6

Select CPU Redundancy

If the remote drop will be used on the same bus with two controllers (PLCs or host computers), each of which will send it outputs, the Remote I/O Scanner must be set up for CPU Redundancy. For a new Remote I/O Scanner as shipped from the factory, this feature is not enabled. Remote I/O Scanner version IC697BEM733B or later is required to use this feature.

The two types of CPU Redundancy, Hot Standby and Duplex, are described below. For both types of CPU redundancy, inputs and diagnostics are automatically made available to both CPUs.

If the remote drop contains any analog modules, the only form of CPU redundancy permitted is Hot Standby. The Hand±held Monitor will permit selection of either type of CPU redundancy. Do not select Duplex if there are any analog modules in the remote drop.

Hot Standby CPU Redundancy

A device configured for Hot Standby redundancy receives outputs from both CPUs. It is normally controlled by Device Number 31. If no outputs are available from Device Number 31 for a period of three bus scans, the outputs are immediately controlled by Device Number 30. If outputs are not available from either Device Number 30 or 31, outputs go to their configured default or hold their last state. In Hot Standby redundancy, Device Number 31 always has priority, so that when Device Number 31 is on±line, the device always gives it control of the outputs.

Duplex CPU Redundancy

In Duplex mode, a device receives outputs simultaneously from both Device Number 30 and 31. The device compares the outputs. If corresponding outputs are the same, the device sets the output to that state. If corresponding outputs are not the same, the device will set the output to its configured ON or OFF Duplex Default State, which must be configured for all outputs in the remote drop. If either Device Number 30 or 31 stops sending outputs to a device, its outputs are directly controlled by the remaining device. Only discrete devices can operate in Duplex redundancy mode. If both 30 and 31 stop sending outputs, the outputs in the remote drop either default to their programmed default state (not the Duplex Default State), or hold their last state, as configured.

HHM Display

CPU REDUNDANCY

NO CNTL REDUN tgl entr nxt

Configuration Steps

1.If the selection should be changed, press F2 (tgl). Press F3 (entr).

2.Press F4 (nxt) to display the next configuration screen.

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Series 90±70 Remote I/O Scanner User's Manual ± July 1992

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GE GFK0579B user manual Select CPU Redundancy, No Cntl Redun tgl entr nxt
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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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