Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Module type | CM 1241 RS 232 / 422 / 485 |
| Interface count | 1 |
| Interfaces | RS 232 (full duplex) / 422 / 485 |
| Maximum RS 232 transmission rate | 115.2 kbit/s |
| Maximum RS 485 transmission rate | 250 kbit/s |
| Typical backplane input current | 170 mA from backplane bus at 5 V DC |
| Typical power loss | 0.9 W |
| Connection | Push-in terminal block |
| Protection degree | IP20 |
Applications
- Serial protocol communication: Supports serial communication using Freeport, ASCII, Modbus RTU master, Modbus RTU device and USS protocol drivers.
Key Features
- Serial communication interface: CM 1241 provides 1 RS 232 (full duplex) / 422 / 485 interface.
- Protocol drivers: Integrated protocol drivers support Freeport, ASCII, Modbus RTU master, Modbus RTU device and USS. ASCII and USS are available as library functions.
- Transmission rates: Maximum transmission rate is 115.2 kbit/s for RS 232 and 250 kbit/s for RS 485.
- Point-to-point cable length: Maximum cable length is 1 000 m; RS 232 is limited to 10 m shielded, while RS 422/485 support 1 000 m shielded maximum.
- Connection and diagnostics: The module has a push-in terminal block, a diagnostics function and a DIAG LED for output status.
- Electrical and protection data: Typical input current from the backplane bus is 170 mA at 5 V DC, typical power loss is 0.9 W, and protection is IP20.
Frequently Asked Questions
1. What interface does Siemens 6ES7241-1EA50-0XB0 provide?
It provides 1 RS 232 (full duplex) / 422 / 485 interface.
2. Which protocol drivers are supported?
It supports Freeport, ASCII, Modbus RTU master, Modbus RTU device and USS. ASCII and USS are available as library functions.
3. What are the maximum transmission rates?
The maximum rate is 115.2 kbit/s for RS 232 and 250 kbit/s for RS 485.
4. What connection is included?
The module has a push-in terminal block.
