User manual

ACME Electronic Machinery Co., Ltd. ACME
2012/6/20
22
RS-232 Protocol (Data Format)
ACME MMC10-A Leather Measurement Module has RS232 function to interface
external devices.
The RS232 protocol can be seen in the figure below.：
ACME MMC10-A Communication Protocol (Data Format)
1 2 3 4 5 6 7 8 9 10
Leading
Code
Returne
d
Value
Command
Code
Item
Number
Unit Deducted
Area
Reserve Real
Area
Check
Sum
Ending
Code
“~”
ASCII
“0” or
“1”
ASCII
“10”
ASCII
XXXX
ASCII
(HEX)
XX
ASCII
XXXX
ASCII
(BCD)
X
ASCII
,XXXX
ASCII
(BCD)
XX
ASCII
(HEX)
0Ah+0Dh
Hexadecimal
(HEX)
1 Byte 1 Byte 2 Bytes 4 Bytes 2 Bytes 4 Bytes 1 Byte 5 Bytes 2 Bytes 2 Bytes
＊ Leading Code：Start of encapsulation。
＊ Returned Value：”0”  Correct，”1” Error。
＊ Command Code：Code “10” indicate to transmit the result of measured。
＊ Item Number：represent the sequence number of the measured。
＊ Unit：00  FT
2
，01  IN，02  DM，03  M
2
。
＊ Deducted Area：4 bytes deducted area (Use external key pad to deduct)。
＊ Reserve：Future use。
＊ Real Area：Real Area (5bytes：”,” + 4bytes)。the ”,” is a splitter。
＊ Check Sum：Exclusive-OR Sum  from Returned Code to Real Area。Can do not care。
＊ Ending Code：The Ending Code is to represent the end of record。
※
The measure machine output data using fixed baud rate (19200,8,N,1).
The ending code “CHR(10)+ CHR(13)” is not show on the PC Terminal.
~01000100005500,05602F  05.60 – 0.1 = 05.50 deducts 0.1
The above record can be split and reference Communication Protocol as follow:
EX: 1 2 3 4 5 6 7 8 9 10
~,0,10,0010,00,0550,0,,0560,2F,CHR(10)+ CHR(13)
~010000F0010901,111053 CHR(10)+ CHR(13)  deducts 0.2
~010000E0008800,091050  deducts 0.3
~010000D0009300,09705D  deducts 0.4