11 G-code ApplicationDVP-PM Application Manual 11-1Details about G-code instructions are explained in previous chapters. In this chapter, we will focus on G-codeapplications which improve the usability by various G-code download methods and enhance the operation stabilityby advanced G-code application (mainly used on dispensing machine).The CNC (Computer Numerical Control) machines applying G-codes have the same operation methods andfunctions, therefore the PLC program for CNC machine do not need to be modified for different CNC machines.Users only need to preset the source of G-codes:1. HMI: editing and storing G-codes on HMI,2. Memory card: convert the file on CAM software into G-codes. Store the G-codes in memory card and insertthe card into the slot on CNC machine,3. PC(NB): directly download the G-codes into CNC machine from PC(NB).When the source is preset, you can select one of the 3 sources (HMI, memory card or PC) by HMI and performthe control requirement.To achieve the above G-code download requirements on different sources, DVP-PM00M provides 2 methods fordownloading G-codes to CNC: PMGDL software and specific HMI. Before explaining the two download methods,we need to know the program download settings on DVP-PM00M.11.1 DVP-PM00M Program Download with PEP settingWhen programs are downloaded to DVP-PM, the DVP-PM programs without PEP protection will be cleared firstthen the new program will be downloaded to the program area without PEP protection as below [OX0 in (A), (B)].Motion subroutines (G-codes) in DVP-PM are directly called by O100 main program or P subroutines which arecalled by O100 main program. Therefore, to prevent O100 or P subroutines from being cleared and makingG-codes invaid, PEP settings are usually enabled on O100 and P subroutine to protect the constant programs.(A) No PEP protectiona. Original 20PM programs b. Clear the programs c. Download new OX(B) With PEP protectiona. Original 20PM programs b. Clear the programs c. Download new OX
