Siemens

CMR2040 - LOGO! LTE Communication Module | Siemens

Teilenummer: CMR2040 ✓ Aktiv
Auf Lager Versand in 1–3 Werktagen
Yes (synchronization + forwarding to LOGO!) Speed
Ab $392 USD / Stück
MOQ: 1 |
Preis aktualisiert: 2026-10-20
Mengenpreise
Menge Stückpreis Gesamt
1 $485 $485,00
10 $460 $4.600,00
50 $438 $21.900,00
100 $415 $41.500,00
250 $392 $98.000,00
ℹ️ Alle Preise sind in USD

CMR2040 Übersicht

The Siemens LOGO! CMR2040 (full order code 6GK7142-7EX00-0AX0) is a cellular communication module designed to connect a LOGO! 0BA8 series logic module to 4G LTE mobile networks for remote monitoring, alerting, and control. It provides one RJ45 industrial Ethernet port for the upstream LOGO! 8 connection, two digital inputs (2xDI) and two digital outputs (2xDO) for local I/O, and a SIM card slot for cellular subscription. The CMR2040 acts as a network bridge: it reads and writes LOGO! variables remotely, sends and receives SMS messages, dispatches emails, and reports its position via integrated GPS, all of which are configured through a built-in web interface.

A cellular communication module is a hardware accessory that adds wireless wide-area-network (WWAN) connectivity to an industrial controller that natively has only local I/O or Ethernet. In the PLC hierarchy, modules like the CMR2040 sit alongside the CPU and I/O expansion modules and are classified as PLC communication modules (PLC add-ons). They enable remote telemetry, alarm routing, and cloud/SCADA bridging that would otherwise require a separate gateway PC or router. The CMR2040 is specifically engineered for the LOGO! 8 (0BA8) family, and snaps onto the controller's left-side expansion bus without external wiring.

Key features include SMS command handling for status queries and setpoint writes, real-time clock time synchronization and forwarding to the connected LOGO!, GPS-based position detection for mobile or remote assets, and read/write access to LOGO! variables from any subscribed mobile phone. Configuration and diagnostics are performed through a built-in web server reached over the Ethernet port. Two digital inputs and two digital outputs are exposed for direct local wiring of sensors and actuators, allowing the CMR2040 to function as a small remote terminal unit (RTU) even when the host LOGO! is offline.

Typical applications include remote pump-station monitoring, lift-station SCADA reporting, mobile equipment telemetry on trucks and generators, agricultural irrigation control, and alarm routing from unmanned sites. The integrated GPS makes the module well suited to fleet or container tracking where the host LOGO! is logging operational parameters that need to be geo-tagged.

When deploying the CMR2040, verify that the national LTE bands supported by the module match the operator in the target country before purchase, and ensure the SIM card is provisioned for SMS and packet data. The module is intended for indoor cabinet mounting within the LOGO! 8 system; an external antenna is required for cellular and GPS signals.

Drop-in-Alternativen für CMR2040 – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.

Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:

LOGO! CMR2020

✅ Drop-In
📦 LOGO! 8 expansion module
same LOGO! 8 expansion footprint and bus protocol, but uses 2G/GSM instead of 4G/LTE (-generation step)

📋 Referenzalternative (nicht im Katalog)

CMR2040 Spezifikationen (herstellerveröffentlicht)

Manufacturer Siemens
Order Code (Full) 6GK7142-7EX00-0AX0
Product Type LOGO! communication module (cellular + Ethernet)
Compatible LOGO! Series LOGO! 8 (0BA8)
Cellular Network LTE (4G) - national approvals required per country
Industrial Ethernet Port 1 x RJ45 (to LOGO! 8)
Digital Inputs 2 x DI
Digital Outputs 2 x DO
SIM Card Slot Yes (subscriber on mobile network)
SMS Send/Receive Yes (command, alarm, status)
Email Dispatch Yes
GPS Position Detection Yes (integrated)
Real-Time Clock Sync Yes (synchronization + forwarding to LOGO!)
Variable Read/Write Access Yes (LOGO! variables)
Configuration / Diagnostics Web interface (browser-based)
Mounting LOGO! 8 left-side expansion bus
Antenna External antenna required (cellular + GPS)

CMR2040 Schnittstellen & Anschlüsse

CMR2040 bietet die folgenden, vom Hersteller veröffentlichten Schnittstellen und Anschlüsse: Ethernet. Pinbelegung der Erweiterungsheader, Nummerierung der Anschlüsse und elektrische Grenzwerte sind in der Herstellerdokumentation definiert.

Ethernet 1 x RJ45 (to LOGO! 8)

Siehe die Herstellerdokumentation für die vollständige Pinbelegung der Erweiterungsleiste und die Nummerierung der Steckverbinder-Pins.

Typische Anwendungen

CMR2040 ist geeignet für 6 Anwendungs: Remote Pump Station Monitoring, Lift Station SCADA Reporting, Mobile Equipment Telemetry, Agricultural Irrigation Control, Unmanned Site Alarm Routing, Container and Asset Tracking.

🏭

Remote Pump Station Monitoring

The Siemens CMR2040 provides unattended pump-station telemetry over LTE for utilities operating widely distributed assets. With 2 digital inputs it can monitor float switches, flow sensors, and intrusion contacts, while the 2 digital outputs can start/stop a backup pump or open a discharge valve. SMS dispatch alerts operators to high-level alarms, and read/write access to LOGO! variables lets them remotely change setpoints (pump start level, run hours) from a mobile phone - eliminating the need for a SCADA PC at every site.

🏭

Lift Station SCADA Reporting

Wastewater lift stations use the CMR2040 to push level, runtime, and fault data to a central SCADA system over LTE, avoiding the recurring cost of dedicated radio or cellular SCADA gateways. The module's email dispatch function sends batched daily reports, while SMS provides instant alarms on high-level and pump-failure conditions. The integrated GPS lets the utility map and verify the location of every lift station in its network, simplifying regulatory reporting and field-crew dispatch.

🚗

Mobile Equipment Telemetry

Mobile and relocatable equipment such as truck-mounted generators, well-service rigs, and rental air compressors benefits from the CMR2040's combined LTE + GPS connectivity. The host LOGO! 8 logs operational parameters (engine hours, fuel level, fault codes) and the CMR2040 publishes them via SMS and email to the operations centre. GPS position detection allows fleet managers to track equipment location in real time and recover stolen or misplaced assets.

🌐

Agricultural Irrigation Control

The CMR2040 enables remote start/stop and status reporting of irrigation pumps, valves, and filter stations across large farms where running control cables is impractical. Operators send an SMS command to open a sector valve, and the CMR2040 toggles one of its 2 digital outputs and replies with confirmation. Time synchronization from the cellular network keeps irrigation schedules accurate even after long power-off periods, eliminating clock-drift issues common in standalone controllers.

🎥

Unmanned Site Alarm Routing

Telecom base stations, electrical substations, and remote warehouses use the CMR2040 to forward intrusion, fire, and equipment alarms to security staff via SMS and email. The 2 digital inputs accept dry contacts from PIR sensors, smoke detectors, and door switches, while the 2 digital outputs can trigger local sirens or strobes. Configuration through the built-in web interface lets installers define alarm recipients and escalation rules without custom programming tools.

✈️

Container and Asset Tracking

Shipping containers, portable substation skids, and construction-site tool containers use the CMR2040 plus LOGO! 8 combination as a low-power tracking and telemetry node. The integrated GPS reports position at configurable intervals, while the 2 digital inputs can monitor door-open events and temperature alarms. Operators query the LOGO! variables by SMS to read internal state, or receive automatic SMS/email pings when the container moves outside a defined geo-fence.

Zusammenfassung der empfohlenen Produkte

LOGO! 8 12/24 RCE Host LOGO! 8 base module that the CMR2040 attaches to Verwendet in: Remote Pump Station Monitoring, Mobile Equipment Telemetry, Container and Asset Tracking LOGO! Power 24 V 24 V power supply module for the LOGO! 8 + CMR2040 stack Verwendet in: Remote Pump Station Monitoring LOGO! 8 24 RCE LOGO! 8 base module hosting the CMR2040 Verwendet in: Lift Station SCADA Reporting, Agricultural Irrigation Control LOGO! TDE Optional text display for local status at the lift station Verwendet in: Lift Station SCADA Reporting SIPLUS LOGO! Power Wide-temperature power supply for vehicle-mounted cabinets Verwendet in: Mobile Equipment Telemetry LOGO! AM2 RTD Analog input module for soil-moisture and temperature sensors Verwendet in: Agricultural Irrigation Control LOGO! 8 230 RCE LOGO! 8 base module for mains-powered sites Verwendet in: Unmanned Site Alarm Routing LOGO! Contact 24 Solid-state relay output module for siren control Verwendet in: Unmanned Site Alarm Routing LOGO! Power 12 V 12 V power supply for solar/battery-fed sites Verwendet in: Container and Asset Tracking
What is the Siemens LOGO! CMR2040 used for?
The CMR2040 (6GK7142-7EX00-0AX0) is a Siemens cellular communication module that connects a LOGO! 8 (0BA8) controller to LTE mobile networks for remote monitoring and control. According to the manufacturer datasheet, it provides 1 RJ45 Ethernet port to the LOGO!, 2 digital inputs, 2 digital outputs, SMS send/receive, email dispatch, GPS position detection, and time synchronization - allowing operators to read/write LOGO! variables from a mobile phone and receive alarms from unmanned sites.
What is the full Siemens order code for the CMR2040?
The full Siemens order code for the CMR2040 communication module is 6GK7142-7EX00-0AX0. This is the complete MLFB designation used on invoices, shipping documents, and distributor listings. The short product name 'CMR2040' is a marketing/trade designation; the 6GK7142-7EX00-0AX0 code must be used for procurement and warranty registration with Siemens.
Which LOGO! controller versions does the CMR2040 support?
The CMR2040 is designed to connect LOGO! 0BA8 series (commonly called LOGO! 8) controllers to an LTE cellular network. It is not compatible with earlier LOGO! generations such as 0BA6 or 0BA7. The module snaps onto the left-side expansion bus of the LOGO! 8 base module and uses the LOGO!'s Ethernet port internally.
Does the CMR2040 support SMS and email communication?
Yes. The CMR2040 supports both SMS dispatch/receiving of text messages and email dispatch, per the Siemens datasheet BA_LOGO-CMR2020-CMR2040. SMS is used for command-and-control interaction with operators' mobile phones, while email is used for automated alarm and status notifications to plant personnel and SCADA recipients.
What digital I/O does the CMR2040 provide?
The CMR2040 provides 2 digital inputs (2xDI) and 2 digital outputs (2xDO) on its own terminal block, in addition to its communication functions. These local I/O allow the CMR2040 to monitor sensors and drive actuators directly, so it can act as a small standalone remote terminal unit (RTU) even when the host LOGO! 8 is offline or unreachable.
How is the CMR2040 configured and diagnosed?
The CMR2040 is configured and diagnosed via a built-in web interface, accessed through its Ethernet port using a standard browser. There is no separate Siemens software tool required for routine parameter changes - operators log into the module's IP address and adjust network parameters, SMS routing rules, email recipients, and GPS reporting intervals from the web UI.
Does the CMR2040 include GPS?
Yes, the CMR2040 includes integrated GPS for position detection. This makes the module suitable for mobile or relocatable assets such as truck-mounted generators, irrigation skids, and remote pumping stations where the GPS coordinates can be embedded in SMS or email alerts and used for fleet tracking.
What cellular technology does the CMR2040 use?
The CMR2040 uses 4G LTE cellular technology to communicate over mobile networks. Siemens explicitly notes that national LTE approvals vary by country - the module must be ordered for the specific country of operation to remain compliant with local radio regulations and to operate on the bands supported by the local carrier.
How much does the CMR2040 cost?
The Siemens LOGO! CMR2040 (6GK7142-7EX00-0AX0) is priced at approximately USD 485 per unit at quantity 1, as of 2026-10-20. Volume pricing drops to roughly USD 392 at 250 units. Pricing varies by distributor and region; Siemens authorized distributors such as Automation24 and Kempston Controls typically carry stock for fast delivery.
Where can I buy the Siemens CMR2040 online?
The CMR2040 can be purchased from Siemens authorized industrial automation distributors including Automation24, Kempston Controls, mme-ae, PLC-City, and PLCskit, with most advertising in-stock availability for fast shipping. It is also listed on Electric Automation Network and Nexinstrument. For best warranty coverage, purchase from a Siemens authorized channel rather than independent brokers.
What is the lead time for the CMR2040?
Lead time for the CMR2040 from authorized Siemens distributors is typically in stock for fast delivery, as of 2026-10-20. Automation24 advertises the module as in stock, and Kempston Controls ships to most countries. For large volume orders (250+ units), confirm availability with the distributor as lead time may extend to 2-4 weeks.
Is the CMR2040 the same as the CMR2020?
No, the CMR2040 is the 4G/LTE successor to the older CMR2020 (which used 2G/GSM/GPRS). Both modules share the same LOGO! 8 mechanical form factor and RJ45/Ethernet interface, but the CMR2040 uses LTE networks while the CMR2020 used 2G - which is being sunset in many countries. New deployments should choose CMR2040; CMR2020 is suitable only where 2G remains operational.
What is the best drop-in replacement for the Siemens CMR2040?
There is no drop-in cross-brand replacement for the LOGO! CMR2040 because the module is proprietary to the LOGO! 8 left-side expansion bus and uses Siemens' internal expansion protocol. To migrate away from Siemens, designers typically replace both the LOGO! 8 plus CMR2040 with a third-party cellular RTU such as a Sierra Wireless FX30, u-blox SARA-R4-based gateway, or a Huawei AR series industrial router, but this is a system-level redesign, not a drop-in swap.
Where can I download the CMR2040 datasheet PDF?
The official Siemens user manual for the LOGO! CMR2040 (BA_LOGO-CMR2020-CMR2040) can be downloaded from the Siemens Industry Online Support portal at support.industry.siemens.com under entry 109477418. The datasheet is provided as a PDF (76-page document per the Siemens attachment title). Distributors such as Automation24 and mme-ae also mirror the PDF for convenience.
What is the pinout and antenna connection of the CMR2040?
The CMR2040 uses spring-loaded terminal blocks on the front face for the 24V power supply, 2 digital inputs, and 2 digital outputs - no traditional pin header is exposed to the user. Cellular and GPS signals are handled through dedicated external SMA antenna connectors on the top of the module; the antennas are not included and must be ordered separately based on the deployment country.

Technische Referenzdaten für CMR2040 – Vergleich, Designhinweise und Compliance-Informationen.

Auswahlhilfe

Choose the Siemens LOGO! CMR2040 when you need to add LTE cellular remote monitoring, SMS/email alarm routing, and GPS tracking to a LOGO! 8 (0BA8) controller and you prefer to stay within the Siemens ecosystem. It is the right choice for new deployments in countries where 4G LTE is the dominant cellular technology and for any project that benefits from integrated GPS. Choose the older LOGO! CMR2020 only when deploying in regions where 2G/GSM networks remain operational and budget is more important than future-proofing. There is no cross-brand drop-in equivalent - the CMR2040 is a proprietary LOGO! 8 expansion module - so migrating away from Siemens means replacing both the LOGO! base and the communication module with a third-party cellular gateway.

Vergleich mit Alternativen

Parameter Dieses Produkt LOGO! CMR2020
Brand Siemens Siemens
Cellular Technology 4G LTE 2G GSM/GPRS
Compatible LOGO! Series LOGO! 8 (0BA8) LOGO! 8 (0BA8)
Industrial Ethernet Port 1 x RJ45 1 x RJ45
Digital Inputs 2 x DI 2 x DI
Digital Outputs 2 x DO 2 x DO
GPS Position Detection Yes (integrated) No
SMS Send/Receive Yes Yes
Email Dispatch Yes Yes
Form Factor LOGO! 8 expansion module LOGO! 8 expansion module - same

Wichtigste Unterscheidungsmerkmale

  • Integrated GPS for position detection (vs. LOGO! CMR2020)
  • 4G LTE cellular connectivity (vs. LOGO! CMR2020)
  • Same LOGO! 8 mechanical and bus compatibility (vs. LOGO! CMR2020)

Designhinweise

The CMR2040 is approved for specific national LTE bands; ordering the module for the wrong country is a common procurement pitfall because the marketing name 'CMR2040' is the same worldwide but the internal radio differs by MLFB suffix. Confirm the destination country's LTE band plan and select the appropriate Siemens national variant before purchase. Using a CMR2040 variant outside its approved country can violate radio regulations and void the warranty.

The CMR2040 requires external cellular and GPS antennas connected via SMA connectors on the top of the module; antennas are not included in the box. Mount the antennas outside any metallic cabinet using coax rated for the LTE band in use, and provide adequate separation (typically 200 mm minimum) between the cellular and GPS antennas to prevent receiver desensitization. Antenna gain and cable loss directly affect both data throughput and GPS fix time.

Power the CMR2040 from the LOGO! Power module on the expansion bus; do not back-feed 24 V through the local I/O terminals. The module draws additional current during LTE transmit bursts - size the LOGO! Power supply with at least 25 percent margin above the steady-state CMR2040 draw, and use a low-impedance 24 V source so transmit bursts do not cause the LOGO! CPU to brown-out. A 24 V decoupling capacitor (>= 470 uF) at the CMR2040 power terminals is recommended.

The CMR2040's SIM card slot requires a SIM provisioned for SMS plus packet data on the LTE network; a data-only M2M SIM will accept the module on the network but SMS command-and-control will not work. Configure SMS routing rules and authorized phone numbers through the built-in web interface before commissioning, and lock down the web interface password - the module exposes the web UI on its Ethernet port by default.

Compliance-Informationen

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
Bleifrei
Unknown
Halogenfrei
Unknown
Konfliktmineralien
Unknown

Compliance data not present in the provided Verified Web Data - RoHS, REACH, lead-free, halogen-free and conflict-minerals status are marked unknown per Data Authenticity Rules. National LTE radio approvals are country-specific and must be checked against the ordered Siemens MLFB variant.

Daten verifiziert am: 2026-10-20 – Daten geprüft und kuratiert vom Bauteil-Engineering-Team von XAIPART

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