140NOM21100 Schneider Electric DIO Head-End Adaptor Modicon Quantum

Schneider Electric 140NOM21100 DIO Head-End Adaptor | Modbus Plus RS485 for Quantum

• Communication ports: The 140NOM21100 has one Modbus Plus RS485 port over twisted pair copper. It also includes one Modbus RS232 port. The Modbus Plus port runs at 1 Mbit/s.
• I/O capacity: It supports 30 input words and 32 output words. This allows efficient data exchange with remote I/O drops.
• Product compatibility: This adaptor works with 140CRA21120 and 140CRA21110 remote I/O adaptors. It forms a complete distributed I/O system.
• Power and checks: It consumes 4 watts of power. The bus current draw is 780 mA. It performs checksum and RAM address verification for reliable operation.
• Built for industry: It operates from 0 to 60 °C (32 to 140 °F). It meets UL 508, CSA, FM Class 1 Division 2, C-tick, GOST, and RMRS standards. It withstands 10 V/m electromagnetic fields and 8 kV electrostatic discharge.
• Easy installation: The standard Quantum format fits any rack slot. IP20 protection suits cabinet mounting. It works up to 5000 meters altitude with 95% non-condensing humidity.

Key specifications

• Brand: Schneider Electric
• Model: 140NOM21100
• Type: DIO head-end adaptor
• Ports: 1 x Modbus Plus RS485 (twisted pair copper) + 1 x Modbus RS232
• Transmission rate: 1 Mbit/s (Modbus Plus)
• I/O words: 30 input / 32 output
• Compatible with: 140CRA21120, 140CRA21110
• Power dissipation: 4 W
• Bus current: 780 mA
• Operating temp: 0…60 °C (32…140 °F)
• Storage temp: -40…85 °C (-40…185 °F)
• Humidity: 95% non-condensing
• Altitude: up to 5000 m (16404 ft)
• EMI immunity: 10 V/m (80…2000 MHz)
• ESD immunity: 8 kV air / 4 kV contact

Frequently asked questions

• Q: What is the difference between 140NOM21100 and 140NOM21200?
  A: The 140NOM21100 offers one Modbus Plus RS485 port and one RS232 port. It supports 30 input and 32 output words for distributed I/O applications.
• Q: Which remote I/O adaptors work with this head-end?
  A: The 140NOM21100 works with 140CRA21120 and 140CRA21110 remote I/O adaptors from Schneider Electric.
• Q: Can I remove the adaptor while the rack is powered?
  A: No. You must turn off the rack power before installing or removing the adaptor. Hot swapping can cause damage.
• Q: What is the maximum cable length for Modbus Plus?
  A: Modbus Plus over twisted pair copper supports up to 450 meters per segment with proper termination.
• Q: Is this adaptor suitable for hazardous locations?
  A: Yes. It holds FM Class 1 Division 2 certification for use in hazardous industrial environments.
• Q: Do you have stock? How fast can you ship?
  A: Yes, we keep new original units in stock. We ship within 5 business days after payment. We use DHL, FedEx, or UPS.
• Q: Can I return it if I change my mind?
  A: Yes. You can return the adaptor within 30 days. It must be unused and in the original box.