The document discusses Lua scripting capabilities for edge calculation on We-Con Vbox devices. It provides examples of importing, exporting, synchronizing, and debugging Lua scripts. Specific examples demonstrated include transferring data between addresses, arithmetic operations, and sending short messages based on input conditions. Supported Vbox models for edge calculation using Lua are listed.

1. http://www.we-con.com.cn/en/
Lua configration

2. Contents
Vbox edge calculation01
02 Lua script interface

3. Edge calculation
1."Edge calculation" supports to calculate with lua language.Lua is a powerful,efficient,
lightweight, embeddable scripting language. It supports procedural programming,
object-oriented programming, functional programming, data-driven programming,and
data description.
Which model of Vbox supports “edge calculation”?
Model Edge calculation
S-4G Yes
S-00 Yes
S-3N Yes
S-NG Yes
E-00 No
E-2G No

4. 2."Edge calculation" inludes:
Import:import new script from computer,and the original scripts will be cleared if
import new scripts.
Export:export “vbox.script” to computer.But user can not program it
Sync series:update script into vbox in batches
Delete series:delete script into vbox in batches
New:creat new script.Up to five new scripts can be added
Mode:
initialization,timing,
execute if disconnect:execute one time after Vbox disconnects server.
execute if connect:execute one time after Vbox connects server.
Debug:test script and check result.In general,user will print different text to test
whether script is correct.

5. 3.Make a simple demo
step1:click “new”
step2:Enter script name “Test” , choose timing mode and click “save and next”

6. step4:Enter print(“happy new year”) and save
script format:function .main()
step5:click “Edge calculation” and “Sync”.If “synchronization” is successful,the status
will display green.

7. step6:if the status display green,then click “Debug” to test result.
Click the button OFF--> ON,the text “happy new year” will print every second.

8. Lua script demo
1.Address Operation:transfer data from address A to B
Demo1: D2 to D0
Depend on diffferent format of data.Vbox open different script functions.for example.
addr_setshort(addr,num) Function: Write 16-bit signed decimal address
addr_getshort(addr) Function: Read 16-bit signed decimal address
addr_getword(string addr)Function: Read 16-bit unsigned decimal address
More script function are in the second section of “V-BOX Script Interface Manual”

9. Demo2:Arithmetic
Demo3:set 100 to D0--D19

10. Demo3:short message(test version)
if M0 rising edge,send “temperature alarm”
if M0 falling edge,send “temperatuer alarm solved”
Only vbox with 4G module that can support short message

11. Thank you