SCSI Commands

LOG SENSE Command (4Dh) (continued)

Table 5–19 LOG SENSE Command Descriptor Block - Field Descriptions

Field Name

Description

 

 

PPC

Parameter Pointer Control. This bit must be set to 0. A PPC of 0 indicates that the

 

parameter data requested from the device starts with the parameter code

 

specified in the Parameter Pointer field (Bytes 5 - 6) and return the number of

 

bytes specified in the Allocation Length field (Bytes 7 - 8) in ascending order of

 

parameter codes from the specified log page.

 

Note that the current implementation of the READ/WRITE COMPRESSION page

 

does not support a PPC other than 0.

 

If PPC bit is set, then the target terminates the command with CHECK CONDITION

 

status, sense key set to ILLEGAL REQUEST, and additional sense code set to

 

INVALID FIELD IN CDB.

SP

Save Parameters. Not supported, must be set to 0. If for some reason the Save

 

Parameters bit is set, the command terminates with a CHECK CONDITION status

 

with a sense key of ILLEGAL REQUEST and an ASC of INVALID FIELD IN CDB.

PC

Page Control. This field defines the type of parameter values to be returned:

 

PC - Type of Parameter Values

 

00b - Threshold Values

 

01b - Cumulative Values

 

10b - Default Threshold Values

 

11b - Default Cumulative Values

 

The Default Threshold Values are the maximum values that each parameter can

 

attain.

 

The Current Cumulative Values are the values computed since the last reset of the

 

device (either via power-cycle, BUS DEVICE RESET, or SCSI RESET.

 

The Default Cumulative Values are the values to which each parameter is

 

initialized at a reset condition. Default values are zero.

 

By default, Current Threshold Values = Default Threshold Values.

 

Note that all types of parameter values are changeable via LOG SELECT.

 

 

5-40

Quantum DLT 7000 Tape System

Page 143 Page 145
Page 144
Image 144
Quantum Instruments DLT 7000 manual LOG Sense Command 4Dh, LOG Sense Command Descriptor Block Field Descriptions, Ppc
Page 143 Page 145

DLT 7000 specifications

The Quantum Instruments DLT 7000 is a state-of-the-art battery-powered light that brings advanced photography and videography offerings to professionals and enthusiasts alike. Renowned for its compact design, the DLT 7000 combines lightweight portability with powerful functionality. It is engineered to enhance the creative process by providing optimal lighting solutions in a variety of settings.

One of the standout features of the DLT 7000 is its innovative LED technology. This light source offers consistency in color temperature and output, ensuring high-quality illumination for both photo and video applications. The unit boasts an impressive color accuracy with a CRI (Color Rendering Index) rating that exceeds 90, making it ideal for capturing true-to-life colors in any situation. The DLT 7000 allows users to adjust the color temperature from a warm 3200K to a cool 5600K, catering to different lighting needs and environments.

Moreover, the DLT 7000 features a dimming function that allows for seamless adjustments from 0 to 100% brightness. This level of control not only aids in achieving the perfect exposure but also helps in creating the desired mood or atmosphere for a shot. The robust design of the DLT 7000 includes durable construction material that can withstand the rigors of location shoots, making it a reliable tool for professionals.

In addition to its lighting capabilities, the DLT 7000 incorporates smart technology. It is equipped with a built-in wireless control system that allows users to adjust settings from a distance, promoting flexibility during shoots. This wireless functionality extends to multiple units, enabling synchronized lighting setups for complex scenes.

Another notable characteristic of the DLT 7000 is its versatile power options. The light can operate on lithium-ion batteries, ensuring long-lasting performance during extended shoots without the constraint of power outlets. There is also an option for AC power, providing users flexibility in various shooting locations.

In summary, the Quantum Instruments DLT 7000 stands out with its combination of advanced LED technology, adjustable color temperatures, built-in dimming capabilities, and smart wireless controls. Whether for professional photography or videography, this light is designed to meet the demands of the most discerning artists, making it an essential addition to any lighting kit.
Top Page Image Contents