Channel-freeze Function

The Channel-Freeze function of Advantech’s isolated digital cards is a uniquely-designed feature that facilitates product development and damage control. With the Channel-Freeze function, users can effectively save time on software testing and simulation applications, and limit unexpected damage loss when using this feature as an emergency control mechanism.

Advantech isolated digital output cards with the Channel-freeze function (such as PCI-1752 & PCI-1756) can be applied to most industrial applications. A flat-panel manufacturer in Taiwan realized their time-constrained developing projects by making full use of this feature. The engineers were divided into two groups and were assigned the field-side wiring and software programming tasks individually. Their works had to be done in parallel to accelerate the project schedule. With this function, the software engineers can actually run the IO operation on the cards and test programs without the wiring being physically completed. Therefore, engineers can speed up the development and make it easier to trace bugs in the system.

Moreover, the Channel-Freeze function can be treated as an emergency control function. This feature can be enabled by triggering the CH_FRZ_IN pin. When the pin is high-activated, the card will be Frozen immediately, which means any further commands to the output channels will be neglected until the lock-on status of this card is released. By utilizing this feature, users connect their alarm signal to the CH_FRZ_IN pin as a trigger source and once the alarm signal is sent, the output status of each channel will be immediately saved on the last state to prevent further damage to on-site machines, controlled systems or employees.

Channel-Freeze Diagram

.

Advantech Industrial Automation

ADVANTECH Automation 1320 Kemper Meadow Dr., Ste 500, Cincinnati, OH 45240. 877-294-8989
Copyright 2005 Advantech Automation Corporation. All Rights Reserved