange with drives, encoders, and other field devices
• Migration projects where PROFIBUS must coexist with PROFINET

Good to know

The module draws power from the S7-1500 backplane bus, eliminating the need for an external power supply. It supports firmware updates via TIA Portal, ensuring long-term maintainability. Note: PROFINET interface is not included; this module is dedicated to PROFIBUS DP.