ADAPTER RS485-USB W/PLUG The RS485 is required to enable the Modbus communications to function on Model 77x-type products. This article mainly covers cable, wiring, pinout, application, and other details about the RS485. Furthermore, there is a huge range of semiconductors, capacitors, resistors, and ICs in stock. Welcome RFQ!
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Sep 15, 2021
Angelo O'Casey
What is RS485 and how it's used in Industrial Control Systems?
ADAPTER RS485-USB W/PLUG
The RS485 is required to enable the Modbus communications to function on Model 77x-type products. This article mainly covers cable, wiring, pinout, application, and other details about the RS485. Furthermore, there is a huge range of semiconductors, capacitors, resistors, and ICs in stock. Welcome RFQ!
RS485-USB
| Quantity | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $294.28683 | $294.29 |
| 10+ | $277.62908 | $2776.29 |
| 100+ | $261.91423 | $26191.42 |
| 500+ | $247.0889 | $123544.45 |
| 1000+ | $233.10273 | $233102.73 |
The RS485 is required to enable the Modbus communications to function on Model 77x-type products. This module is required when the RM1000, RM2000, or other Modbus-capable device is used with 77x-type products.
Littelfuse Inc. RS485-USB technical specifications, attributes, parameters and parts with similar specifications to Littelfuse Inc. RS485-USB.
| Product Attribute | Attribute Value | |
|---|---|---|
| Factory Lead Time | 9 Weeks | |
| Part Status | Active |
| Product Attribute | Attribute Value | |
|---|---|---|
| Moisture Sensitivity Level (MSL) | Not Applicable | |
| Accessory Type | Cable Assembly |
| Product Attribute | Attribute Value | |
|---|---|---|
| RoHS Status | ROHS3 Compliant |
An RS485 system should ideally consist of a single linear cable (with no branching) with 120-ohm resistors linked across the two wires at each end. RS485 can handle line lengths of over 1 km and rates of over 10 Mbits per second.
RS485 Wiring Diagram
Littelfuse, Inc is an American electronic manufacturing company headquartered in Chicago, Illinois. The company primarily produces circuit protection products but also manufactures a variety of electronic switches and automotive sensors. Littelfuse was founded in 1927. In addition to its Chicago, Illinois, world headquarters, Littelfuse has more than 40 sales, distribution, manufacturing, and engineering facilities in the Americas, Europe, and Asia.
Optical isolation from line potentials
Powered by the 77x product
RS-485 compliant bus drive capability
Remote reset input connection
Power connection for the Model RM1000
The RS485 can be utilized in a variety of applications.
Establish communications in LED displays.
Data reading and writing in PLC machines
Device parameter adjustments and data transfer via the RS485 connection.
Control of household electrical appliances from a central location
With multi-drop (many devices on the same bus) and extensive cabling lengths, it's easy to see why the RS485 is so popular in the industrial and automation worlds. RS-485 is also used in theater applications, where a large number of devices are spread out across a large area.
Furthermore, the RS-485 standard's noise immunity makes the interface extremely adaptable. Engineers are employing it not only for lengthy cabling distances but also in industries such as the automotive industry, where it is unknown what noise will be encountered in the end product. Because it may be used at high speeds, over long distances, in electrically loud settings, and with multiple devices on the same bus, RS-485 is a good choice for most serial interface applications.
Download datasheets and manufacturer documentation for RS485-USB
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