==== PLC procedure Aliases ====

Let's suppose we have plasma cutting profile and M procedures for Cutting On (M71) and Cutting Off (M74)- 
  * М71 - Cutting On
  * М74 - Cutting Off

Q: What to do if need to cut g-code file from different CA</post-processor which uses different codes for Cutting On/Off (М3/М5 for example).

We need to run this codes M3/M5 exactly as our current codes М71/М74. There are 2 solutions in this case - bad and good :).
  - (**bad**) Add to PLC Builder 2 procedures М3 and М5 and copy content from M71 to M3 (Cutting On) and from M74 to M5 (Cutting Off), then Rebuild All procedures and send to Controller )press 3 buttons on th right side of PLC Builder widget - **Save**, **Rebuild All** and **Send**.  Con of this method: if you need to fix one of procedures (for example **M71**) then you need to do the same fixes in **M3** manually.
  - (**good**) Assign **М3** as Alias to **М71**, and **М5** as Alias to **М74**. In this case if you edit  and compile M71 procedure myCNC will automatically create identical binary procedure for M3 as well. No need to worry about it.

There is how to create Alias instruction below:

  - Open **PLC builder** (Settings -> Cfg -> PLC Builder -> Hardware PLC){{mycnc:mycnc-plc-builder-ru--2.png}}
  - Click in window **PLC Sources** line with Procedure М71
  - On the top-right side of PLC Builder window there will be Input Line for **Aliases**. Enter **M3** name there (if there are other names, add M3 with ";" separator {{mycnc:mycnc-plc-builder-ru--3.png}}
  - Click in **PLC Sources** om any other line AND CHECK if in the line with **M71** appear **M3** in brackets {{mycnc:mycnc-plc-builder-ru--4.png}}
  - Do the same for **M74** and add **M5** procedure as Alias {{mycnc:mycnc-plc-builder-ru--5.png}}
  - Press in series 3 buttons on righ side of PLC Builder - **Build All**, **Save All**, **Send** {{mycnc:mycnc-plc-builder-ru--6.png}}{{mycnc:mycnc-plc-builder-ru--7.png}}{{mycnc:mycnc-plc-builder-ru--8.png}}

М3 and М5 are ready to go!