# Communication Module, 35 mm x 127 mm x 147 mm, RS422 Serial Connection

![Product image](https://novapart.co/image/farnell:3555406/)

**URL**: https://novapart.co/products/6ES7541-1AB00-0AB0/communication-module-35-mm-x-127-147-rs422-serial
**SKU**: 6ES7541-1AB00-0AB0
**Manufacturer**: SIEMENS
**Category**: Automation & Process Control || Process Controllers, Programmers & Indicators || Controllers || Controller Accessories
**Price**: €828.2400
**Stock**: 10+

## Specifications

| Parameter | Value |
|---|---|
| Svhc | To Be Advised |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3555406/)

**6ES7541-1AB00-0AB0** 

**Data sheet** 

SIMATIC S7-1500, CM PTP RS422/485 HF Communication module for Serial connection RS422 and RS485, Freeport, 3964 (R), USS, MODBUS RTU Master, Slave, 115200 Kbit/s, 15-Pin D-sub socket 

|**General information**||
|---|---|
|Product type designation|CM PtP RS 422 / 485 HF|
|Product function||
|● I&M data|Yes; I&M 0|
|● Fast startup|Yes|
|Engineeringwith||
|● STEP 7 TIA Portal configurable/integrated from version|V12 / V12|
|● STEP 7 configurable/integrated from version|V5.5 SP2 with GSD file|
|● PROFIBUS from GSD version/GSD revision|- / -|
|● PROFINET from GSD version/GSD revision|V2.3 / -|
|**Installation type/mounting**||
|Rail mounting|Yes; S7-1500 mountingrail|
|**Input current**||
|Current consumption(rated value)|43 mA; From the backplane bus|
|**Power**||
|Power consumption from the backplane bus|0.65 W|
|**Power loss**||
|Power loss, typ.|0.6 W|
|**Address area**||
|Address spaceper module||
|● Inputs|8 byte|
|**Interface types**||
|RS 485||
|● Transmission rate, max.|115.2 kbit/s|
|● Cable length, max.|1 200 m|
|RS 422||
|● Transmission rate, max.|115.2 kbit/s|
|● Cable length, max.|1 200 m|
|● 4-wire full duplex connection|Yes|
|● 4-wire multipoint connection|No|
|**Protocols**||
|Integratedprotocols||
|Freeport||
|— Telegram length, max.|4 kbyte|
|— Bitsper character|7 or 8|
|— Number of stopbits|1 or 2 bit|
|— Parity|None, even, odd, always 1, always 0, any|
|3964 (R)||



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5/16/2026 

|— Telegram length, max.|4 kbyte|4 kbyte|4 kbyte|
|---|---|---|---|
|— Bitsper character|7 or 8|||
|— Number of stopbits|1 or 2 bit|||
|— Parity|None, even, odd, always 1, always 0, any|||
|Modbus RTU master||||
|— Address area|1 to 247, extended 1 to 65535|||
|— max. number of devices|32|||
|Modbus RTU device||||
|— Address area|1 to 247, extended 1 to 65535|||
|Telegram buffer||||
|● Buffer memoryfor telegrams|8 kbyte|||
|● Number of telegrams which can be buffered|255|||
|**Interrupts/diagnostics/status information**||||
|Diagnostics function|Yes|||
|Alarms||||
|● Diagnostic alarm|Yes|||
|● Hardware interrupt|No|||
|Diagnoses||||
|● Wire break|Yes|||
|Diagnostics indication LED||||
|● RUN LED|Yes;green LED|||
|● ERROR LED|Yes; red LED|||
|● Receive RxD|Yes; Yellow LED|||
|● Transmit TxD|Yes; Yellow LED|||
|**Potential separation**||||
|between backplane bus and interface|Yes|||
|**Isolation**||||
|Isolation tested with|707 V DC(type test)|||
|**Ambient conditions**||||
|Ambient temperature duringoperation||||
|● horizontal installation, min.|0 °C|||
|● horizontal installation, max.|60 °C|||
|● vertical installation, min.|0 °C|||
|● vertical installation, max.|40 °C|||
|Altitude duringoperation relatingto sea level||||
|● Installation altitude above sea level, max.|5 000 m; restrictions for installation altitudes > 2 000 m, see ET 200MP system<br>manual|||
|**Decentralized operation**||||
|to SIMATIC S7-300|Yes|||
|to SIMATIC S7-400|Yes|||
|to SIMATIC S7-1500|Yes|||
|to standard PROFINET controller|Yes|||
|**Dimensions**||||
|Width|35 mm|||
|Height|147 mm|||
|Depth|127 mm|||
|**Weights**||||
|Weight, approx.|0.22 kg|||
|**Classifications**||||
|||**Version**|**Classification**|
||eClass<br>eClass<br>eClass<br>eClass<br>eClass<br>eClass<br>eClass|14<br>12<br>9.1<br>9<br>8<br>7.1<br>6|27-24-22-08<br>27-24-22-08<br>27-24-22-08<br>27-24-22-08<br>27-24-22-08<br>27-24-22-08<br>27-24-22-08|



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Subject to change without notice © Copyright Siemens 

5/16/2026 

ETIM 10 EC001423 ETIM 9 EC001423 ETIM 8 EC001423 ETIM 7 EC001423 IDEA 4 3564 UNSPSC 15 32-15-17-05 ~~ee~~ **Approvals / Certificates General Product Approval** ~~L~~ Miscellaneous e AL **General Product Approval EMV Test Certificates** Confirmation Type Test CertificSpecial Test Certific- ~~i~~ cc UKca @ ~~Ss~~ ates/Test Report ate **Test Certificates Maritime application** Miscellaneous **Maritime application other Environment** CCS (China ClassificaMiscellaneous Confirmation Environmental Contion Society) ~~ee a~~ firmations 7 QC PASS | **Environment** Environmental Confirmations ~~OO~~ e EPD **last modified:** 10/23/2025 ; 

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Subject to change without notice © Copyright Siemens 

5/16/2026 



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- [Supplier page](https://es.farnell.com/siemens/6es7541-1ab00-0ab0/controller-accessories/dp/3555406)
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