不知对否，请参考

MAIN:

NETWORK 1

LD SM0.1

CALL SBR_0


NETWORK 2

LDN M0.0

TON T32, +12000 //T32定时器预置为12秒


NETWORK 3

LD T32
= M0.0 //修改



SBR_0:

NETWORK 1

LD SM0.1

MOVB 16#F8, SMB37 //Set control bits: count UP;

MOVD +0, SMD38 //Load CV

MOVD +10000000, SMD42 //Load PV

HDEF 0, 0

ATCH INT_0, 21 //Interrupt int_0:

ENI

HSC 0


INT_0:

NETWORK 1

LD SM0.0 //修改

MOVD HC0, VD0 //Set control bits: write current;

MOVB 16#C0, SMB37 //CV = 0;

MOVD +0, SMD38

HSC 0

CRETI