Image is for illustrative purposes only. Please refer to product description.
- Manufacturer
- Siemens
- Manufacturer part number
- 6ES7340-1AH02-0AE0
- Product family
- SIMATIC S7-300 PLC Modules
- Technical datasheet
- Data sheet
Specifications
| Attribute | Value |
|---|---|
| Type | Communications processor |
| Manufacturer lifecycle | Discontinued |
| Rated value (DC) / 24 V DC | No; Power supply via backplane bus 5V |
| Input current / from backplane bus 5 V DC, max. | 165 mA |
| Power loss, typ. | 0.6 W |
| Power loss, max. | 0.85 W |
| Interfaces/bus type | RS 232C (V.24) |
| Number of interfaces | 1; Isolated |
| Interfaces / Transmission rate, min. | 2.4 kbit/s |
| Interfaces / Transmission rate, max. | 19.2 kbit/s |
| Point-to-point connection / Cable length, max. | 15 m |
| Point-to-point connection / supported printers | HP-Deskjet, HP-Laserjet, IBM-Proprinter, user-defined |
| Point-to-point connection / Connector type | 9-pin sub D connector |
| Point-to-point connection / Integrated protocol driver / 3964 (R) | Yes |
| Point-to-point connection / Integrated protocol driver / ASCII | Yes |
Show all 38 specificationsShow fewer specifications
| Point-to-point connection / Integrated protocol driver / RK 512 | No |
|---|---|
| Point-to-point connection / Integrated protocol driver / customer-specific drivers reloadable | No |
| Point-to-point connection / Telegram length, max. / 3964 (R) | 1 024 byte |
| Point-to-point connection / Telegram length, max. / ASCII | 1 024 byte |
| Point-to-point connection / Transmission speed, RS 232 / with 3964 (R) protocol, max. | 19.2 kbit/s |
| Point-to-point connection / Transmission speed, RS 232 / with ASCII protocol, max. | 9.6 kbit/s |
| Point-to-point connection / Transmission speed, RS 232 / with printer driver, max. | 9.6 kbit/s |
| Diagnostics indication LED / Receive RxD | Yes |
| Diagnostics indication LED / Transmit TxD | Yes |
| Diagnostics indication LED / Group error SF (red) | Yes |
| Ambient temperature during operation / min. | 0 °C |
| Ambient temperature during operation / max. | 60 °C |
| Ambient temperature during storage/transportation / min. | -40 °C |
| Ambient temperature during storage/transportation / max. | 70 °C |
| Block / FB length in RAM, max. | 2 700 byte; Data communication, sending and receiving |
| Design of electrical connection for supply voltage | Over backplane bus |
| Width | 40 mm |
| Height | 125 mm |
| Depth | 120 mm |
| Weight, approx. | 300 g |
| Phase-out announced (PM400) | 1 October 2023 |
| Product cancellation (PM410) | 1 October 2025 |
| Spare part | Yes, supplied by Siemens as a spare part only |
Description
The Siemens 6ES7340-1AH02-0AE0 is the CP 340 point-to-point communications processor with one isolated RS 232C (V.24) interface. Siemens's data sheet gives transmission rates of 2.4 to 19.2 kbit/s and ASCII and 3964(R) protocol drivers. Siemens's data sheet marks it as a spare part. Siemens names no direct successor for the order number; its route forward is migration to the S7-1500 with ET 200MP.
Application: Serial point-to-point link for S7-300
Used with: SIMATIC S7-300 rack (S7-300 backplane bus)
What is the 6ES7340-1AH02-0AE0 used for?
It connects an S7-300 to serial devices such as barcode readers, printers, scales and older controllers.
Key features
- One isolated RS 232C (V.24) interface
- 2.4 to 19.2 kbit/s
- ASCII and 3964(R) protocol drivers
- Discontinued by Siemens on 1 October 2025; spare part only
Documents and Resources
Associated Products
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|---|---|---|---|---|---|
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 | 6GK7343-2AH11-0XA0Siemens | CP 343-2P AS-Interface master for S7-300 and ET 200M | In stock | View | |
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Product Questions
Is the 6ES7340-1AH02-0AE0 discontinued?
Yes. Its manufacturer lifecycle status is Discontinued.
Can another Siemens SIMATIC S7-300 part replace it?
Potential replacements must be checked against the required ratings, dimensions and connections. Sharing a family name does not establish interchangeability.
Do you ship worldwide?
Yes. TimControls ships worldwide. Parts usually ship within 3 to 7 working days of order confirmation, and the exact lead time and shipping options are stated on your quote. Include your delivery country and postal code when you ask for a quote.
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