Cino FA470 - Manual (Page 238)

Command Descriptions
2-223
Get Record Count
(WF)
Descriptions
Request the total record count of Batch Mode
Available for F & L series
Packet Format
Prefix Opcode Status Length Parameter(s) LRC Suffix
7Eh D6h 00h 03h 00h 00h 00h <Null> D5h 7Eh
1 Byte 3 Bytes 1 Byte 2 Bytes 0 Byte 1 Byte 1 Byte
. Host Requirements
If the device successfully received the above command issued by the host, the device will pack all
requested parameters into a “Reply Record Count” message string then send to the host. Please refer
to the “Reply Record Count” command for details. Otherwise, a “Device NAK” will be sent to host to
indicate issue a command error. However, if the host can receive any response from the device within
the user preset time-out duration, please resend the above command.
. Parameter(s) Field
Get Device Status can request 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