INCON-M84/M86/M86R Manual

2.2 Function of "plcClose"

PLC task executes "plcClose" function when detects system shut down. In this function can clear I/O, flag and variable. For example, all auxiliary devices shall turn off when system shut down. Usually, flow control can not in this function.

void PLCAPI plcClose(struct Status &sts, struct PlcBlock &plc){ }

In order to prevent misoperation of auxiliary system during shutdown, you can set the state of output point during shutdown in plcClose to prevent misoperation of auxiliary system.

plcClose example:

#define inverterRun (plc.gdo[0].bit.bit00)　 //Output 0 is inverter run signal

                                                                                                       //1: turn on

                                                                                                      //0: turn off                                                                                      

int inverterFlag;   //inverter flag

int inverterSpeed;  //inverter speed

enum{IDLE=0, START, FINISH};

void PLCAPI plcClose(struct Status &sts, struct PlcBlock &plc){

 inverterRun = 0;

 inverterFlag = IDLE;

 inverterSpeed = 0;

}