You aren’t limited to fifty feet of cable like with RS232. It is interesting to measure the humidity of the ground, but we have also thought about other things; and then we have TXtemp to measure the temperature (one of the uses of TXtemp is in association with SuperClock), and for practically any type of measurement we have TXdata (RS232, RS485 ModBus) - which can be connected to thousands of existing third-party professional RS232 or ModBus meters (and there is something for all needs: temperature and humidity meters, anemometers, voltage meters, energy, light meters, water meters, presence sensors, brightness sensors, soil humidity sensors, etc. ; practically all professional meters are available in ModBus or RS232 standard; and not just meters). Data rates of 100Kbps can be achieved over distances of up to 1200 meters. In recent years, advancements in RS485 cable technology have focused on improving data transfer speeds and increasing the efficiency of data transmission. The latest point of view on RS485 cables includes advancements in design to support higher data rates and improved resistance to environmental factors such as temperature fluctuations and moisture.
From the latest point of view, advancements in technology have led to the development of enhanced RS485 cables that can support even higher transmission speeds and longer distances. These cables are commonly used in industrial automation, building automation, and other applications where reliable and robust communication is necessary. Generally, RS485 cables can support data rates ranging from 100 kbps to 10 Mbps, making them suitable for a wide range of industrial applications. It is designed to meet the electrical characteristics required for reliable data transmission in noisy environments. The RS422 protocol has similarities with RS485 in that both conduct data transmission using differential signals. Additionally, the adoption of Ethernet-based communication protocols in industrial automation systems has also influenced the evolution of RS485 cables, with some applications transitioning to higher-speed Ethernet connections for faster data transfer. A cable for use with RS-485 based systems. RS485 is primarily used in multi-drop configurations that make use of its balanced differential interface.
No matter the devices, it is always good on real site installation to use a shielded cable, with 18-22AWG wiring and the shield connected ONLY to one end of the line. The RS485 employs a set of 120 Ohm termination resistors located at each end of the line. The cables also have a balanced line configuration, which helps to further enhance noise rejection and signal integrity. All communication cabling to be installed in a daisy chain configuration, no T’s are permitted. Shield on communication cable is to remain continuous and ground only at the controller. 989227-01M. Host-Master/Master-Master Controller Cable. The cable shield must be earthed only in one point. This allowed users in manufacturing facilities to connect larger applications and whole machines with one protocol. These characteristics make RS-485 useful in industrial control systems and similar applications. An RS-485 cable is a type of communication cable used in serial communication systems. Used by the CAN based Fieldbus systems, other open Fieldbus systems, PLC and DCS systems. Overall, RS485 cables are known for their robustness, reliability, and versatility, making them a popular choice for industrial automation, building control systems, and other applications requiring stable and secure communication over extended distances. RS485 Cables for Lithium Ion Capacitor Modules.
Features. Connects a Printer, Router or Other DTE Serial Device to Your Computer ’s USB-A PortThis 30-inch USB to RS485 adapter cable turns your computer ’s USB port into an RS422 or RS485 serial port and avoids the expense of upgrading your reliable serial devices. Multi-drop configurations enable up to 32 devices to be connected with a single controlling master device. As displayed in the RS485 cable pinout, the interface has all signals in differential configurations. The RS485 (EIA485) interface has proved to be extremely robust and is the most popular communication protocol used in industry due to its multi-point topology. GT8E-20DS-HU (Hirose) Connectors. Electro Standards Laboratories manufactures RS485 cables in any length to support multiple Lithium Ion Capacitor Modules. The adapter comes standard with a 10-foot power cable and two parallel 4 pin Molex RS-485 connectors. 24 AWG/0.20 CSA low capacitance computer cables to meet the RS-485 standard. The standard does not discuss cable shielding but makes some recommendations on preferred methods of interconnecting the signal reference common and equipment case grounds. This has led to the development of enhanced shielding techniques and improved cable designs to minimize signal loss and maintain signal integrity over longer distances. In addition to its physical characteristics, RS485 cables also have specific electrical properties that allow for differential signaling, enabling reliable data transmission over longer distances compared to other communication protocols.