Product Description
Key Features
- Product identity: SIPLUS S7-1200 CB 1241 RS 485, product type designation CB 1241 RS 485, based on 6ES7241-1CH30-1XB0.
- RS-485 connection: RS-485 with terminal block; cable length max. 1 000 m for point-to-point connection.
- Protocol support: Supports Freeport, ASCII, Modbus RTU master, Modbus RTU device, and USS. ASCII and USS are available as library functions.
- Environmental configuration: Conformal coating; horizontal installation ambient temperature -25 °C to 60 °C, with +70 °C for 10 min (OT1, ST1/ST2 acc. to EN 50155).
- Protection and dimensions: IP20; width 38 mm, height 62 mm, depth 21 mm; weight approx. 40 g.
Technical Summary
| Product type | CB 1241 RS 485 |
|---|---|
| Based on | 6ES7241-1CH30-1XB0 |
| Connection | RS-485, terminal block |
| Protocol drivers | Freeport; ASCII; Modbus RTU master; Modbus RTU device; USS |
| Input current from backplane bus 5 V DC, typ. | 50 mA |
| Power loss, typ. | 1.5 W |
| IP degree of protection | IP20 |
| Operating temperature, horizontal installation | -25 °C to 60 °C; +70 °C for 10 min (OT1, ST1/ST2 acc. to EN 50155) |
| Conformal coating | Yes; Class 2 for high reliability acc. to EN 61086 |
| Product lifecycle | Active Product |
Frequently Asked Questions
What exact Siemens model is this module?
It is Siemens 6AG2241-1CH30-1XB0, SIPLUS S7-1200 CB 1241 RS 485, product type designation CB 1241 RS 485, based on 6ES7241-1CH30-1XB0.
Which protocols does the CB 1241 RS 485 support?
It supports Freeport, ASCII, Modbus RTU master, Modbus RTU device, and USS. ASCII and USS are available as library functions.
What connection and cable length does it have?
It has an RS-485 terminal block and supports a maximum cable length of 1 000 m for point-to-point connection.
What installation temperature limits should be confirmed?
For horizontal installation, the ambient temperature is -25 °C to 60 °C, with +70 °C for 10 min (OT1, ST1/ST2 acc. to EN 50155). For vertical installation, it is -25 °C to 50 °C.
