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PRODUCT DESCRIPTION
6GK7177-1MA20-0AA0 expands compact Ethernet connectivity
Siemens 6GK7177-1MA20-0AA0 is the LOGO! CSM 12/24 compact switch module for small Industrial Ethernet networks. Four RJ45 ports connect a LOGO! controller and up to three additional Ethernet nodes at 10 or 100 Mbit/s.
The unmanaged switch operates from a 12/24 V DC supply and supports line, tree or star arrangements. A front-facing Ethernet port provides accessible diagnostic connections inside the cabinet; it is one of the four ports, not an additional fifth port.
The unmanaged switch operates from a 12/24 V DC supply and supports line, tree or star arrangements. A front-facing Ethernet port provides accessible diagnostic connections inside the cabinet; it is one of the four ports, not an additional fifth port.
BEFORE YOU BUY
Plan the cabinet connections before ordering
ACTUAL APPLICATIONS
Where 6GK7177-1MA20-0AA0 connects small machine networks
The Siemens Industrial Ethernet system manual, section 9.3, supports operator-device connections, direct cabinet diagnostic access and standalone Ethernet networking. These are different connection tasks, not location-based examples.
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01 · OPERATOR COMMUNICATION
Connect local logic and an operator interface
Use the CSM to link a LOGO! logic module with compatible operator control, monitoring or display equipment. The Ethernet connections carry the devices' configured application traffic while the compact module fits the LOGO! cabinet arrangement. -
02 · SERVICE ACCESS
Provide a reachable diagnostic connection
Siemens places an Ethernet port on the front for direct diagnostic access inside the cabinet. A technician can connect a programming or diagnostic device without treating that socket as a fifth port; reserve the connection in the network plan. -
03 · STANDALONE NETWORKING
Link Ethernet equipment without a logic module
The system manual permits standalone use for networking different Ethernet devices. Build the required line, tree or star arrangement, supply the switch separately and verify each endpoint's rate and application protocol.
Technical specifications for 6GK7177-1MA20-0AA0
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Product Model6GK7177-1MA20-0AA0
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Product ParametersCompact Unmanaged Ethernet Switch
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In stock1 unit
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ManufacturerSiemens
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Ethernet connections4 RJ45 ports, including one front-facing diagnostic access port
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Supported transfer rates10 and 100 Mbit/s
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DC supply range10.2 to 30.2 V DC
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Maximum current consumption0.15 A
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Rated power loss1.5 W
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Power connectionOne 3-pole terminal block
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Supply input protectionFuse at power supply input
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Permitted operating temperature0 to 55 deg C
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Maximum relative humidity90% at 25 deg C, without condensation
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Protection ratingIP20
View all additional
Alternative Names
6GK7177-1MA20-0AA0
Siemens LOGO! CSM 12/24
LOGO! Four-Port Ethernet Switch
SYSTEM & REPLACEMENT CHECK
Information needed before ordering
Three direct checks to secure your system integration and minimize ordering risks.
Information
System integration
Replacement check
Manuals & support
LOGO! COMPACT ETHERNET NETWORKING
Plan four ports, DC power and the actual network load
Siemens 6GK7177-1MA20-0AA0 is the LOGO! CSM 12/24 compact switch module for small Industrial Ethernet networks. Four RJ45 ports connect a LOGO! controller and up to three additional Ethernet nodes at 10 or 100 Mbit/s.
The Siemens system manual describes line, tree and star networks, connections to operator and programming devices, and standalone Ethernet use. The front diagnostic connection is included in the four-port total.
Use a separate DC supply within 10.2 to 30.2 V and the documented 3-pole terminal. Allow for the body dimensions and select 35 mm DIN-rail or wall mounting. This unmanaged device does not provide multiport mirroring.
Features:
- Exact article: 6GK7177-1MA20-0AA0
- Four 10/100 Mbit/s ports; one faces forward
- Verify DC supply, node count and mounting method
The Siemens 6GK7177-1MA20-0AA0 requires the power source, Ethernet endpoints, port allocation and cabinet environment to be checked for reliable system integration and commissioning.
INTERCHANGEABILITY
Verify the complete replacement identity before commissioning
Match 6GK7177-1MA20-0AA0 to the existing LOGO! CSM 12/24 installation. CSM 230 is a different supply variant, and a similar enclosure does not establish identical electrical requirements.
Record the supply voltage, connected Ethernet devices and the purpose of every cable, including the front port. Check the 3-pole terminal, connector condition, rail or wall mounting and cabinet operating temperature.
Arrange a controlled network interruption before exchanging the switch. Reconnect the identified DC supply and Ethernet links, then verify LED indications and the intended communication between every connected endpoint.
Features:
- Match the DC article number and power terminal
- Preserve cable identification and front-port access
- Test endpoint communication after the exchange
The Siemens 6GK7177-1MA20-0AA0 LOGO! CSM 12/24 requires replacement verification of supply voltage, network connections, mounting and the actual communication task before return to service.
DOCUMENTATION STATUS
Browse the Manuals, Datasheets, Official Documents, Links
Important Notice: Official documents are provided through manufacturer links. Accessories, manuals, cables, calibration data, software, certificates, and other items are not included with this equipment unless listed in the stock item description.
Features:
- Available Siemens document references are confirmed before order
- Software licensing and project backups remain the customer's responsibility
- Accessories are supplied only when listed in the quotation
Documentation for the Siemens 6GK7177-1MA20-0AA0 LOGO! CSM 12/24 must be identified by its full article number and DC supply version; confirm manual availability in the written quotation.
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Important notice
Manuals, software, firmware, cables, calibration data and accessories are included only when listed in the quotation. AMIKON is an independent supplier and is not affiliated with or authorised by the manufacturer.
This content has been produced using multiple sources. Takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
BUYER INFORMATION
Commercial terms without hidden steps
Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
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Shipping & delivery
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DispatchEligible stock: same / next day
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CarriersDHL, FedEx or UPS
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Ship fromXiamen, China
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Packed size4.5 × 7.5 × 10.0 cm
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Shipping weightApprox. 0.15 kg
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Payment & customs
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PaymentBank transfer (T/T)
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CurrenciesUSD · EUR · GBP · RMB
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Credit cardsNot accepted
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HS reference8517623200
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OriginGermany
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Warranty & returns
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Warranty12 months from AMIKON
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InspectionLabel, condition and packing checks
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ReturnsPrior RMA authorisation required
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CompatibilityConfirm before order
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OEM warrantyDoes not apply
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Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
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Part checked
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Condition checked
Label and appearance -
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Tracking supplied
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Sandy Lin
Dedicated account manager · 15+ years
FREQUENTLY ASKED QUESTIONS
Questions buyers ask about 6GK7177-1MA20-0AA0
Direct answers about identity, compatibility, stock, warranty, payment and shipping.
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Does the front diagnostic socket increase the connection count to five?
No. Siemens specifies four Ethernet connections in total. The front-facing diagnostic socket is included in those four, so reserve a port for maintenance access when planning a LOGO! controller and its other network devices. -
Can a technician use this switch to mirror traffic from several ports?
No. The exact-model technical data lists multiport mirroring as unavailable. For packet capture that requires a mirror destination, select a separately specified managed switch or another documented diagnostic arrangement. -
Is a LOGO! CPU necessary for the CSM to forward Ethernet traffic?
No. The Siemens Industrial Ethernet manual explicitly permits standalone networking of different Ethernet devices. The CSM still needs its own DC supply and compatible Ethernet links; the connected devices determine their application-level communication. -
Will connecting a gigabit-capable panel make this a gigabit network?
No. The switch ports support 10 and 100 Mbit/s, not 1 Gbit/s. Confirm that each panel or other endpoint supports one of the CSM rates and that the application bandwidth fits the selected links. -
Can the 230 V wiring from a CSM 230 be reused on this article?
No. 6GK7177-1MA20-0AA0 is the CSM 12/24 DC version, with a specified input range of 10.2 to 30.2 V DC. The CSM 230 is a different article. Verify the actual supply and isolate the circuit before transferring any wiring. -
Does its LOGO! appearance mean it mounts on an S7-300 profile rail?
No. Siemens lists 35 mm DIN-rail mounting and wall mounting for this exact model, but not S7-300 or S7-1500 rail mounting. Confirm the cabinet support and available body space before releasing the mechanical design. -
What ambient limit matters in a warm, humid control cabinet?
The published operating range is 0 to 55 degrees C with a maximum relative humidity of 90% at 25 degrees C without condensation. Its IP20 rating is not a wet-area rating; use an enclosure and environment that maintain these limits. -
What should an MRO receiver verify on the power connection?
Match the full article number and DC rating, then check the 3-pole supply terminal and its device markings. The exact-model data specifies one power connection, a maximum current of 0.15 A and an input fuse. Do not infer terminal identity or supply type from the enclosure alone.
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