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Siemens 6ES7155-6AU00-0CN0 — PLC Communication Modules

Siemens 6ES7155-6AU00-0CN0 PROFINET IM, IRT, 2 ports

MPN6ES7155-6AU00-0CN0

Siemens ET 200SP PROFINET interface module, 2 ports, IRT, MRP, 100 Mbit/s, 24 V DC, 2.4 W, I2t 0.09 A²·s.

$301.63Ref. price · indicative, final on quote

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Siemens 6ES7155-6AU00-0CN0 datasheet (PDF)

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

6ES7155-6AU00-0CN0 — Identification
Parameter	Value
Configurable from STEP 7 TIA Portal version	V13 SP1 Update 6
Firmware version	V3.3

6ES7155-6AU00-0CN0 — Communication
Parameter	Value
TCP/IP support	Yes
I&M data support	Yes; I&M0 to I&M4
Diagnostics function	Yes
Isochronous mode	Yes

6ES7155-6AU00-0CN0 — Electrical
Parameter	Value
Rated value (DC)	24 V
Permissible range, upper limit (DC)	28.8 V
Permissible range, lower limit (DC)	19.2 V
Current consumption, max.	700 mA
Power loss (typ.)	2.4 W
Reverse polarity protection	Yes
Isolation test voltage	707 V DC between supply voltage and electronics (type test); 1 500 V AC between Ethernet and electronics (type test)

6ES7155-6AU00-0CN0 — Environmental
Parameter	Value
Operating temperature, horizontal install, min.	0 °C
Operating temperature, horizontal install, max.	60 °C
Operating temperature, vertical install, max.	50 °C
Operating temperature, vertical install, min.	0 °C

6ES7155-6AU00-0CN0 — Mechanical
Parameter	Value
Width	50 mm
Height	117 mm
Depth	74 mm

Product details

The Siemens 6ES7155-6AU00-0CN0 is the PROFINET IO interface module for the ET 200SP distributed I/O system. It provides two RJ45 ports with an integrated switch, supports PROFINET IRT with a high-performance mode enabling cycle times down to 125 µs in 125 µs frame increments, and handles media redundancy via MRP. The module runs on 24 V DC and draws 2.4 W typical. For applications requiring deterministic motion control or isochronous data exchange, the IRT capability with 1 µs jitter makes this interface suited for synchronized axes in multi-drive cells. The I2t rating of 0.09 A²·s defines the surge current capability at the power input — a number to match when sizing the upstream 24 V DC circuit breaker or fuse.