俺是个s7-400新手，以下的程序是从机台download的，想在"di_input".p_blade1_stop之前加上一秒的延时。各位请务必执教。小弟感激不尽！！
CALL "COM_FAN" , "VACUUM_BLADE1"
start :="di_input".p_blade1_start
stop :="di_input".p_blade1_stop
blg :="log_aux_db".k_emergency
run :=TRUE
fuse_drive :=TRUE //"di_input".fuse_blade_1
prot_drive :="di_input".prot_drive_blade_1
stop_ftc :=FALSE
decr :="log_aux_db".k_decrease_line
up :="di_input".p_blade1_incr
dw :="di_input".p_blade1_decr
b_start :="di_output".b_start_blade1_2
b_stop_ramp :=DB120.DBX40.1
b_stop :="di_output".b_power_blade1
b_up :=DB120.DBX40.7
b_dw :=DB120.DBX40.6
value :=DB120.DBW24
alt_setpoint:=DB120.DBW14