Cino FA470 User Manual download pdf (Page 34)

Command Descriptions

2-19

Serial Trigger

(ALL)

Descriptions

Start or Stop a scan session

When triggered on, the scanner attempts to obtain the requested data. When triggered off, the

scanner aborts a decode attempt.

Packet Format

Prefix Opcode Status

Length

Parameter(s) LRC Suffix

7Eh

80h 02h 00h

00h 00h 01h

See <Table 1-2>

Variable

7Eh

1 Byte 3 Bytes 1 Byte 2 Bytes

1 Byte 1 Byte 1 Byte

. Host Requirements

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

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.

. Length

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

. LRC

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

Parameter(s)

< Table 1-2 > Serial Trigger Parameter(s) Field

Parameter / PID / Size Options Descriptions

Serial Trigger

PID : <Null>

Size : 00h 01h (1 Byte)

- 00h

- 01h

OFF

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 ... 250 251

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Cino FA470 User Manual Page 34