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Match the complete marking
Include the complete ABB 1TGE120021R0810 marking and any revision or assembly number visible on the item. Compare the M10x application, CF configuration and host interface assignment.
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Technical specifications for 1TGE120021R0810
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Manufacturer:ABB
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Product Category:DCS Systems
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Spare Part Number:1TGE120021R0810
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Weight:2.45 kg
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Tariff Code:8537101190
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M10x communication:Modbus RTU over RS-485
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Field serial ports:4
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Host protocols:Modbus RTU / Modbus TCP
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Host communication role:Slave / TCP server
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Nominal supply:24 VDC
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Supply range:19–31 VDC
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Typical current:800 mA
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Maximum current:1000 mA
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Operating temperature:0 to +55 °C
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Protection:IP51
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Application storage:Industrial-grade CompactFlash
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Modbus TCP port:502
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LAN 1 assignment:Modbus TCP
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LAN 2 assignment:Switchgear Control Network
Information
Overview
Downloads
Applications / Compatibility
Product Precautions
- ABB 1TGE120021R0810 separates the M10x field network from the supervisory Modbus connection. It acts as a master toward the motor controllers and as a slave or TCP server toward the DCS, allowing the two communication roles to be configured independently.
Field network: Four RS-485 Modbus RTU ports
Host connection: Modbus RTU or Modbus TCP
Supply: 24 VDC nominal; 19–31 VDC operating range
Host connection: Modbus RTU or Modbus TCP
Supply: 24 VDC nominal; 19–31 VDC operating range
The gateway supports MNS Digital and MNS Digital Upgrade installations using M101/M102 motor controllers. The selected hardware provides serial and Ethernet interfaces; the application runs from an industrial-grade CompactFlash card. The CF card contains configuration and mandatory application files and is required for startup and operation.
LAN 1 is assigned to Modbus TCP, LAN 2 to the Switchgear Control Network, and Serial 2 to the Modbus RTU host interface. Serial 1 serves redundancy. LAN 3 and the USB ports are unused in this application. On the M10x side, the four serial ports operate as Modbus RTU masters; RS-485 segment wiring, addresses and termination must be engineered together.
The nominal supply is 24 VDC, with a 19–31 VDC range and typical/maximum current of 800/1000 mA. The permitted operating temperature is 0–55 °C and protection is IP51. Modbus TCP uses port 502. Register addresses, data representation and control access determine how a host reads measurements or issues motor commands; network reachability alone does not verify those mappings.
LAN 1 is assigned to Modbus TCP, LAN 2 to the Switchgear Control Network, and Serial 2 to the Modbus RTU host interface. Serial 1 serves redundancy. LAN 3 and the USB ports are unused in this application. On the M10x side, the four serial ports operate as Modbus RTU masters; RS-485 segment wiring, addresses and termination must be engineered together.
The nominal supply is 24 VDC, with a 19–31 VDC range and typical/maximum current of 800/1000 mA. The permitted operating temperature is 0–55 °C and protection is IP51. Modbus TCP uses port 502. Register addresses, data representation and control access determine how a host reads measurements or issues motor commands; network reachability alone does not verify those mappings.
Controller platform reference: MNS Digital with M10x. Match the field segments, application and host register map.
The original technical excerpt for ABB 1TGE120021R0810 covers gateway identity, power, port roles and field/network configuration. The separate installation guide covers CF handling, RS-485 preparation, host settings and communication acceptance.
1TGE120021R0810 Official Technical Excerpt
The original technical excerpt for ABB 1TGE120021R0810 covers gateway identity, power, port roles and field/network configuration. PDF · 10 pages.1TGE120021R0810 Installation & Verification Guide
Apter Power installation and verification guide covering CF handling, RS-485 preparation, host settings and communication acceptance. PDF · 5 pages.
Original manufacturer pages retain their technical context. Use the Apter Power guide with the applicable manufacturer instructions and approved installation design.
System and supply context: The gateway links an M10x switchgear installation to the configured DCS or PLC Modbus host. CF application files, field devices, network cables and mounting hardware must be identified separately.
Application scope: Use the published M10x register and command mapping for measurements, status and control. Interface hardware alone does not establish another protocol or motor-control application.
Application scope: Use the published M10x register and command mapping for measurements, status and control. Interface hardware alone does not establish another protocol or motor-control application.
M10x field aggregation
Four RS-485 segments collect motor-controller status and measurements through Modbus RTU.Modbus TCP supervision
LAN 1 provides the configured server interface for host queries on the Ethernet control network.Serial host integration
Serial 2 supports the selected Modbus RTU connection to a supervisory master.Configured redundant gateway
The Serial 1 redundancy interface supports the engineered gateway arrangement, subject to matching application and network settings.
Prepare ABB 1TGE120021R0810 for its configured installation using these checks.
Retain CF application
Back up the configured application and use industrial-grade CF media appropriate to the gateway.
Keep port roles distinct
Do not interchange LAN 1, LAN 2, Serial 1 and Serial 2 merely because connectors fit.
Check RS-485 termination
Preserve balanced wiring, shielding and the termination at each end of the segment.
Match serial settings
Match M10x address, baud rate, parity and stop-bit settings within each field segment.
Verify command mapping
Test read values and controlled commands against the correct register map and access state.
Control network exposure
Keep the gateway within the approved control network and security configuration.
Alternative Names
ABB 1TGE120021R0810
Technical notes
Engineering relationship: The gateway is a master on the M10x RTU network but a slave/TCP server toward the control system. Host commands and field-device addresses belong to different configuration layers.
Installation boundary: Remove power before inserting or removing the mechanically keyed industrial CF card. Its application files are required for the gateway to start and run.
Technical basis: ABB MNS Digital with M10x, Interface Manual Modbus, 1TGC908004M0201, Release 1.1, May 2018. The hardware identity and ratings apply to the M10x Modbus gateway configuration. Interface roles and register behavior depend on its installed application and host settings.
FAQ View All FAQ
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Why does 1TGE120021R0810 use different master/slave roles on its two sides?It polls M10x devices as the Modbus RTU master, while the DCS or PLC polls the gateway as a slave or TCP server. Host communication settings and field-segment settings therefore serve different roles.
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Which Ethernet port on 1TGE120021R0810 carries Modbus TCP?LAN 1 is the Modbus TCP interface. LAN 2 serves the Switchgear Control Network; LAN 3 is unused in the described M10x configuration.
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Can 1TGE120021R0810 start its application without the CompactFlash card?No. The industrial-grade CF card contains the mandatory application and configuration files required to start and run the gateway.
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What must be removed before changing the CF card in 1TGE120021R0810?Remove the power-supply connector and lift the metal cover before inserting or removing the card. The keyed card must be inserted in the correct orientation without force.
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Does 1TGE120021R0810 accept Modbus ASCII in place of RTU?No. The supported serial transmission mode is RTU; ASCII is not supported. Match the host and field settings to the selected RTU or TCP interface.
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Where is the external RS-485 terminator needed for 1TGE120021R0810?The gateway serial port has an internal terminating resistor at its end of the segment. The far end requires the specified 120 Ω termination; preserve the engineered segment wiring and shielding.
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Which supply margin is available around the 24 V rating of 1TGE120021R0810?The input range is 19–31 VDC. Typical current is 800 mA and maximum current is 1000 mA, so the supply and wiring must maintain that range under load.
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Why can 1TGE120021R0810 respond over Ethernet while the motor values remain incorrect?A working network connection confirms transport only. Verify Modbus register addresses, byte representation, device mapping and control-access configuration before accepting measurements or commands.
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