SICK CLV490 Instrukcje Operacyjne Pobierz pdf (Strona 260)

Chapter 10 Operating Instructions

CLV490 Bar Code Scanner

Appendix

SMART decoder

Specially developed Ö decoder for reading bar codes with an extremely small code height

and for poor-quality or contaminated code prints.

Specification diagrams

Diagrams for reading the resolution-specific depth of field (DOF) for specific focus positions.

Splitter

Data block in the reading result of the Ö host interface. Used to separate the data content

of the bar codes. Contains up to 5 elements, consisting of constants (control characters,

letters, digits), depending on the configuration. The "Splitter" block is empty in the default

setting of the CLV490.

Standard decoder

Tried-and-tested Ö decoder from the CLV490 product family. Suitable for applications with

an adequate code height, limited tilt, and high-quality code prints.

Start/stop mode

With this type of separate reading pulse, only one object is located in the reading field for

each reading pulse. If the CLV490 is used in a stand-alone configuration, the start and end

of the reading pulse are controlled by external sensors, command strings, or with the free

running mode of the CLV490. If used in conjunction with other CLVs in a master/slave ar-

rangement including the OTC400 (e.g. omnidirectional 2-side reading), the CLV490 receives

the reading pulses via the OTC400. In this case, the size of the reading field is determined

by the distance between the two external sensors for starting (start of reading field) and

stopping (end of reading field) the reading pulse. The minimum reading distance between

two objects must always be greater than the size of the reading field. The devices are con-

nected via the CAN interface.

Storage in the CLV490

The application-specific Ö parameter set can be stored temporarily or permanently in the

CLV490. If it is stored temporarily in the RAM, it is lost as soon as the power supply is

switched off. Parameter sets that are stored permanently are transferred to the EEPROM in

the CLV490 and remain active as the current data record when the power supply is

switched off. The default setting is not affected by this and is stored in a read-only memory

(ROM).

Switching sequence

Focus control function for event-controlled switching. Sequence of focus position settings

with associated depths of field. The numbers of the active Ö distance configurations are en-

tered at the required position in the assignment table for this purpose.

System messages

Messages Ö in plain text used to output the operating status of the CLV490. The messages

are output on the auxiliary interface only and can be displayed in extended mode in the T

ER-

MINAL EMULATOR of the "CLV-Setup" program.

1 2 ... 255 256 257 258 259 260 261 262 263 264 265 ... 269 270

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