The Siemens 6ES7541-1AB00-0AB0 is a point-to-point (PtP) serial communications module for the S7-1500 automation system. It occupies one standard slot (35 mm wide) and requires 127 mm of cabinet depth. Power is drawn from the backplane bus at 0.6 W typ. Transmission rate reaches 115.2 kbit/s with support for 7 or 8 data bits, 1 or 2 stop bits, and configurable parity. The extended address area (1 to 65535) and 4-wire full-duplex connection make it suitable for multi-drop RS-422 networks. An 8 kbyte telegram buffer handles larger messages without host intervention.
Siemens 6ES7541-1AB00-0AB0 CM PtP Module, 115.2 kbit/s, S7-1
MPN6ES7541-1AB00-0AB0
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Siemens SIMATIC S7-1500, CM PtP 6ES7541-1AB00-0AB0, serial interface module, transmission rate 115.2 kbit/s, diagnostic alarm, wire-break detection, 35 x 147 x 127 mm.
$645.16 – $1,094.19Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Configurable from STEP 7 TIA Portal version | V12 / V12 |
| Parameter | Value |
|---|---|
| Transmission rate, max. | 115.2 kbit/s |
| I&M data support | Yes; I&M 0 |
| Diagnostics function | Yes |
| Parameter | Value |
|---|---|
| Power loss (typ.) | 0.6 W |
| Isolation test voltage | 707 V DC (type test) |
| Parameter | Value |
|---|---|
| Input data area | 8 byte |
| Parameter | Value |
|---|---|
| Operating temperature, horizontal install, min. | 0 °C |
| Operating temperature, horizontal install, max. | 60 °C |
| Operating temperature, vertical install, max. | 40 °C |
| Operating temperature, vertical install, min. | 0 °C |
| Parameter | Value |
|---|---|
| Width | 35 mm |
| Height | 147 mm |
| Depth | 127 mm |
Product details
Frequently asked questions
What are the module dimensions?
Width 35 mm, height 147 mm, depth 127 mm. This fits one slot on an S7-1500 rail.
Can the 6ES7541-1AB00-0AB0 replace an ET 200SP CM PtP module like 6ES7137-6AA01-0BA0?
No. The 6ES7541-1AB00-0AB0 is designed for the S7-1500 platform (mounting rail and backplane bus). ET 200SP modules require a different base unit and bus coupler; they are not mechanically or electrically interchangeable.
MPN
6ES7541-1AB00-0AB0