我创建了一个用户自定义指令'getSetpoints',它通过串口读取一组数据,并自动将其转换为4位数字片段,并将其转储到名为GROUP#的列表中(#取决于用户的哪组数据希望)。列表被覆盖?
所有这些工作都很好,我可以在Python shell中打印这些数据,只需输入GROUP0,GROUP1,GROUP2等。运行getSetpoints()函数后,我知道它正在正确存储。但是,现在我想自动将我的GROUP0列表中的每个成员加载到其正确命名的变量(即,Lang_Style是GROUP0 [0],CTinv_Sign是GROUP0 [1]等)。我创建了decodeSP()来做到这一点,我在getSetpoints()结束时调用它。
唯一的问题是,在运行getSetpoints()之后,在python shell中键入Lang_Style(或任何其他的命名变量)时,它只返回0.请参阅下面的代码。我也包含了我的Python shell的输出。
我只是不明白GROUP0在用户定义的指令执行后如何保持它的数据,但其他变量每次都被置回零。据我所知,它是相同的。
# Define Variables (This is shortened to only show one GROUP...)
GROUP0 = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Lang_Style = 0
CTinv_Sign = 0
Freq = 0
PT_Ratio = 0
CT_Ratio = 0
DST = 0
System_Volts = 0
Gen_Phase = 0
Op_Mode = 0
Seq_Pref = 0
Re_Commit = 0
Bit_Address = 0
CRLF = bytearray ([0x0D, 0x0A])
RESULTS = [GROUP0, GROUP1, GROUP2, GROUP3, GROUP4, GROUP5]
def getSetpoints(group):
if 0 <= group <= 5:
# Send out the command for Display Setpoint, then group number, then CRLF.
s = serial.Serial('COM1', '9600') # serial port, baud rate
s.write("DP")
s.write(group)
s.write(CRLF)
temp = s.read(len(RESULTS[group])*6) # Each setpoint is 6 characters (space + x + 4 digits).
n = 0
for n in range(len(RESULTS[group])):
# RESULTS[group][n] = int(temp[2+n*6:6+n*6],16) # Use this one if you want Integers
RESULTS[group][n] = temp[2+n*6:6+n*6] # Cut out the space and the x, leaving only the 4 digits.
print RESULTS[group] # Debug Print
s.close()
decodeSP()
return
else:
print 'Invalid Group Number'
return
def decodeSP():
Lang_Style = GROUP0[0]
CTinv_Sign = GROUP0[1]
Freq = GROUP0[2]
PT_Ratio = GROUP0[3]
CT_Ratio = GROUP0[4]
DST = GROUP0[5]
System_Volts = GROUP0[6]
Gen_Phase = GROUP0[7]
Op_Mode = GROUP0[8]
Seq_Pref = GROUP0[9]
Re_Commit = GROUP0[10]
Bit_Address = GROUP0[11]
return
化Python Shell输出继电器:
================================ RESTART ================================
getSetpoints(0)
['0004', '0000', '003C', '0000', '00C8', '0001', '0078', '0101', '0000', '0003', '0001', '0001']
GROUP0
['0004', '0000', '003C', '0000', '00C8', '0001', '0078', '0101', '0000', '0003', '0001', '0001']
Lang_Style
0
Yay!感谢您解释两者之间的差异。 :) – Darksabre