CALL FB 102 , DB81
If_INV1 :=DB80.DBW62
If_INV2 :=DB80.DBW68
If_INV3 :=DB80.DBW74
If_INV4 :=DB80.DBW80
If_INV5 :=DB80.DBW86
If_INV6 :=DB80.DBW116
Is_INV_FACTOR:=2.764800e+001
Is_INV_OFFSET:=0.000000e+000
Is_INV_AHH :=
Is_INV_AH :=
Is_INV_AL :=
Is_INV_ALL :=
Os_INV1 :=DB80.DBD64
Os_INV2 :=DB80.DBD70
Os_INV3 :=DB80.DBD76
Os_INV4 :=DB80.DBD82
Os_INV5 :=DB80.DBD88
Os_INV6 :=DB80.DBD118
Os_INV1_AHH :=
Os_INV2_AHH :=
Os_INV3_AHH :=
Os_INV4_AHH :=
Os_INV5_AHH :=
Os_INV6_AHH :=
Os_INV1_AH :=
Os_INV2_AH :=
Os_INV3_AH :=
Os_INV4_AH :=
Os_INV5_AH :=
Os_INV6_AH :=
Os_INV1_AL :=
Os_INV2_AL :=
Os_INV3_AL :=
Os_INV4_AL :=
Os_INV5_AL :=
Os_INV6_AL :=
Os_INV1_ALL :=
Os_INV2_ALL :=
Os_INV3_ALL :=
Os_INV4_ALL :=
Os_INV5_ALL :=
Os_INV6_ALL :=
这是我们厂已经运行系统的一小段程序，功能按我理解就是六路模拟量转化工程量并且可以给出开关量报警，但是我打开FB102查看程序却没有发现任何算数运算，请大家帮忙分析是如何实现的，下边我把FB102里的程序贴出来，括号中的内容不是原程序中的
CALL #DI_CRP_IN （#DI_CRP_IN是程序中建立的静态数据）
INV_PER :=#If_INV1 （INV_PER是静态数据中的输入参数）
FACTOR :=#Is_INV_FACTOR （FACTOR是静态数据中的输入参数）
OFFSET :=#Is_INV_OFFSET （OFFSET 是静态数据中的输入参数）
START_ON:=FALSE （START_ON 是静态数据中的输入参数）
STARTVAL:= （STARTVAL是静态数据中的输入参数）
OUTV :=#Os_INV1 （OUTV 是静态数据中的输出参数）


L #DI_CRP_IN.OUTV
T #DI_LIMALARM.INV （#DI_LIMALARM是程序中建立的静态数据）

CALL #DI_LIMALARM
H_LM_ALM:=#Is_INV_AHH （H_LM_ALM是静态数据中的输入参数）
H_LM_WRN:=#Is_INV_AH （H_LM_WRN是静态数据中的输入参数）
L_LM_WRN:=#Is_INV_AL （L_LM_WRN是静态数据中的输入参数）
L_LM_ALM:=#Is_INV_ALL （L_LM_ALM是静态数据中的输入参数）
INV := （INV是静态数据中的输入参数）
HYS := （HYS是静态数据中的输入参数）
COM_RST :=#COM_RST （COM_RST是静态数据中的输入参数）
QH_LMALM:=#Os_INV1_AHH （QH_LMALM是静态数据中的输出参数）
QH_LMWRN:=#Os_INV1_AH （QH_LMWRN 是静态数据中的输出参数）
QL_LMWRN:=#Os_INV1_AL （QL_LMWRN 是静态数据中的输出参数）
QL_LMALM:=#Os_INV1_ALL （QL_LMALM是静态数据中的输出参数）

//------------INV2--------------------------------------------------------------------

CALL #DI_CRP_IN
INV_PER :=#If_INV2
FACTOR :=#Is_INV_FACTOR
OFFSET :=#Is_INV_OFFSET
START_ON:=FALSE
STARTVAL:=
OUTV :=#Os_INV2

L #DI_CRP_IN.OUTV
T #DI_LIMALARM.INV

CALL #DI_LIMALARM
H_LM_ALM:=#Is_INV_AHH
H_LM_WRN:=#Is_INV_AH
L_LM_WRN:=#Is_INV_AL
L_LM_ALM:=#Is_INV_ALL
INV :=
HYS :=
COM_RST :=#COM_RST
QH_LMALM:=#Os_INV2_AHH
QH_LMWRN:=#Os_INV2_AH
QL_LMWRN:=#Os_INV2_AL
QL_LMALM:=#Os_INV2_ALL

//------------INV3--------------------------------------------------------------------

CALL #DI_CRP_IN
INV_PER :=#If_INV3
FACTOR :=#Is_INV_FACTOR
OFFSET :=#Is_INV_OFFSET
START_ON:=FALSE
STARTVAL:=
OUTV :=#Os_INV3

L #DI_CRP_IN.OUTV
T #DI_LIMALARM.INV

CALL #DI_LIMALARM
H_LM_ALM:=#Is_INV_AHH
H_LM_WRN:=#Is_INV_AH
L_LM_WRN:=#Is_INV_AL
L_LM_ALM:=#Is_INV_ALL
INV :=
HYS :=
COM_RST :=#COM_RST
QH_LMALM:=#Os_INV3_AHH
QH_LMWRN:=#Os_INV3_AH
QL_LMWRN:=#Os_INV3_AL
QL_LMALM:=#Os_INV3_ALL

//------------INV4--------------------------------------------------------------------

CALL #DI_CRP_IN
INV_PER :=#If_INV4
FACTOR :=#Is_INV_FACTOR
OFFSET :=#Is_INV_OFFSET
START_ON:=FALSE
STARTVAL:=
OUTV :=#Os_INV4

L #DI_CRP_IN.OUTV
T #DI_LIMALARM.INV

CALL #DI_LIMALARM
H_LM_ALM:=#Is_INV_AHH
H_LM_WRN:=#Is_INV_AH
L_LM_WRN:=#Is_INV_AL
L_LM_ALM:=#Is_INV_ALL
INV :=
HYS :=
COM_RST :=#COM_RST
QH_LMALM:=#Os_INV4_AHH
QH_LMWRN:=#Os_INV4_AH
QL_LMWRN:=#Os_INV4_AL
QL_LMALM:=#Os_INV4_ALL

//------------INV5--------------------------------------------------------------------

CALL #DI_CRP_IN
INV_PER :=#If_INV5
FACTOR :=#Is_INV_FACTOR
OFFSET :=#Is_INV_OFFSET
START_ON:=FALSE
STARTVAL:=
OUTV :=#Os_INV5

L #DI_CRP_IN.OUTV
T #DI_LIMALARM.INV

CALL #DI_LIMALARM
H_LM_ALM:=#Is_INV_AHH
H_LM_WRN:=#Is_INV_AH
L_LM_WRN:=#Is_INV_AL
L_LM_ALM:=#Is_INV_ALL
INV :=
HYS :=
COM_RST :=#COM_RST
QH_LMALM:=#Os_INV5_AHH
QH_LMWRN:=#Os_INV5_AH
QL_LMWRN:=#Os_INV5_AL
QL_LMALM:=#Os_INV5_ALL

//------------INV6--------------------------------------------------------------------

CALL #DI_CRP_IN
INV_PER :=#If_INV6
FACTOR :=#Is_INV_FACTOR
OFFSET :=#Is_INV_OFFSET
START_ON:=FALSE
STARTVAL:=
OUTV :=#Os_INV6

L #DI_CRP_IN.OUTV
T #DI_LIMALARM.INV

CALL #DI_LIMALARM
H_LM_ALM:=#Is_INV_AHH
H_LM_WRN:=#Is_INV_AH
L_LM_WRN:=#Is_INV_AL
L_LM_ALM:=#Is_INV_ALL
INV :=
HYS :=
COM_RST :=#COM_RST
QH_LMALM:=#Os_INV6_AHH
QH_LMWRN:=#Os_INV6_AH
QL_LMWRN:=#Os_INV6_AL
QL_LMALM:=#Os_INV6_ALL


//--------------------------------------------------------------------------------
CLR
A #bSAVE // Restores the previously saved RLO status
SAVE
//--------------------------------------------------------------------------------
BE