Shipping information

Do you require same-day delivery or express shipping with a defined delivery time for this item?
Please contact us!

Product description

The Siemens 6ES7 340-1AH02-0AE0 is a CP 340 communications processor for serial point-to-point links in the SIMATIC S7-300 automation system. Its isolated RS-232C interface connects the controller to communication partners such as PCs, barcode scanners, printers or devices using simple serial protocols. Connection is via a 9-pole Sub-D plug. The supplied drivers support ASCII, 3964(R) and printers. With the 3964(R) procedure, the processor reaches transmission rates up to 19.2 kBaud; ASCII and printer drivers operate at up to 9.6 kBaud. Siemens specifies a maximum cable length of 15 metres for the RS-232C connection. The transmitted signals include TXD, RXD, RTS, CTS, DTR, DSR, RI, DCD and GND. Status LEDs indicate transmitting, receiving and group faults directly on the module. The CP 340 is supplied with 5 V through the S7-300 backplane bus and draws a maximum of 165 mA. Its typical power dissipation is 0.85 watts. The permissible operating temperature ranges from 0 to +60 °C, while the storage range is −40 to +70 °C. With dimensions of 40 × 125 × 120 millimetres, the module occupies one standard slot. According to Siemens, the net weight of this order variant is approximately 0.357 kilograms. 3964(R) telegrams can be up to 1024 bytes long; character frames can be parameterised with 10 or 11 bits. Per program cycle, the standard blocks transfer 14 bytes when transmitting and 13 bytes when receiving. This gives typical serial automation tasks clearly defined data handling. The unambiguous order number supports exact matching with existing hardware configurations, cables and engineering versions, as well as targeted spare-part procurement for installed S7-300 systems.

Siemens 6ES7 340-1AH02-0AE0

Specifications

Manufacturer Siemens
Product range SIMATIC S7-300
Manufacturer/order/identification number 6ES7 340-1AH02-0AE0
Device type CP 340 communications processor
Interface RS-232C (V.24), electrically isolated
Front connection 9-pole Sub-D plug
RS-232C signals TXD, RXD, RTS, CTS, DTR, DSR, RI, DCD and GND
Protocol drivers ASCII, 3964(R) and printer
Transmission rate up to 19.2 kBaud with 3964(R); up to 9.6 kBaud with ASCII or printer
Cable length max. 15 m
Supply 5 V via S7-300 backplane bus
Current consumption max. 165 mA
Power dissipation typically 0.85 W
Operating temperature 0 to +60 °C
Storage temperature −40 to +70 °C
Dimensions 40 × 125 × 120 mm
Net weight 0.357 kg
Status indicators LEDs for TXD, RXD and SF
Telegram length max. 1024 bytes with 3964(R)
Character frame 10 or 11 bits
Control cabinet with PLC modules and automation components
Machine downtime in a production environment

Machine downtime?

Faster delivery

Is your machine down and do you require particularly fast delivery? Tell us directly. We will do everything possible to provide a quotation with the fastest available delivery and find a solution that matches your schedule.

Our highest priority is to keep your production processes running. Rely on our expertise and flexible service to minimise machine downtime effectively.

Contact us now!

Product safety

Manufacturer / EU responsible person

FAQ

Frequently asked questions

Contact us
Which protocols does the Siemens 6ES7 340-1AH02-0AE0 support?

The CP 340 supports the ASCII driver, the 3964(R) procedure and a printer driver. The RS-232C variant is designed for serial point-to-point connections.

What maximum transmission rate does the CP 340 reach?

Up to 19.2 kBaud is possible with 3964(R). The ASCII and printer drivers support up to 9.6 kBaud; the maximum RS-232C cable length is 15 m.

Is there a guarantee?

Yes, we provide a 14-day functional guarantee for used items. This means the component must be operational when received.

Please note that the guarantee only applies when the warranty seal is undamaged.

If a defect occurs within 14 calendar days, please contact us in writing. Subject to availability, we will provide a replacement or refund the full purchase price after return.

Further details are provided in the terms and conditions supplied with your quotation.

How quickly do you dispatch and which shipping options are available?

We generally dispatch immediately - in many cases on the same working day. For particularly urgent requirements or machine downtime, we find a suitable solution as quickly as possible and provide a specific delivery window on request.

Express shipping or collection from our premises is also possible, depending on the situation. State your requirements during the ordering process or contact us directly.

We ship worldwide and work with reliable shipping partners, from parcel services to freight forwarding. Freight shipments normally require some preparation so the goods arrive safely and undamaged.

Which payment methods are available?

Payment is normally made by bank transfer against invoice. Payment is due within 10 calendar days of receiving the goods.

As a rule, we offer purchase on account for all customers. In individual cases, such as new customers or particularly high-value components, we may agree advance payment. This decision is made individually and communicated transparently.

Can we return items if they were ordered incorrectly?

Because we sell exclusively to business customers (B2B), there is no general right of return and no consumer right of withdrawal.

Please note that returns of functioning goods are generally excluded. In justified exceptional cases, we can assess an individual solution, but this is not the standard procedure.

Is there a discount when ordering several items?

For larger order quantities or several items of one type, we can offer individual discounts.

Simply send us a quick enquiry - we check availability and will gladly prepare a tailored quotation with quantity pricing.

Do you also purchase industrial spare parts?

Yes, we also purchase automation components, such as frequency inverters, PLC assemblies, panels, servo motors and CPUs. Components from Siemens, Lenze, Schneider Electric, Control Techniques or Heidenhain are especially sought after, and other brands are also possible.

The process is straightforward: email us an inventory list or overview photos at info@reha-industriekomponenten.de. We calculate a market-based purchase price and send you an offer.

Receive a quotation by email

Request price

Complete the form with your enquiry. We will respond with price, availability and delivery time.