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Siemens 6AG1341-1CH02-7AE0 SIPLUS S7-300 CP 341 RS-422/485

Siemens 6AG1341-1CH02-7AE0 SIPLUS S7-300 CP 341 RS-422/485

Item NO.: 3745512
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Detail

  • Product NameSiemens 6AG1341-1CH02-7AE0 SIPLUS S7-300 CP 341 RS-422/485
  • Item NO.3745512
  • Weight0.3000 kg = 0.6614 lb = 10.5822 oz
  • CategoryPLC
  • BrandSiemens
  • Creation Time2026-08-24
SIPLUS S7-300 CP 341 RS-422/485 | 6AG1341-1CH02-7AE0

SIPLUS S7-300 CP 341 RS-422/485 6AG1341-1CH02-7AE0

Siemens · SIMATIC MLFB: 6AG1341-1CH02-7AE0
EN 50155 · extended temp
based on 6ES7341-1CH02-0AE0
Product Profile Technical Data System Role Compatibility Applications FAQ

Product Profile

SIPLUS S7-300 CP 341 RS-422/485 — a rugged communications processor for point-to-point serial communication in demanding environments. Based on the standard 6ES7341-1CH02-0AE0, this SIPLUS variant adds conformal coating and an extended temperature range of –25 … +70 °C, making it suitable for outdoor installations, chemical plants, and other harsh industrial settings.

Interface
RS 422/485 (X.27), isolated
Transmission rate
0.3 … 115.2 kbit/s
Max. cable length
1,200 m
Temperature range
–25 … +70 °C
Conformal coating
Yes
Product lifecycle (PLM): PM400 – Phase-out started 1 October 2023 (as per Siemens PLM data). This module is based on the standard CP 341 (6ES7341-1CH02-0AE0) and behaves identically in terms of functionality; the SIPLUS variant provides environmental protection.

Technical Data

Article number6AG1341-1CH02-7AE0
Product typeSIPLUS S7-300 CP 341 RS-422/485
Based on6ES7341-1CH02-0AE0
Interface typeRS 422 / RS 485 (X.27), isolated
Transmission rate, min.0.3 kbit/s
Transmission rate, max.115.2 kbit/s
Point-to-point cable length, max.1,200 m
Connector type15‑pin Sub‑D socket
Supply voltage (DC 24 V)Yes
Input current from L+, max.100 mA
Input current from backplane (5 V), max.70 mA
Power loss, typ.1.6 W
Power loss, max.2.4 W
Ambient temperature (operation)–25 … +70 °C
Storage / transport temperature–40 … +70 °C
Net weight0.304 kg
Country of originGermany

Integrated Protocol Drivers

3964 (R) (not with RS 485) ASCII RK 512 (not with RS 485) Printer driver
Max. telegram length: 4,096 bytes for all protocols.

System Role

The CP 341 serves as a point-to-point communication processor for the SIMATIC S7-300 automation system. It adds a serial interface (RS 422/485) to the S7-300 station, enabling data exchange with third-party devices such as barcode scanners, weighing systems, RFID readers, printers, and legacy equipment.

Key system role features:

  • Offloads serial communication from the CPU, preserving PLC scan time
  • Hardware-based protocol handling for deterministic data transfer
  • Supports distributed configuration via ET 200M (IM153)
  • Can operate in PROFINET IO networks with appropriate CPU and function blocks (FB7 / FB8)

Compatibility

Base product: 6ES7341-1CH02-0AE0 (standard S7-300 CP 341 RS-422/485)

System compatibility:

  • Mounts in any S7-300 rack slot
  • Compatible with S7-300 and S7-400H systems
  • Configuration via STEP 7 (identical to standard CP 341)
  • Protocol drivers: 3964(R), ASCII, RK 512, printer driver
  • Note: 3964(R) and RK 512 protocols are not supported with RS 485

Replacement considerations:

The SIPLUS variant is functionally identical to the standard CP 341. When replacing, verify that the SIPLUS environmental specification (conformal coating, extended temperature) is not required for the application. A standard CP 341 (6ES7341-1CH02-0AE0) can be used if environmental conditions permit.

Applications

  • Connection to SIMATIC S5 via 3964(R) or RK 512
  • Barcode scanners and RFID readers
  • Weighing systems and measuring devices
  • Printer connection (HP, Epson, PostScript, etc.)
  • PC communication via 3964(R) or ASCII driver
  • Third-party PLCs with 3964(R) or ASCII protocols
  • Data acquisition terminals (ES 2, MOBY I/L)
  • SCADA integration in water/wastewater
  • Chemical plants and mining (extended environment)
  • Outdoor installations and unheated cabinets
The CP 341 is particularly suited for applications where reliable serial communication is required in harsh environmental conditions.

Frequently Asked Questions

Q1: What is the difference between the SIPLUS and the standard CP 341?
The SIPLUS variant (6AG1341-1CH02-7AE0) is based on the standard CP 341 (6ES7341-1CH02-0AE0) but adds conformal coating and an extended temperature range of –25 … +70 °C for harsh environments.
Q2: Which protocols are supported by the CP 341 RS-422/485?
The module supports 3964(R), ASCII, RK 512, and printer drivers. Note that 3964(R) and RK 512 are not supported with RS 485.
Q3: What is the maximum cable length for RS-422/485 communication?
The maximum point-to-point cable length is 1,200 meters.
Q4: Can this module be used in a distributed ET 200M configuration?
Yes, the CP 341 can operate in a distributed configuration using the ET 200M I/O device (IM153).
Q5: What is the lifecycle status of this product?
The product is in phase-out (PM400) with an effective phase-out date of 1 October 2023. For new projects, consider alternatives from the S7-1500 or ET 200SP CM PTP families.

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