080 782 4266 🚚 Free shipping over R3,000
Account
Account
Wish lists
Contact Us
Need help with your purchase, guidance on the products or any general assistance, please reach out to us.
Contact us
Description
xProduct Overview
The SIMATIC S7-1200 Communication Module CM 1241 provides RS232 serial communication capabilities for SIMATIC S7-1200 controllers. Featuring a 9-pole D-sub pin connector and Freeport protocol support, this module enables versatile point-to-point serial communication with industrial devices and legacy systems.
Key Features
- RS232 Interface: Standard V.24 serial communication for point-to-point connections
- Freeport Protocol: Message-based communication with user-defined formats
- 9-Pole D-Sub Connector: Male pin connector for secure connections
- Multiple Protocol Support: ASCII, USS drive protocol, Modbus RTU, 3964(R)
- TIA Portal Integration: Simple configuration through STEP 7 Basic
- Industrial Grade: Robust design for demanding automation environments
Technical Specifications
- Interface: RS232 (V.24) with 9-pole D-sub pin connector (male)
- Protocol Support: Freeport, ASCII, Modbus RTU Master/Slave
- Dimensions: 30 × 100 × 75 mm (W × H × D)
- Weight: 0.152 kg
- Power Supply: 24V DC from CPU backplane (+5V DC, 200mA max)
- Power Consumption: 1.1W typical
- Cable Length: Maximum 10m point-to-point connection
- Telegram Length: Maximum 1 kbyte (Freeport)
Communication Capabilities
Supported Protocols:
- Freeport: User-defined message formats with configurable parameters
- ASCII: Interface handshake signals controlled via user program
- Modbus RTU: Master and slave functionality for industrial networks
- USS Drive Protocol: Communication with Siemens drives
- 3964(R): Standard industrial communication protocol
Configuration Options:
- Configurable baud rates and data formats
- Selectable data bits, parity, and stop bits
- Hardware and software flow control
- Interrupt-driven and polling communication modes
Applications & Integration
Primary Applications:
- Legacy system integration with existing RS232 devices
- Industrial device communication (sensors, drives, instruments)
- Data collection from serial-based equipment
- SCADA system connectivity and monitoring
- Process control and automation systems
System Compatibility:
- All SIMATIC S7-1200 CPU series (1211C, 1212C, 1214C, 1215C, 1217C)
- TIA Portal programming with STEP 7 Basic
- Direct installation in communication module slot
- Front-accessible connector for easy wiring
Installation & Configuration
- Module Installation: Plugs directly into S7-1200 communication slot
- Connector Type: 9-pole D-sub male for industry-standard connections
- Cable Requirements: Standard RS232 cable (10m maximum length)
- Programming: Configure through TIA Portal hardware configuration
- Function Libraries: Pre-built communication function blocks available
Quality & Compliance
- Status: Active Product (PM300)
- Origin: China | EAN: 6940408102095 | UPC: 887621416294
- RoHS Compliant: Since 30.08.2013 | WEEE: Take-back obligation applies
- REACH: Contains lead, lead oxide, and BPA above 0.1% w/w (safe when used as intended)
Package Contents
- 1 × CM 1241 RS232 Communication Module
- Technical documentation and installation guide
Download existing graphical data for this product:
Specifications
x| IP Rating | IP20 |
| Country of Origin | Germany |
| Compliance/Certifications | CE mark / cULus / CSA approval / FM approval / KC approval / Marine Approval / RCM / UL approval |
| Temperature: Operating | -20°C to 60°C (for horizontal installation) / -20°C to 50°C (for vertical installation) |
| Part Length (mm) | 10 000mm |
| Packaging size / unit | pc(s) |
| Type of Voltage | DC |
| Supply Voltage | 24 VDC |
Documents
x- Choosing a selection results in a full page refresh.