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ABB 1VCF750079R801 COM MODBUS (RS485) Module

14 in stock

Manufacturer: ABB
Product No.: 1VCF750079R801
Country of origin: Sweden
Product Type: COM MODBUS (RS485) Module
Condition: Brand New
Payment: T/T, Western Union
Weight: 0.28 kg
Shipping port: Xiamen
Warranty: 12 months

Description
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Configured for MODBUS RTU data communication over an RS485 physical interface, the ABB 1VCF750079R801 (1VCF750079R801 COM MODBUS (RS485) Module) provides serial communication between control equipment and connected ABB devices. The module operates from 12-24 VDC, draws 100 mA, and has a stated power consumption of 1.2 W.

Hardware Specifications

Parameter	Specification
Model	1VCF750079R801
Brand	ABB
Type	COM MODBUS (RS485) Module
Communication Protocol	MODBUS RTU
Communication Interface	RS485
Baud Rate	Configurable; standard MODBUS speeds supported
Power Supply	12-24 VDC
Current Consumption	100 mA
Power Consumption	1.2 W
Mounting	DIN rail or panel mount
Housing Material	Industrial-grade flame-resistant plastic
Weight	0.28 kg
Operating Temp	-20 deg C to +70 deg C
Storage Temp	-40 deg C to +85 deg C

RS485 and MODBUS RTU Communication

The module provides an RS485 serial interface for MODBUS RTU communication. RS485 uses differential signaling and is suitable for multidrop serial networks when the physical wiring, termination, polarity, and signal reference are implemented according to the applicable network design.

The communication speed is configurable within the supported MODBUS operating range. Network commissioning should verify the baud rate and other serial communication parameters against the connected devices before placing the link into service.

Frequently Asked Questions (FAQ)

Q: What communication protocol does the 1VCF750079R801 use?
A: The module uses MODBUS RTU over an RS485 physical interface.

Q: What supply voltage and current are specified for the module?
A: The specified supply range is 12-24 VDC, with a current consumption of 100 mA.

Q: Can the module be DIN-rail mounted?
A: Yes. The supplied data specifies DIN rail or panel mounting.

Field Installation Guidelines

Install the module on a mechanically secure DIN rail or panel mounting surface.
Verify that the applied supply voltage remains within the specified 12-24 VDC range.
Route RS485 communication wiring separately from high-current power conductors where practical to reduce electrical interference.
Maintain consistent RS485 polarity throughout the communication segment.
Apply RS485 termination according to the network topology and the requirements of the connected MODBUS devices.
Use shielded communication cable where the installation environment requires additional electromagnetic interference control.
Connect the cable shield according to the site's grounding and EMC practice; avoid creating unintended ground loops.
Confirm MODBUS RTU communication parameters at both ends of the link before commissioning.
Allow adequate enclosure ventilation and maintain the specified operating temperature range of -20 deg C to +70 deg C.
Confirm the actual mounting dimensions and terminal arrangement against the applicable ABB hardware documentation before fabrication or panel drilling.

Payment: T/T, Western Union.

Shipping port: Xiamen.

Lead time: Typically 1–3 working days after payment confirmation (subject to stock).

Worldwide delivery: We ship industrial automation parts to customers around the world. Freight is quoted with your RFQ.

F.A.Q.

Common questions about quotes, shipping, warranty and returns

Click Request a Quote on the product page and send us the part number, required quantity, and destination country. Our sales team will reply with current availability, pricing, and estimated delivery time.

In-stock items are normally prepared after payment and order confirmation. Most orders are dispatched from our warehouse in China, although the shipping location may vary depending on current stock.

Yes. We ship industrial automation parts to customers worldwide. Shipping cost and transit time depend on the destination, package weight, product size, and local import requirements.

We commonly use DHL, FedEx, UPS, and other international courier services. The carrier can be selected according to the destination, delivery speed, shipment size, and customer requirements.

Our products are generally covered by a 12-month warranty. Eligible products may also be returned under our 30-day refund policy. Please contact our team before returning any item to confirm the applicable terms and return instructions.