记录python采集modbus数据传送到pyqt趋势图控件的偶然错误

谁能帮忙解决这个错误，悬赏50块红包！
第1个数据： 563
第2个数据： 219
采集的数据是 219
(563, 219)
第1个数据： 563
第2个数据： 219
采集的数据是 219
(563, 219)
第1个数据： 563
第2个数据： 219
采集的数据是 219
(563, 219)
第1个数据： 563
第2个数据： 219
采集的数据是 219
(563, 219)
第1个数据： 563
第2个数据： 219
采集的数据是 219
(563, 219)
第1个数据： 563
第2个数据： 219
采集的数据是 219
(563, 219)
第1个数据： 563
第2个数据： 219
TypeError
Python 3.8.5: C:\Users\lhd_m\AppData\Local\Programs\Python\Python38\python.exe
Sun Nov 13 15:32:02 2022

A problem occurred in a Python script. Here is the sequence of
function calls leading up to the error, in the order they occurred.
TypeError: Line() missing 1 required positional argument: ‘yinput’
cause = None
class =
context = None
delattr = delattr’ of TypeError object>
dict = {}
dir =
doc = ‘Inappropriate argument type.’
eq = eq’ of TypeError object>
format =
ge = ge’ of TypeError object>
getattribute = getattribute’ of TypeError object>
gt = gt’ of TypeError object>
hash = hash’ of TypeError object>
init = init’ of TypeError object>
init_subclass =
le = le’ of TypeError object>
lt = lt’ of TypeError object>
ne = ne’ of TypeError object>
new =
reduce =
reduce_ex =
repr = repr’ of TypeError object>
setattr = setattr’ of TypeError object>
setstate =
sizeof =
str = str’ of TypeError object>
subclasshook =
suppress_context = False
traceback = None
args = (“Line() missing 1 required positional argument: ‘yinput’”,)
with_traceback =

The above is a description of an error in a Python program. Here is
the original traceback:

TypeError: Line() missing 1 required positional argument: ‘yinput’