求教！急，在线等

我的原理图是由两个.SCH组成的，请问如何将两个连接起来，生成正确的网络表？第二个原理图是ADC采样电路。第一个主控芯片是2407，就是交ADC采样的值输入到2407。下面是ERC检查的WARING 和ERROR

Report For : Documents\Full.Sch 25-May-2007 17:49:13
#1 Warning Unconnected Input Pin On Net ADCIN0
LF2407A.SCH(U1-112 @290,1340)
#3 Error Floating Input Pins On Net ADCIN0
Pin LF2407A.SCH(U1-112 @290,1340)
#4 Warning Unconnected Input Pin On Net ADCIN1
LF2407A.SCH(U1-110 @290,1330)
#6 Error Floating Input Pins On Net ADCIN1
Pin LF2407A.SCH(U1-110 @290,1330)
#7 Warning Unconnected Input Pin On Net ADCIN2
LF2407A.SCH(U1-107 @290,1320)
#9 Error Floating Input Pins On Net ADCIN2
Pin LF2407A.SCH(U1-107 @290,1320)
#10 Warning Unconnected Input Pin On Net ADCIN3
LF2407A.SCH(U1-105 @290,1310)
#12 Error Floating Input Pins On Net ADCIN3
Pin LF2407A.SCH(U1-105 @290,1310)
#13 Warning Unconnected Input Pin On Net ADCIN4
LF2407A.SCH(U1-103 @290,1300)
#15 Error Floating Input Pins On Net ADCIN4
Pin LF2407A.SCH(U1-103 @290,1300)
#16 Warning Unconnected Input Pin On Net ADCIN5
LF2407A.SCH(U1-102 @290,1290)
#18 Error Floating Input Pins On Net ADCIN5
Pin LF2407A.SCH(U1-102 @290,1290)
#19 Warning Unconnected Input Pin On Net ADCIN6
LF2407A.SCH(U1-100 @290,1280)
#21 Error Floating Input Pins On Net ADCIN6
Pin LF2407A.SCH(U1-100 @290,1280)
#22 Warning Unconnected Input Pin On Net ADCIN7
LF2407A.SCH(U1-99 @290,1270)
#24 Error Floating Input Pins On Net ADCIN7
Pin LF2407A.SCH(U1-99 @290,1270)