8 symbology set symbology – Cino FA470 User Manual

Page 204

Advertising
background image

Command Descriptions

2-189

2.8 Symbology

Set Symbology

(ALL)

Descriptions

Change the desired one or more parameters of the Symbology settings

Packet Format

Prefix

Opcode

Status

Length

Parameter(s)

LRC

Suffix

7Eh

85h 00h 00h

00h

Variable

See Below

Variable

7Eh

1 Byte

3 Bytes

1 Byte

2 Bytes

Variable

1 Byte

1 Byte

Parameter(s)

First Parameter

………

Last Parameter

PID

Size

Options ………

PID

Size

Options

2 Bytes 2 Bytes Variable ……… 2 Bytes 2 Bytes Variable

See Next Page

. Host Requirements

If the device successfully received the above command issued by the host, a “Device ACK” will send to

the host right after the device performed the action. Otherwise, a “Device NAK will be sent to host to

issue a command error. However, if the host can not receive any response from the device within the

user preset time-out duration, please resend the above command.

. Parameter(s) Field

Set Symbology can change multiple parameters at one time, so it takes compound parameters.


. Length

Total size (bytes) of the Parameter(s) field

. LRC

”Opcode” XOR “Status” XOR “Length” XOR “Parameter(s)”


. Size

Total size (bytes) of the Options field

Advertising