Microscan MS-4 Specifikace stáhnout pdf (Strana 198)

A-30 MS-3 Laser Scanner User’s Manual

A–Appendices

Delimited. A command or field that is bracketed by pre-defined characters.

Decode Rate. The number of reads decoded per second by a scanner or 2D reader

expressed in percentages.

Depth of Field. The distance between the minimum and maximum range in which

symbols have been read.

Discrete I/O. Inputs and outputs characterized by discrete signal transitions from one

voltage level to another so that digital switching can occur.

Dynamic Setup. Testing and configuration done with symbols in motion.

Edge. Allows a read cycle to be initiated by a trigger signal from an object detector

when it detects the appearance of an object (rising edge). The read cycle ends with a

good read, a timeout, or a new trigger.

Embedded Memory. Onboard memory device such as EPROM or flash.

Embedded Menu. Configuration options embedded in the scanner’s erasable memory.

End of Read Cycle. The time or condition at which the scanner stops expecting sym-

bol information to decode.

ESP. Easy Setup Program. A portable proprietary Windows/NT based program devel-

oped by Microscan Systems, Inc.

EPROM. Erasable, programmable, read only memory.

Falling Edge. A change of state (to inactive) associated with a level trigger in which

the scanner stops searching for symbols. (See Rising Edge.)

Fixed Symbol Length. Increases data integrity by ensuring that only one symbol

length will be accepted.

Flash Memory. Memory that can be changed by downloading new code and recalled

on power up.

Focal Length. The distance measured from the scanner to the center of the depth of

field, or

focal point.

Focus. The point at which the tip of the scan beam is at its narrowest.

Full Duplex. Auxiliary port data is sent directly to the host but not displayed on the

auxiliary port screen.

Gain. Optimal signal strength.

Good Match. The event occurring when a scanned symbol matches the master sym-

bol information that is stored in the memory of the device.

Good Read. A decode. The successful scanning and decoding of the information

encoded in a symbol.

Half Duplex. Auxiliary port data is sent directly to the host and displayed on the aux-

iliary port screen.

Host. A computer, PLC, or other device that is used to execute commands and pro-

cess data and discrete signals.

Host Port. The pins or connections on a scanner or other device that physically con-

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Microscan MS-4 Specifikace Strana 198