6ES7341-1CH01-0AE0 Siemens CP341 Comm Processor

6ES7341-1CH01-0AE0 Siemens CP341 Communication Processor with RS422/485 Interface

Product Introduction

The 6ES7341-1CH01-0AE0 serves as a spare part communication processor for the SIMATIC S7-300 series. This CP 341 module features a fully isolated RS422/485 (X.27) serial interface. It handles point-to-point communication with industrial devices over long distances. You can deploy it for ASCII, 3964(R), or RK512 protocols. Furthermore, this CP 341 allows reloadable customer-specific drivers, which gives you excellent flexibility. Note that this module needs an external 24V DC power supply connected via screw terminals.

Technical Specifications of 6ES7341-1CH01-0AE0

Electrical and Power Data

• Rated supply voltage: 24V DC (required)

• Input current from 24V DC L+: max. 240 mA

• Input current from backplane bus 5V DC: max. 70 mA

• Maximum power loss: 5.8 W

Interface and Transmission

• Number of interfaces: 1 (fully isolated)

• Interface type: RS422/RS485 (X.27)

• Connector type: 15-pin sub D connector

• Minimum baud rate: 0.3 kbit/s

• Maximum baud rate: 76.8 kbit/s

• Cable length: max. 1200 meters

Supported Protocols and Important Limitations

• 3964(R) protocol: Yes (max. 1024 bytes) – but not available with RS485

• ASCII protocol: Yes (max. 1024 bytes)

• RK512 protocol: Yes (max. 1024 bytes) – but not available with RS485

• Reloadable customer-specific drivers: Yes

Transmission Rates by Protocol

• With 3964(R) protocol: up to 76.8 kbit/s

• With ASCII protocol: up to 76.8 kbit/s (0.3, 0.6, 1.2, 2.4, 4.8, 9.6, 19.2, 38.4, 57.6, and 76.8 kbit/s)

• With RK512 protocol: up to 76.8 kbit/s

• Important note: 76.8 kbit/s only achievable with half duplex

Software and Memory

• Function block length in RAM: max. 5500 bytes for sending and receiving data

Mechanical and Environmental Parameters

Physical Dimensions

• Width: 40 mm

• Height: 125 mm

• Depth: 120 mm

• Weight: approx. 300 g

Connection Method for Power Supply

• 3 screw-type terminals: L+, M, GND

Installation Guide for CP 341 with RS422/485

First, insert the 6ES7341-1CH01-0AE0 into an available slot on your S7-300 rack. Then connect the external 24V DC supply to the L+, M, and GND screw terminals. Meanwhile, attach your RS422 or RS485 device using a 15-pin sub D connector. This CP 341 supports cable runs up to 1200 meters, which makes it perfect for large factories. Next, configure the protocol using the software on the included CD. Finally, load your custom driver if standard protocols do not suit your needs. However, remember that 3964(R) and RK512 protocols only work with RS422, not with RS485.

Packaging List for 6ES7341-1CH01-0AE0

• 1 x SIMATIC CP 341 communication processor (6ES7341-1CH01-0AE0)

• 1 x Configuration package on CD

• No certificates or warranty documents included

Shipping Method: FedEx, UPS, DHL

Frequently Asked Questions (FAQ)

1. What is the maximum cable length for the 6ES7341-1CH01-0AE0?
You can achieve up to 1200 meters when using the RS422/RS485 interface. This makes the 6ES7341-1CH01-0AE0 ideal for distributed factory layouts.

2. Can I use the 3964(R) protocol with RS485 on this module?
No, you cannot. The 6ES7341-1CH01-0AE0 supports 3964(R) and RK512 only with RS422. For RS485 operation, you must use ASCII or custom reloadable drivers.

3. Does this CP 341 require an external 24V power supply?
Yes, it does. You must connect a separate 24V DC supply to the L+, M, and GND terminals. The backplane bus alone cannot power this module.

4. What is the actual maximum transmission rate for this module?
The physical interface supports up to 76.8 kbit/s. However, this speed is only achievable with half-duplex operation. The module supports multiple lower speeds as well.

5. Can I load my own custom communication protocol?
Absolutely. Unlike the CP 340, this 6ES7341-1CH01-0AE0 supports reloadable customer-specific drivers. This gives you full flexibility for non-standard or legacy applications.