Panasonic LP-400 Series, External Control Manual

Page: 71 / 180

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⿎ Readout data format
Start code
Single character
Command
Three characters
Sub command
Single character
Data
Variable length
Check sum
Two characters
Delimiter
Two characters/
single character
Head End
Code Description
Start code A start code is a code to identify the data head. STX (code:02(HEX)) fixed.
Command A command is specified with three characters. Refer to “3-6 Communication Command List” (P.74).
Sub command A sub command is an instruction of setting/readout complementary added to a command.
Specifies one of the characters below.
“S”: Data setting or operation (Set)
“R”: Readout of setting data (Read)
(Note) “S” or “R” cannot be selected for some commands.
Data Data specified per command
The content to be specified varies per command. Refer to “3-7 Command Description” (P.78).
Check sum *1 Check sum indicates the lower 1-byte of adding result of value (binary) from the start code to
the last data by converting it to two characters by ASCII code.
Ex. when the command is “ABC”, sub command is “A” and data is “000”:
02(HEX)+41(HEX)+42(HEX)+43(HEX)+41(HEX)+30(HEX)+30(HEX)+30(HEX)=199(HEX)
99(HEX), the lower 1-byte of 199(HEX) is converted to 39(HEX)+39(HEX), to two characters
by ASCII code.
ON/OFF of check sum can be selected on the environment setting of laser marker.
Refer to the Operation/Maintenance Manual for the details.
Delimiter *2 Delimiter is a code to identify the end of data.
CR+LF (0D(HEX) 0A(HEX)) or CR(0D(HEX)).
Selects CR+LF or CR on the console. Refer to the Operation/Maintenance Manual for the
details.
*1 : A check sum can be added in case of RS-232C.
*2 :
You can select [CR] or [CR+LF] for a delimiter in case of RS-232C. [CR] is fixed in case of Ethernet.
ME-LP400V-EX-6