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ViSession rm;
ViSession vi1;
ViSession vi2;
ViUInt32 retCnt;
int status = 0;
int ret = 0;
status = viOpenDefaultRM(&rm);
status = viOpen(rm, (ViBuf)"TCPIP::192.168.21.222::INSTR",
VI_NULL, VI_NULL,&vi1);
status = viOpen(rm, (ViBuf)"TCPIP::192.168.21.223::INSTR",
VI_NULL, VI_NULL,&vi2);
status = viWrite(vi1, (ViBuf)"*IDN?", 5, &retCnt);
status = viRead(vi1, (ViBuf) buffer, sizeof(buffer), &retCnt);
status = viWrite(vi2, (ViBuf)"*IDN?", 5, &retCnt);
status = viRead(vi2, (ViBuf) buffer, sizeof(buffer), &retCnt);