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Siemens 6ES7151-7AA00-0AB0 — PLC Communication Modules

Siemens 6ES7151-7AA00-0AB0 SFB Module RS 485 Active

MPN6ES7151-7AA00-0AB0

Siemens 6ES7151-7AA00-0AB0, SIMATIC SFB, RS 485 interface, 64 byte each inputs/outputs, 119.5 x 60 x 75 mm, 200 g.

$249.97Ref. price · indicative, final on quote

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Siemens 6ES7151-7AA00-0AB0 datasheet (PDF)

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

Specifications

6ES7151-7AA00-0AB0 — Identification
Parameter	Value
Firmware version	V1.0.0
Expandable	No
Hardware functional status (FS)	02

6ES7151-7AA00-0AB0 — Communication
Parameter	Value
Transmission rate, max.	12 Mbit/s

6ES7151-7AA00-0AB0 — Electrical
Parameter	Value
Rated value (DC)	24 V
Permissible range, upper limit (DC)	28.8 V
Permissible range, lower limit (DC)	20.4 V
Power loss (typ.)	3.3 W
Reverse polarity protection	Yes
Isolation test voltage	500 V DC

6ES7151-7AA00-0AB0 — I/O
Parameter	Value
Input data area	64 byte
Output data area	64 byte

6ES7151-7AA00-0AB0 — Environmental
Parameter	Value
Operating temperature, max.	60 °C
Operating temperature, min.	0 °C

6ES7151-7AA00-0AB0 — Mechanical
Parameter	Value
Width	60 mm
Height	119.5 mm
Depth	75 mm
Type	SFB

Product details

Siemens 6ES7151-7AA00-0AB0 is an SFB-type module with a single integrated RS 485 interface — no MPI, so plan your network accordingly. It handles 64 bytes of input data and 64 bytes of output data, enough for a medium-sized distributed I/O station. STEP 7 is supported for configuration, and forcing is built in, letting you lock outputs during commissioning without a PLC change. SCL programming is also on the table, which means you can write structured text logic for this module if your application needs it.

Debugging features for on-site work

Single-step execution, software clock, and adjustable timers (1 ms to 6 000 ms) aid on-site debugging. Integrated memory of 24 kbyte holds the user program; max. 8 kbyte per block.