PLC | Siemens | 6ES7 341-1AH02-0AE0 6ES7341-1AH02-0AE0 SIMATIC S7-300 CP 341

Product Description: Siemens 6ES7341‑1AH02‑0AE0

The Siemens 6ES7341‑1AH02‑0AE0 is a single‑channel communication processor that equips SIMATIC S7‑300 controllers with flexible point‑to‑point serial connectivity. Supporting freely configurable protocols as well as predefined drivers (ASCII, 3964(R), RK512, Modbus RTU master/slave), the CP 341 enables seamless integration of legacy or third‑party devices such as barcode scanners, weighing terminals, drives, and remote I/O. Transmission rates from 110 bit/s up to 115.2 kbit/s and selectable RS‑232 or RS‑422/485 electrical standards offer maximum versatility. Integrated diagnostics, status LEDs, and ready‑made STEP 7 function blocks simplify commissioning and maintenance.

Key Features

• Serial Interface: One configurable port (RS‑232 or RS‑422/485, switch‑selectable)
• Protocol Support: Freeport (user‑defined), ASCII, 3964(R), RK512, Modbus RTU master or slave
• Data Rates: 110 bit/s – 115.2 kbit/s, programmable in 24 steps
• Diagnostics: Integrated fault, event, and status messages with front‑panel LEDs
• Buffer Memory: 256‑byte transmit and 256‑byte receive FIFO per channel
• Galvanic Isolation: Optically isolated interface up to 500 V for robust operation
• Configuration: Parameterized in STEP 7; ready‑to‑use FBs/FCs for rapid application development
• Hot‑Swappable: Can be inserted or removed with power on (CiR support)

Technical Specifications

• Communication Interface: 1 × serial (RS‑232 or RS‑422/485)
• Supported Protocols: ASCII, 3964(R), RK512, Modbus RTU, Freeport
• Transmission Rate: 110 bit/s – 115.2 kbit/s
• Backplane Current (5 V): 0.5 A (typical)
• Power Consumption: ≈ 1.3 W
• Buffer Size: 256 bytes TX / 256 bytes RX
• Galvanic Isolation: Yes, 500 V DC
• Dimensions (W × H × D): 40 mm × 125 mm × 117 mm
• Weight: ~ 0.22 kg
• Operating Temperature: 0 °C … +60 °C
• Protection Class: IP20 (front)
• Mounting: S7‑300 rail; occupies one module slot

Application Areas

• Serial integration of weighing scales, barcode readers, printers, or smart sensors
• Linking S7‑300 PLCs to Modbus RTU networks as master or slave
• Retrofits requiring connection to legacy 3964(R) or RK512 devices
• Custom ASCII or proprietary protocol exchange with third‑party controllers
• Remote diagnostics and modem communication for process equipment

Advantages

• Protocol Versatility: One module covers multiple standard and user‑defined serial protocols.
• Fast Commissioning: STEP 7 wizard and Siemens function blocks reduce programming effort.
• Robust Operation: Galvanic isolation and integrated diagnostics enhance reliability and uptime.
• Space‑Efficient: Narrow 40 mm width conserves rack space in compact S7‑300 installations.
• Hot‑Swap Capability: Change modules without shutting down the PLC, minimizing production stops.