Skip to main content
Log in
Siemens 6AG1241-1CH31-2XB0 — PLC Communication Modules

6AG1241-1CH31-2XB0 SIPLUS S7-1200 CM 1241 RS-485, -40..70°C

MPN6AG1241-1CH31-2XB0

Siemens SIPLUS S7-1200 CM 1241, 6AG1241-1CH31-2XB0, RS-422/485, conformal coating, -40 to +70 °C, 1 RS-485 port, USS/ASCII library functions.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

6AG1241-1CH31-2XB0 — Electrical
ParameterValue
Rated value (DC)24 V
Permissible range, upper limit (DC)28.8 V
Permissible range, lower limit (DC)20.4 V
Current consumption, max.240 mA; From L5+; logic
Power loss (typ.)1.2 W
6AG1241-1CH31-2XB0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-40 °C
6AG1241-1CH31-2XB0 — Mechanical
ParameterValue
Width30 mm
Height100 mm
Depth75 mm
6AG1241-1CH31-2XB0 — Other specifications
ParameterValue
USSYes; Available as library function
ASCIIYes; Available as library function
Weight, approx.155 g
Fall height, max.0.3 m; five times, in product package
Cable length, max.1 000 m
Interfaces (bus type)RS 422 / 485 (X.27)
Number of interfaces1
Ambient air temperature-barometric pressure-altitudeTmin ... Tmax at 1 080 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)

Product details

The 6AG1241-1CH31-2XB0 is a SIPLUS version of the S7-1200 CM 1241 communications module, based on 6ES7241-1CH31-0XB0 with conformal coating and extended temperature range. It provides one RS-422/485 port (D-sub 9-pin male) for Freeport, USS, or ASCII communication via library function blocks — the standard choice for drive links or serial instrument chains on a 1200 CPU.

The module draws 240 mA at 24 VDC from the backplane bus (L5+ logic) — a light load that leaves headroom for additional I/O on the same CPU power budget. Typical power loss is 1.2 W, so no derating curve worries in a crowded cabinet. USS and ASCII are supported as library functions, not built-in hardware — you add the function block in TIA Portal. No extra protocol charge; it's part of the standard library.

Sourcing and lifecycle standpoint

No direct replacement announced — this is the current ruggedized version for the CM 1241 RS-485 slot. If you're holding a 6ES7241-1CH31-0XB0, this is the drop-in conformal-coated upgrade.

Frequently asked questions

What protocols does the CM 1241 support?

It supports Freeport, USS, and ASCII communication via library function blocks in TIA Portal.

Will this module drop into a panel originally built with a standard S7-1200 CM 1241 (6ES7241-1CH31-0XB0)?

Yes, the 6AG1241-1CH31-2XB0 is the SIPLUS conformal-coated variant of that module — same footprint, same connector, same mounting.

MPN
6AG1241-1CH31-2XB0