def main():
'''
Create our window and comm driver
'''
global root
global comm
global ProductionCount
# create a comm driver
comm = PLC()
comm.IPAddress = ipAddress
# create a tkinter window
root = Tk()
root.config(background='black')
root.title = 'Production Count'
root.geometry('800x600')
# bind the "q" key to quit
root.bind('q', lambda event:root.destroy())
# create a labe to display our variable
ProductionCount = Label(root, text='n', fg='white', bg='black', font='Helvetica 350 bold')
ProductionCount.place(anchor=CENTER, relx=0.5, rely=0.5)
# call our updater and show our window
root.after(1000, UpdateValue)
root.mainloop()
comm.Close()
def audit_rack(plc):
'''
Query each slot for a module
'''
with PLC() as c:
c.IPAddress = plc.IPAddress
f.write('%s - %s\n' % (plc.IPAddress, plc.ProductName))
for i in range(17):
x = c.GetModuleProperties(i)
f.write('\tSlot %d:%s rev:%s\n' % (i, x.ProductName, x.Revision))
f.write('')
'''
Read a list of tags at once
Reading lists and arrays is much more efficient than
reading them individually. You can create a list of tags
and pass it to .Read() to read them all in one packet.
The values returned will be in the same order as the tags
you passed to Read()
NOTE: Packets have a ~500 byte limit, so you have to be cautions
about not exceeding that or the read will fail. It's a little
difficult to predict how many bytes your reads will take up becuase
the send packet will depend on the length of the tag name and the
reply will depened on the data type. Strings are a lot longer than
DINT's for example.
I'll usually read no more than 5 strings at once, or 10 DINT's)
'''
from eip import PLC
tag_list = ['Zone1ASpeed', 'Zone1BSpeed', 'Zone2ASpeed', 'Zone2BSpeed', 'Zone3ASpeed', 'Zone3BSpeed',
'Zone4ASpeed', 'ZOne4BSpeed', 'Zone1Case', 'Zone2Case']
with PLC() as comm:
comm = PLC()
comm.IPAddress = '192.168.1.9'
value = comm.Read(tag_list)
print(value)
'''
the following import is only necessary because eip.py is not in this directory
'''
import sys
sys.path.append('..')
'''
A simple single write using a with statement.
One advantage of using a with statement is that
you don't have to call .Close() when you are done,
this is handled automatically.
'''
from eip import PLC
with PLC() as comm:
comm = PLC()
comm.IPAddress = '192.168.1.9'
comm.Write('CurrentScreen', 10)
#================================================================
# Code for an reading an array from PLC and moving it into Excel
#================================================================
from eip import PLC
comm = PLC()
comm.IPAddress = '100.100.100.100'
' xArray is the PLC tag being read and 5 is the number of arrays to read
array = comm.Read('xArray[0]',5)
print (array)
[1234, 2345, 3456, 4567, 5678]
from openpyxl import Workbook
wb = Workbook()
ws = wb.active
for i, value in enumerate(array):
ws.cell(column=1,row=i+1,value=value)
<Cell 'Sheet'.A1>
<Cell 'Sheet'.A2>
<Cell 'Sheet'.A3>
<Cell 'Sheet'.A4>
<Cell 'Sheet'.A5>
wb.save('PLC_Read.xlsx')
'''
the following import is only necessary because eip.py is not in this directory
'''
import sys
sys.path.append('..')
'''
Write a program scoped tag
I have a program named "MiscHMI" in my main task.
In MiscHMI, the tag I'm reading will be TimeArray[0]
You have to specify that the tag will be program scoped
by appending the tag name with "Program" and the beginning,
then add the program name, finally the tag name. So our
example will look like this:
Program:MiscHMI.TimeArray[0]
'''
from eip import PLC
with PLC() as comm:
comm = PLC()
comm.IPAddress = '192.168.1.9'
comm.Write('Program:MiscHMI.TimeArray[0]', 2019)
'''
the following import is only necessary because eip is not in this directory
'''
import sys
sys.path.append('..')
'''
The simplest example of writing a tag from a PLC
NOTE: You only need to call .Close() after you are done exchanging
data with the PLC. If you were going to read/write in a loop or read/write
more tags, you wouldn't want to call .Close() every time.
'''
from eip import PLC
comm = PLC()
comm.IPAddress = '192.168.1.9'
comm.Write('CurrentScreen', 10)
comm.Close()
import cv2
from darkflow.net.build import TFNet
import numpy as np
import time
import tensorflow as tf
from eip import PLC
#There is no comms error checking in this program
#so if it cant find PLC it will hang up.
#I am pushing data to a PLC running CLX 5000 software
test = PLC()
# Set the I.P to youre CLX 5000 rack
test.IPAddress = "172.16.2.161"
config = tf.ConfigProto(log_device_placement=True)
config.gpu_options.allow_growth = True
with tf.Session(config=config) as sess:
options = {
'model': 'cfg/yolov2-tiny-voc.cfg',
'load': 'bin/yolov2-tiny-voc.weights',
'threshold': 0.2,
'gpu': 1.0
}
tfnet = TFNet(options)
colors = [tuple(255 * np.random.rand(3)) for _ in range(10)]
capture = cv2.VideoCapture(0)
#capture.set(cv2.CAP_PROP_FRAME_WIDTH,416)
#capture.set(cv2.CAP_PROP_FRAME_HEIGHT, 416)
'''
the following import is only necessary because eip.py is not in this directory
'''
import sys
sys.path.append('..')
'''
Write to a custom size string
WHen you create a custom size string, it is essentially
a UDT. We cannot write to them in the same way that we
can write to a standard size string.
In this case, we're going to write some text to the tag
String20, which is a custom string STRING20. We not only
have to write the data, we have to also write the length.
'''
from eip import PLC
with PLC() as comm:
comm = PLC()
comm.IPAddress = '192.168.1.9'
string_size = 20
text = 'This is some text'
values = [ord(c) for c in text] + [0] * (string_size - len(text))
comm.Write('String20.LEN', len(text))
comm.Write('String20.DATA[0]', values)
end = '\n'
# some tab space formatting
if len(name) >= 36: tabs = '\t'
if len(name) < 36 and len(name) >= 32: tabs = '\t' * 2
if len(name) < 32 and len(name) >= 28: tabs = '\t' * 3
if len(name) < 28 and len(name) >= 24: tabs = '\t' * 4
if len(name) < 24 and len(name) >= 20: tabs = '\t' * 5
if len(name) < 20 and len(name) >= 16: tabs = '\t' * 6
if len(name) < 16 and len(name) >= 12: tabs = '\t' * 7
if len(name) < 12: tabs = '\t' * 8
line = name + tabs + dtype + '\t' + offset + end
text_file.write(line)
# define our communication
comm = PLC()
comm.IPAddress = '192.168.0.167'
#comm.ProcessorSlot = 2
# uncomment one of the examples.
#ex_read('NewProductID')
#ex_readArray('ObjectValue[0]', 10)
#ex_multiRead()
#ex_write('ThisTag.Thingy', '107')
#ex_getPLCTime()
#ex_setPLCTime()
#ex_discover()
#ex_getTags()
def getDevices():
'''
Get all of the devices on the network
'''
with PLC() as comm:
return comm.Discover()
dtype = "Type: " + str(tag.DataType)
offset= "Offset: " + str(tag.Offset)
end = '\n'
# some tab space formatting
if len(name) >= 36: tabs = '\t'
if len(name) < 36 and len(name) >= 32: tabs = '\t'*2
if len(name) < 32 and len(name) >= 28: tabs = '\t'*3
if len(name) < 28 and len(name) >= 24: tabs = '\t'*4
if len(name) < 24 and len(name) >= 20: tabs = '\t'*5
if len(name) < 20 and len(name) >= 16: tabs = '\t'*6
if len(name) < 16 and len(name) >= 12: tabs = '\t'*7
if len(name) < 12: tabs = '\t'*8
line = name + tabs + dtype + '\t' + offset + end
text_file.write(line)
# define our communication
comm = PLC()
comm.IPAddress = '192.168.250.1'
#comm.ProcessorSlot = 2
# uncomment one of the examples.
#ex_read('NewProductID')
#ex_readArray('ObjectValue[0]', 10)
#ex_multiRead()
#ex_write('ThisTag.Thingy', '107')
#ex_getPLCTime()
ex_discover()
ex_getTags()
'''
the following import is only necessary because eip.py is not in this directory
'''
import sys
sys.path.append('..')
'''
Write an array of values
I have a tag called "LargeArray", which is DINT[10000]
We can write a list of values all at once to be more efficient.
You should be careful not to exceed the ~500 byte limit of
the packet. You can pack quite a few values into 500 bytes.
'''
from eip import PLC
values = [8, 6, 7, 5, 3, 0, 9]
with PLC() as comm:
comm = PLC()
comm.IPAddress = '192.168.1.9'
comm.Write('LargeArray[10]', values)
dtype = "Type: " + str(tag.DataType)
offset= "Offset: " + str(tag.Offset)
end = '\n'
# some tab space formatting
if len(name) >= 36: tabs = '\t'
if len(name) < 36 and len(name) >= 32: tabs = '\t'*2
if len(name) < 32 and len(name) >= 28: tabs = '\t'*3
if len(name) < 28 and len(name) >= 24: tabs = '\t'*4
if len(name) < 24 and len(name) >= 20: tabs = '\t'*5
if len(name) < 20 and len(name) >= 16: tabs = '\t'*6
if len(name) < 16 and len(name) >= 12: tabs = '\t'*7
if len(name) < 12: tabs = '\t'*8
line = name + tabs + dtype + '\t' + offset + end
text_file.write(line)
# define our communication
comm = PLC()
comm.IPAddress = '192.168.1.10'
#comm.ProcessorSlot = 2
# uncomment one of the examples.
#ex_read('NewProductID')
#ex_readArray('ObjectValue[0]', 10)
#ex_multiRead()
#ex_write('ThisTag.Thingy', '107')
#ex_getPLCTime()
#ex_discover()
#ex_getTags()
offset = "Offset: " + str(tag.Offset)
end = '\n'
# some tab space formatting
if len(name) >= 36: tabs = '\t'
if len(name) < 36 and len(name) >= 32: tabs = '\t' * 2
if len(name) < 32 and len(name) >= 28: tabs = '\t' * 3
if len(name) < 28 and len(name) >= 24: tabs = '\t' * 4
if len(name) < 24 and len(name) >= 20: tabs = '\t' * 5
if len(name) < 20 and len(name) >= 16: tabs = '\t' * 6
if len(name) < 16 and len(name) >= 12: tabs = '\t' * 7
if len(name) < 12: tabs = '\t' * 8
line = name + tabs + dtype + '\t' + offset + end
text_file.write(line)
# define our communication
comm = PLC()
comm.IPAddress = '192.168.1.10'
#comm.ProcessorSlot = 2
# uncomment one of the examples.
#ex_read('NewProductID')
#ex_readArray('ObjectValue[0]', 10)
#ex_multiRead()
#ex_write('ThisTag.Thingy', '107')
#ex_getPLCTime()
#ex_discover()
#ex_getTags()
'''
the following import is only necessary because eip.py is not in this directory
'''
import sys
sys.path.append('..')
'''
Read an array of values
I have a tag called "LargeArray", which is DINT[10000]
We can read as many of them as we'd like, which makes
reading arrays the most efficient way to read data.
Read will handle multi-packet replies.
We're going to pass Read() the tag and the number
to read.
'''
from eip import PLC
with PLC() as comm:
comm = PLC()
comm.IPAddress = '192.168.1.9'
values = comm.Read('LargeArray[0]', 500)
print(values)
'''
the following import is only necessary because eip.py is not in this directory
'''
import sys
sys.path.append('..')
'''
A simple single read using a with statement.
One advantage of using a with statement is that
you don't have to call .Close() when you are done,
this is handled automatically.
'''
from eip import PLC
with PLC() as comm:
comm = PLC()
comm.IPAddress = '192.168.1.9'
value = comm.Read('CurrentScreen')
print(value)
'''
the following import is only necessary because eip is not in this directory
'''
import sys
sys.path.append('..')
'''
The simplest example of reading a tag from a PLC
NOTE: You only need to call .Close() after you are done exchanging
data with the PLC. If you were going to read in a loop or read
more tags, you wouldn't want to call .Close() every time.
'''
from eip import PLC
comm = PLC()
comm.IPAddress = '192.168.1.9'
value = comm.Read('CurrentScreen')
print(value)
comm.Close()
from eip import PLC
test = PLC()
test.IPAddress = "172.16.2.161"
value = test.Read("Timer.ACC")
print(value)
#Write a value: test.Write("tagname", value)
ex: test.Write("python_Real", 2.0)
test.Close()
'''
the following import is only necessary because eip.py is not in this directory
'''
import sys
sys.path.append('..')
'''
Write a little faster by providing the data type
up front
This only really makes sense to do if you have to
write a lot of unique tags. Typically, when you write a
tag, it has to fetch the data type first. This only
happens the first time you read/write a uniuqe tag name.
If you have, for example, 1000 tags to write and they are
all unique, you would have have to fetch the data type,
then write the value, which is extra overhead.
If you pass the data type up front, it will skip that
initial read...
'''
from eip import PLC
with PLC() as comm:
comm = PLC()
comm.IPAddress = '192.168.1.9'
comm.Write('Zone1Case', 10, datatype=196)
'''
the following import is only necessary because eip.py is not in this directory
'''
import sys
sys.path.append('..')
'''
Get tag list from specific program
In this case, I had a program named MiscHMI,
this retrives the program scoped tags from
just that program
NOTE: This actually reads all of the tags from the
PLC, it returns only the list of tags from the
program you specified.
'''
from eip import PLC
with PLC() as comm:
comm.IPAddress = '192.168.1.9'
tags = comm.GetProgramTagList('Program:MiscHMI')
for t in tags:
print(t.TagName, t.DataType)
'''
the following import is only necessary because eip.py is not in this directory
'''
import sys
sys.path.append('..')
'''
Read a program scoped tag
I have a program named "MiscHMI" in my main task.
In MiscHMI, the tag I'm reading will be TimeArray[0]
You have to specify that the tag will be program scoped
by appending the tag name with "Program" and the beginning,
then add the program name, finally the tag name. So our
example will look like this:
Program:MiscHMI.TimeArray[0]
'''
from eip import PLC
with PLC() as comm:
comm = PLC()
comm.IPAddress = '192.168.1.9'
value = comm.Read('Program:MiscHMI.TimeArray[0]')
print(value)