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Siemens 6AG1151-7AA21-2AB0 — PLCs (Programmable Logic Controllers)

6AG1151-7AA21-2AB0 Siemens S7-300 DP Master, 128 kB, CFC/FBD

MPN6AG1151-7AA21-2AB0

Siemens S7-300 SFB DP master module, order code 6AG1151-7AA21-2AB0, integrated 128 kbyte memory, DPV1 RS 485 isolated, CFC/FBD/LAD/SCL/STL/GRAPH programming.

$1,084.58Ref. price · indicative, final on quote
Siemens 6AG1151-7AA21-2AB0 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

6AG1151-7AA21-2AB0 — Processor & Memory
ParameterValue
Execution time, bit operations (typ.)0.06 µs
Execution time, word operations (typ.)0.12 µs
Execution time, floating-point arithmetic (typ.)0.59 µs
Size, max.256 byte
6AG1151-7AA21-2AB0 — I/O
ParameterValue
ExpandableNo
Input data area244 byte
Output data area244 byte
6AG1151-7AA21-2AB0 — Programming
ParameterValue
Programming language: FBDYes
Programming language: LADYes
Programming language: SCLYes; Optional
6AG1151-7AA21-2AB0 — Electrical
ParameterValue
Rated value (DC)24 V
Permissible range, lower limit (DC)19.2 V
Permissible range, upper limit (DC)28.8 V
Power loss (typ.)4.2 W
6AG1151-7AA21-2AB0 — Environmental
ParameterValue
Installation altitude, max.5 000 m
Temperature, min.-25 °C; = Tmin
Temperature, max.60 °C; = Tmax
Ambient temperature vs. altitude/pressure deratingTmin ... Tmax at 1 140 hPa ... 795 hPa (-1 000 m ... +2 000 m) // Tmin ... (Tmax - 10 K) at 795 hPa ... 658 hPa (+2 000 m ... +3 500 m) // Tmin ... (Tmax -20 K) at 658 hPa ... 540 hPa (+3 500 m ... +5 000 m)
6AG1151-7AA21-2AB0 — Mechanical
ParameterValue
Width60 mm; DP master module: 35 mm
Height119.5 mm
Depth75 mm
Weight (approx.)200 g; DP master module: Approx. 100 g
6AG1151-7AA21-2AB0 — Communication
ParameterValue
Interface typeExternal interface via master module 6ES7138-4HA00-0AB0

Product details

Programming language flexibility

The 6AG1151-7AA21-2AB0: This module runs programs created in LAD, FBD, STL, and optionally CFC, SCL, and GRAPH. I2t rating of 0.09 A²·s applies to the module's internal protection; factor that into your panel's short-circuit coordination if the DP master shares a bus with higher-energy devices.

Mechanical fit and fieldbus integration

Backup time is 6 weeks at 40 °C ambient, typically. That matters if the panel loses power during a turnaround gap — your process data stays retentive through the outage window.

CE marked. The latest GSD file is published on the Siemens PROFIBUS website, so integrating into a DP network is straightforward on the configuration side.

Frequently asked questions

What programming languages does the 6AG1151-7AA21-2AB0 support?

It supports LAD, FBD, and STL directly, with CFC, SCL, and GRAPH available as optional additions.

Does the module have CE approval?

Yes, it carries a CE mark.

What is the backup time for retentive data?

Typically 6 weeks at 40 °C ambient. After that, retentive data must be restored on restart.

MPN
6AG1151-7AA21-2AB0