PART NUMBER SEARCH
AMIKONG EXCESS CONTROL SYSTEM PARTS
Specializing In:Automation Spares(DCS, PLC, CNC) Servo Drives HMI Power supplies Controllers
-
Please try to be as accurate as possible with your search.
-
We can quote you on 1000s of specialist parts, even if they are not listed on our website.
-
We can't find any results for “”.
SEE PRODUCTS IN SEARCH PAGE ()
- Home
- ALL MANUFACTURERS
- Siemens
- Siemens Simatic S7
- 6ES7541-1AB00-0AB0
In Stock
Fast Shipping Available
· Product image is representative; revision or series may vary. Contact us to request a specific version.
- Customs & Documentation
- We prepare clear, order-specific documentation for every international shipment, including the commercial invoice, packing list and available product or compliance documents. Before dispatch, our logistics team confirms the consignee details, declared value, shipping terms and destination requirements with you. Tracking information is provided after shipment, helping your team prepare for import clearance with confidence.
Documents checked before dispatch · Shipment details confirmed · Global tracking provided
- Payment
- Payment is by bank wire only in RMB/CNY, GBP, EUR or USD. Amikon does not accept credit cards or provide credit terms. Cleared payment is required before shipment unless the written quotation expressly states otherwise.
- Product Condition
- Factory New These are new and current items that are procured directly from the manufacturer.
New In Sealed Package Parts are new. They have not been used and still have their original package seal intact.
New in Original Package These parts are new. The packages were not originally sealed by their original manufacturer.
-
20+
years in automation -
ISO 9001
certified quality system -
12 months
amikon warranty -
2-hour reply
from your account manager -
Success Story
solutions in action
-
Please try to be as accurate as possible with your search.
-
We can quote you on 1000s of specialist parts, even if they are not listed on our website.
-
We can't find any results for “”.
SEE PRODUCTS IN SEARCH PAGE ()
PRODUCT DESCRIPTION
Serial communication for an S7-1500 or ET 200MP station
Siemens 6ES7541-1AB00-0AB0 is the CM PtP RS422/485 HF communication module for SIMATIC S7-1500 and ET 200MP. It exchanges serial data through an isolated RS422/485 interface with Freeport, 3964(R), Modbus RTU and the documented USS instructions.
The module provides a 15-pin D-sub socket, an 8 kbyte receive buffer and transmission rates up to 115.2 kbit/s. Match the baud rate to cable length, preserve the X27 pin assignment and shield arrangement, and restore the correct STEP 7 communication blocks before commissioning.
The module provides a 15-pin D-sub socket, an 8 kbyte receive buffer and transmission rates up to 115.2 kbit/s. Match the baud rate to cable length, preserve the X27 pin assignment and shield arrangement, and restore the correct STEP 7 communication blocks before commissioning.
BEFORE YOU BUY
Confirm the installed serial connection
ACTUAL APPLICATIONS
Where 6ES7541-1AB00-0AB0 supports serial automation
The following uses follow the communication functions documented by Siemens. The partner interface, user program and machine requirements determine the final implementation.
-
01 · PROCESS DATA
Polling serial device registers
Use the Modbus RTU master instructions to request process values or operating states from compatible serial devices. Verify slave addresses, register definitions and response handling in the control program. -
02 · DRIVE COMMUNICATION
Reading and changing drive parameters
Siemens documents USS instructions for drive control and parameter access through the CM. Integrators can exchange drive commands and parameter values when the drive interface and application sequence are correctly configured. -
03 · MACHINE DATA EXCHANGE
Transferring custom serial telegrams
The documented Freeport send and receive functions exchange application-specific messages with another controller or computer. Define frame boundaries, timing and data interpretation on both sides before enabling the machine interface.
Technical specifications for 6ES7541-1AB00-0AB0
-
Product Model6ES7541-1AB00-0AB0
-
Product ParametersRS422/485 Serial Communication Module
-
In stock1 unit
-
ManufacturerSiemens
-
Electrical interfaceIsolated RS422 / RS485 differential serial interface
-
Transmission rate300 bit/s to 115.2 kbit/s
-
Cable length by rate250 m at 115.2 kbit/s; 500 m at 38.4 kbit/s; 1200 m up to 19.2 kbit/s
-
Front connector15-pin D-sub female connector with screw lock
-
ProtocolsFreeport, 3964(R), Modbus RTU; USS through STEP 7 instructions
-
Maximum telegram length4 kbyte for Freeport and 3964(R)
-
Receive buffer8 kbyte; up to 255 telegrams
-
Address allocation8 input bytes; no output address area required
-
Backplane power0.65 W; typical power loss 0.6 W
-
Operating temperatureHorizontal 0 to 60 °C; vertical 0 to 40 °C
View all additional
Alternative Names
6ES7541-1AB00-0AB0
CM PtP RS422/485 HF
SIMATIC S7-1500 Serial Communication Module
SYSTEM & REPLACEMENT CHECK
Information needed before ordering
Three direct checks to secure your system integration and minimize ordering risks.
Information
System integration
Replacement check
Manuals & support
SIMATIC S7-1500 SERIAL ARCHITECTURE
Match the serial protocol to the physical port
Siemens 6ES7541-1AB00-0AB0 can operate centrally with an S7-1500 CPU or in a documented ET 200MP station through IM 155-5. Engineering uses STEP 7 TIA Portal V12 or later, or the supported STEP 7 and GSD arrangement.
The isolated X27 socket supports two-wire RS485 or four-wire RS422. Match the communication partner, signal polarity, baud rate, character format and selected Freeport, 3964(R), Modbus or USS implementation.
Communication instructions must execute cyclically in the user program. Preserve the assigned hardware ID, evaluate block status and module diagnostics, and follow Siemens shielding and grounding instructions.
Features:
- Exact Siemens order code: 6ES7541-1AB00-0AB0
- CM PtP RS422/485 HF with 15-pin X27 socket
- Check protocol settings and cyclic communication blocks
The Siemens 6ES7541-1AB00-0AB0 CM PtP RS422/485 HF requires its port wiring, protocol, cable length and STEP 7 configuration to be checked before system integration and commissioning.
INTERCHANGEABILITY
Verify the complete replacement identity before commissioning
Siemens lists 6ES7541-1AB00-0AB0 as a spare part and identifies 6ES7541-1AB01-0AB0 as its successor. Keep the requested order number distinct; a catalog successor still requires project and compatibility review.
Before exchanging the CM, save the port configuration and user program, identify each X27 conductor and shield termination, and record the hardware ID used by the communication instructions.
After replacement, verify station diagnostics and test actual send/receive traffic with the partner. Review receive-buffer behavior during CPU startup so retained telegrams cannot be mistaken for new process data.
Features:
- Match the complete 6ES7541-1AB00-0AB0 order code
- Preserve X27 wiring, shielding and protocol settings
- Validate hardware ID and restart behavior
The Siemens 6ES7541-1AB00-0AB0 CM PtP RS422/485 HF requires replacement verification of port identity, serial wiring, communication blocks and partner responses before commissioning.
DOCUMENTATION STATUS
Browse the Manuals, Datasheets, Official Documents, Links
Important Notice: Official documents are provided through manufacturer links. Accessories, manuals, cables, calibration data, software, certificates, and other items are not included with this equipment unless listed in the stock item description.
Features:
- Available Siemens document references are confirmed before order
- Software licensing and project backups remain the customer's responsibility
- Accessories are supplied only when listed in the quotation
Documentation for the Siemens 6ES7541-1AB00-0AB0 CM PtP RS422/485 HF must match the complete order number and installed serial project; confirm manual availability in the written quotation.
Also searched as
Important notice
Manuals, software, firmware, cables, calibration data and accessories are included only when listed in the quotation. AMIKON is an independent supplier and is not affiliated with or authorised by the manufacturer.
This content has been produced using multiple sources. Takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
BUYER INFORMATION
Commercial terms without hidden steps
Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
-
01
Shipping & delivery
-
DispatchEligible stock: same / next day
-
CarriersDHL, FedEx or UPS
-
Ship fromXiamen, China
-
Packed size14.9 × 15.2 × 4.7 cm
-
Shipping weightApprox. 0.22 kg
-
-
02
Payment & customs
-
PaymentBank transfer (T/T)
-
CurrenciesUSD · EUR · GBP · RMB
-
Credit cardsNot accepted
-
HS reference8517623990
-
OriginGermany
-
-
03
Warranty & returns
-
Warranty12 months from AMIKON
-
InspectionLabel, condition and packing checks
-
ReturnsPrior RMA authorisation required
-
CompatibilityConfirm before order
-
OEM warrantyDoes not apply
-
Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
-
Part checked
Full suffix recorded -
Condition checked
Label and appearance -
Packing checked
Antistatic protection -
Tracking supplied
Established couriers -
Sandy Lin
Dedicated account manager · 15+ years
FREQUENTLY ASKED QUESTIONS
Questions buyers ask about 6ES7541-1AB00-0AB0
Direct answers about identity, compatibility, stock, warranty, payment and shipping.
-
Can a 1,200 m serial line run at 115.2 kbit/s?
No. Siemens specifies 250 m at 115.2 kbit/s, 500 m at 38.4 kbit/s and 1,200 m up to 19.2 kbit/s. Select the rate from the actual cable route rather than combining the two maximum ratings. -
Should the cable shield be connected to X27 pin 8?
No. Pin 8 is isolated functional GND and must be connected at both ends. Siemens warns against connecting the shield to GND; use shielded connector casings with broad shield contact and the prescribed grounding rail. -
What happens to received telegrams when the CPU enters STOP?
Ongoing transmissions are aborted, but telegrams already in the receive buffer remain. The configuration can clear that buffer automatically during CPU startup; review this setting before restarting a process that must reject old messages. -
Is USS drive communication available without extra serial hardware?
The CM supports USS through STEP 7 instructions, including USS_Port_Scan, USS_Drive_Control and parameter read/write instructions. The application must call the appropriate blocks and use compatible RS485 drive wiring; selecting the module alone does not implement the drive sequence. -
Why does moving this CM to another project affect the communication block identifier?
STEP 7 assigns the module hardware identifier during device configuration. S7-1500 communication instructions use that HW ID, whereas an S7-300/400 arrangement identifies the CM by its input start address. Recheck the block parameters after moving or rebuilding the station. -
RXD flashes, but the CPU receives no application data. What should be checked?
RXD indicates activity at the interface, not successful delivery to the user program. Check that the receiving instruction is called cyclically, evaluate its status, and verify the selected protocol and frame settings against the communication partner. -
Can an MRO buyer order the RS232 HF version for an installed RS422/485 HF port?
No automatic substitution should be made. This exact order number has the RS422/485 differential interface and a 15-pin X27 socket. Match the existing interface, pinout, cable and protocol; a different electrical serial standard is not an equivalent spare. -
How many devices can be addressed as a Modbus RTU master?
The exact-article Siemens data specifies a maximum of 32 devices for the master configuration. Plan the bus wiring and unique addresses within that limit, and verify each partner’s register map and communication settings.
READY TO VERIFY YOUR PART?
Get a 6ES7541-1AB00-0AB0 quote with price, lead time and revision check.
Trusted by 5,000+ plants worldwide | Backed by our vast inventory of top-tier control parts, drives and servo motors, fast shipments are dispatched to cover your urgent needs. ABOUT US >>
Disclaimer: Amikon Limited sells new and surplus products and develops channels for purchasing such products. Amikon Limited is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because Amikon Limited is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. Amikon Limited is not an authorized distributor, dealer, or representative of the products displayed on this website. All product names, trademarks, brands, and logos used on this website are the property of their respective owners. The description, explanation, or sale of products with these names, trademarks, brands, and logos is for identification purposes only and is not intended to indicate any association with or authorization from any rights holder.
Product
Product Browsing History
- Q&A
- Policies How to order Part status information Shipping Method Return Policy Warranty Policy Payment Terms Email Marketing Policy VAT and Import Information
- Asset Recovery
- We Buy Your Equipment. Industry Cases Amikong News Technical Resources Why choose us FAQs
- Registered Address
-
32D Guomao Building, No.388, Hubin south Road, Siming district, Xiamen,Fujian, China
