1

Genius Bus

The Genius bus is an industrially±hardened Local±Area±Network (LAN). It passes I/O (control) data and background information (datagrams) between the Remote I/O Scanner and a Genius bus controller. The communicated data is protected from environmental interference and corruption in several ways. Each byte is triply±encoded during transmission, and each message is checksummed with a cyclic redundancy check (CRC). Embedded intelligence at either end also checks for correct message length and type.

A Genius bus can support up to 32 devices. Each remote drop counts as one device on the bus, regardless of the number or type of modules it includes. A bus can serve any mix of remote drops, I/O blocks, Bus Controllers and Hand±held Monitors, provided the bus scan time does not exceed 400mS. Typical busses reserve one location for a Bus Controller and one for a Hand±held Monitor, leaving 30 for additional devices. The illustration below shows a Bus Controller in a Series 90±70 PLC connected to a Genius bus with I/O blocks and two single±rack remote drops.

PC S P U

B C

MAXIMUM BUS LENGTH

7500 FEET WITH 16 DEVICES, AT 38.6K BAUD

3500 FEET WITH 32 DEVICES, AT 153.6K BAUD EXT.

 

 

 

 

 

90±70 REMOTE RACK

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90±70 REMOTE RACK

 

 

 

 

 

 

 

 

 

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Bus Type

Daisy±chained bus cable; single twisted pair plus shield or Twinax.

 

 

Fiber optics cable and modems can also be used.

 

 

 

 

Bus Termination

75, 100, 120, or 150 ohm resistor at both ends of electrical bus cable.

 

 

 

 

Baud Rate

Configurable. 153.6 Kbaud standard, 153.6 Kbaud extended,

 

 

76.8Kbaud, or 38.4 Kbaud.

 

 

 

 

Maximum Bus

7500 feet at 38.4 Kbaud, 4500 feet at 76.8 Kbaud, 3500feet at 153.6

 

Length

Kbaud extended, 2000 feet at 153.6 Kbaud, standard. Maximum

 

 

length at each baud rate also depends on cable type. The GeniusI/O

 

 

SystemUser'sManual pro vides a complete list of cable types, show-

 

 

ing corresponding bus lengths and baud rates. Greater bus lengths

 

 

are possible using sections of fiber optics cable with modems.

 

 

 

 

Maximum Number of

32 devices at 153.6 Kbaud standard, 153.6 Kbaud extended, or 76.8

 

Devices

Kbaud. 16 devices at 38.4 Kbaud. Includes Bus Controller and

 

 

Hand± held Monitor.

 

Chapter 1 Introduction

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Image 18
GE GFK0579B user manual Genius Bus, Maximum BUS Length
Page 17 Page 19

GFK0579B specifications

The GE GFK0579B is a compact and efficient refrigerator designed to meet the needs of modern households. With its sleek design and impressive features, it has quickly become a popular choice for those looking for functionality without compromising on aesthetics. One of the standout characteristics of this model is its energy efficiency, which is crucial in today's environmentally conscious market. The GFK0579B is equipped with advanced cooling technologies that ensure optimal temperature control while minimizing energy consumption.

In terms of capacity, the GFK0579B is thoughtfully designed to maximize storage space. It features adjustable shelves that allow users to customize the interior layout according to their specific needs, accommodating various sizes of groceries and beverages with ease. The refrigerator also includes dedicated compartments for fruits and vegetables, helping to keep them fresh and prolong their shelf life. An integrated ice maker adds to the convenience, providing a steady supply of ice without the need for manual production.

Another notable feature is the refrigerator's smart technology integration. The GFK0579B is compatible with various smart home systems, enabling users to monitor and control settings remotely. This connectivity is ideal for tech-savvy consumers who appreciate the ability to manage their appliance efficiently from their smartphones or tablets. Additionally, the temperature control system is designed to be precise, ensuring that different food items are stored at their optimal temperatures.

The exterior of the GE GFK0579B is designed with a modern finish that fits seamlessly into any kitchen décor. The fingerprint-resistant stainless steel surface not only looks great but also cuts down on the maintenance required to keep the appliance looking new.

Furthermore, safety is a priority with this model, which includes features such as door alarms that notify users if the door has been left ajar for an extended period. Overall, the GE GFK0579B is a well-rounded refrigerator that combines energy efficiency, smart technology, and user-friendly design, making it an excellent addition to any home. Whether you're a culinary enthusiast or just looking for a reliable appliance, the GFK0579B stands out as a versatile choice.
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