Exploration Data from Digi-SM500 using terminal
I only explored using digiwtcp and .dat files. I'm not a developer of digiwtcp, digi-Net and Digi-Map
The SM-500MK4 system scale with fast processing and printing speeds up to 150mm/s, will be your best companion to increase throughput and operation efficiency during busy times. SM-500MK4
There are 2 ways to insert data into weighing machine, such as the manual method and using a supporting application. The manual method is by entering data one by one through the keyboard on the scales. This requires a long processing time and is prone to errors.
The second way is by using supporting applications such as Digi-Map and digi-Net. The Digi-Map application functions to map input from csv into .mdb while digi-Net sends data in .mdb to the weighing machine. Although this is faster than manual, there is vulnerability in mapping, it takes up a lot of work, so it becomes a burden for operations
To overcome the problem of entering data into the scales automatically, several questions were encountered
- How to skip the Digi-Map and digi-net process?
- What files are sent to the weighing machine?
- What formats are sent to the weighing machine?
after looking for the use of digi SM500 found the digiwtcp can send files to the scales using the format
digiwtcp.exe WR SM192.168.168.1F37.DATWR is command
192.168.168.1 is IP Machine of Weighning
37 is Table what used
WR function means it will write a file into the weighing machine. Some of the commands available and this is case sensitive :
- RD - read
- WR - write
- DEL - delete
- DELFI - delete file
- RD_DEL - read and then delete
digiwtcp will generate a result file after doing the process of sending the file, which contains the ip and the results of the process. that below is meaning of result and can use it in json
0 = no error
-1 = Open file error
-2 = Read from file error
-3 = Write to file error
-4 = Network initialize error
-5 = Network open error
-6 = Network read error
-7 = Network write error
-8 = Machine read error
-9 = Machine write error
-10 = Machine no record error
-11 = Machine space error
-12 = Undefined error
for documentation please look at doc/TWSWTCP.pdf
Like the example above to send a file using the .DAT format which contains numbers in hex format. Then F37 as a table is used in operations. Try to read other tables using command :
digiwtcp.exe RD 1 192.168.168.1 if wrong command in terminal will appear error
Syntax: DIGIWTCP command file_num machine_1 [machine_2 ... machine_n]After read file from machine will find many empty and filled tables. If it is empty then it will write code 'E2' and it contains data will write Hex data
for generate file from all file then using this in python
import os, time as t
for i in range(1,100):
a = f"digiwtcp.exe RD {i} 192.168.168.125"
print(a)
os.system(a)
t.sleep(5)When open a .dat file from a weighing machine and find a long number format in hex. Based on the documentation from doc/jbptunikompp-gdl-s1-2006-didinjamal-2857-jurnal_d-n.doc in table 3-1 and adapted to the Digi-Map and Digi-Net applications then 1 data ends at C000.
as an example
00000004004A00005D208D010000001109320004000000000997000000000000000000000000800060000000000000000000000713494D424F4F5354204C4F5A454E4745532035530C00
when made into the description table
| No | Description | Length | Example | Remark |
|---|---|---|---|---|
| 1 | PLU NUMBER | 8 | 00000004 | Id of record or PLU code |
| 2 | PLU RECORD SIZE | 4 | 004A | Length of record. Hex Format. 4A=74(DEC) 74*2=148 |
| 3 | PLU STATUS | 4 | 0000 | Default format from Digi-Net |
| 4 | PLU STATUS 2 | 6 | 5D208D | Default format from Digi-Net |
| 5 | UNIT PRICE | 8 | 01000000 | =1.000.000/Kg |
| 6 | LABEL 1 FORMAT | 2 | 11 | Default format from Digi-Net |
| 7 | BARCODE FORMAT | 2 | 09 | Default format from Digi-Net |
| 8 | EAN DATA | 14 | 32000400000000 | 32 = code barcode 0004 = plu code |
| 9 | USED BY DATE | 4 | 0997 | Default format from Digi-Net |
| 10 | DEF1 | 50 | 000000000000000 000000000800060 000000000000000 0000007 |
Default format from Digi-Net |
| 11 | Name Record Size(NRS) | 2 | 13 | Length of name record. Hex Format. 13=19(DEC) (19+1)*2=40 |
| 12 | COMMODITY NAME | (NRS+1)*2 (19+1)*2=40 |
494D424F4F5354 204C4F5A454E47 45532035530C | 49=I, 4D=M, 42=B ... then IMBOOST LOZENGES 5S |
| 13 | BCC | 2 | 00 | Default format from Digi-Net |
On record length data to prove this field by calculating the length of the record. because in hex it is considered 2 characters so it must be multiplied by 2. Example 4A(HEX) = 74(DEC) that mean there are 148 char (74 * 2 ). to make it easier calculate from hex to dec, please look references [2]
>>> A = "00000004004A00005D208D010000001109320004000000000997000000000000000000000000800060000000000000000000000713494D424F4F5354204C4F5A454E4745532035530C00"
>>> len(A)
148Same as data record length to prove the field name record size by calculating the length of the record. because in hex it is considered 2 characters so it must be multiplied by 2 which was previously added by 1 due to the addition of C0. Example
>>> A = "494D424F4F5354204C4F5A454E4745532035530C"
>>> len(A)
40
>>> B = "IMBOOST LOZENGES 5S"
>>> len(B)
19
For convert COMMODITY NAME from HEX to ASCI then use code below :
def my_convert_hex(hex_string):
bytes_object = bytes.fromhex(hex_string)
return bytes_object.decode("ASCII")or to look easier hex to ascii please look reference [1]
Please using wine to run the digiwtcp with same command for RW
wine digiwtcp [command] SM[IP]F[table].DATand for RD and DEL_FI
wine digiwtcp [command] [table] [IP]