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Siemens 6ES7277-0AA22-0XA0 — PLC Communication Modules

Siemens 6ES7277-0AA22-0XA0 PROFIBUS DP Slave Module

MPN6ES7277-0AA22-0XA0
Active

Siemens SIMATIC S7-200, PROFIBUS DP Slave module, 1 RS-485 interface, 9.6 kbit/s to 12 Mbit/s, 24 V DC, 62 x 71.2 x 80 mm.

$267.00Ref. price · indicative, final on quote
Siemens 6ES7277-0AA22-0XA0 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

6ES7277-0AA22-0XA0 — Communication
ParameterValue
Transmission rate, max.12 Mbit/s; 9,6 / 19,2 / 45,45 / 93,75 / 187,5 / 500 kbit/s; 1 / 1,5 / 3 / 6 / 12 Mbit/s
6ES7277-0AA22-0XA0 — Electrical
ParameterValue
Rated value (DC)24 V
Permissible range, upper limit (DC)28.8 V
Permissible range, lower limit (DC)20.4 V
Power loss (typ.)2.5 W
Isolation test voltagebetween external signal and control logic: 500 V AC (galvanic); 5 V DC interface: Isolation between output and module as well as 24 V DC supply voltage: 500 V AC (max. 1 min.); 24 V DC interface: Isolation no; same circuit as 24 V DC supply voltage
6ES7277-0AA22-0XA0 — Mechanical
ParameterValue
Width71.2 mm
Height80 mm
Depth62 mm

Product details

PROFIBUS DP slave for S7-200 racks

The Siemens 6ES7277-0AA22-0XA0 is a PROFIBUS DP slave module that plugs into the S7-200 expansion bus, giving the CPU a fieldbus connection to a DP master. It supports both PROFIBUS DP and MPI protocols, with automatic baud rate detection from 9.6 kbit/s up to 12 Mbit/s.

Bus topology and node limits

A single segment supports up to 32 stations; the full network can address 126 nodes, of which up to 99 can be EM 277 modules. The RS-485 interface handles cable runs from 100 m to 1200 m, with the maximum distance depending on the selected transmission speed. Node addresses are set via rotary switches on the module face, covering 0 to 99. One connection is reserved for OP communication and one for PG communication, leaving up to four free for data exchange with the DP master.

Frequently asked questions

What is the 6ES7277-0AA22-0XA0 used for?

It connects an S7-200 CPU to a PROFIBUS DP network as a slave device, allowing the PLC to exchange data with a DP master such as an S7-300/400 or a PC-based controller.

Where can I buy the 6ES7277-0AA22-0XA0?

Submit a quote request for current availability and pricing.

What is the maximum transmission rate of the 6ES7277-0AA22-0XA0?

The module supports baud rates from 9.6 kbit/s up to 12 Mbit/s, with automatic detection of the network speed.

MPN
6ES7277-0AA22-0XA0