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Siemens 6AG1540-1AD01-7AA0 — PLCs (Programmable Logic Controllers)

Siemens 6AG1540-1AD01 SIPLUS CM PtP RS232 ET 200SP -40 to +70°C | aoctrl

MPN6AG1540-1AD01-7AA0
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Siemens SIPLUS CM PtP RS232 BA, 6AG1540-1AD01-7AA0, conformal coating, -40..70°C, 19200 bps, 9-pin D-sub.

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

Specifications

6AG1540-1AD01-7AA0 — Specifications
ParameterValue
Group codeR141
Product group4657
Product classA: Standard product which is a stock item could be returned within the returns guidelines/period.
SeriesSIPLUS CM PtP
Export control regulationsAL : N / ECCN : 9N9999
Compliance with the substance restrictions according to RoHS directiveSince: 29-02-24

Product details

The Siemens 6AG1540-1AD01-7AA0 is a SIPLUS version of the S7-1500 CM PtP RS232 communications module. The base board is the same as the 6ES7540-1AD01-0AA0, meaning it drops into the same slot and uses the same RS-232 wiring — 9-pin D-sub, Freeport, 3964(R), USS up to 19200 bps. If you're replacing a standard CM in a rough environment, this is a drop-in swap that won't need new cable tails.

What makes this one different

The SIPLUS variant adds conformal coating and covers -40 to +70 °C. Same RS-232 performance, same mounting.

Integration note

Mounts in any S7-1500 slot; the 9-pin D-sub is male, RS-232 only. No fieldbus on this module — it's point-to-point serial. Protocols (Freeport, 3964(R), USS) are set in the hardware configuration of TIA Portal. Baud rate maxes at 19200, so plan your data volume accordingly. The conformal coating doesn't change the terminal layout; you can treat the wiring diagram from the standard CM PtP as identical.

Frequently asked questions

What is the closest pin-compatible alternative to the 6AG1540-1AD01-7AA0?

The standard version 6ES7540-1AD01-0AA0 shares the same PCB design and RS-232 interface. The SIPLUS variant adds conformal coating and extends the ambient range to -40..+70°C. If your environment doesn't need the coating or wider temperature, that's a direct alternative.

What is the group code and product group for 6AG1540-1AD01-7AA0?

Group code R141; product group 4657.

MPN
6AG1540-1AD01-7AA0