Weidmüller WCU 501 User manual

Logic Unit WCU 501, WCU 650
Manual
Letʼs connect.

22530270000/01/12.2017Manual WCU logic units
1 About this documentation 3
1.1 Scope 3
1.2 Symbols and notes 3
1.3 Complete documentation 3
2 Safety 4
2.1 General safety notice 4
2.2 Intended use 4
3 Device description 5
4 Assembly and installation 6
4.1 Installing the device 6
4.2 Installing connections 6
5 Commissioning 7
5.1 Installing the software 7
5.2 Connecting the PC 7
5.3 Starting the program 8
6 Conguration 9
6.1 Creating a project 9
6.2 Operating the programming interface 9
6.3 Function block library 10
6.4 Simulation 11
6.5 Loading the program to the logic unit 12
6.6 Online observation 13
6.7 Example project 14
7 Technical data 15
8 Ordering data 17
Manufacturer
Weidmüller Interface GmbH & Co. KG
Klingenbergstraße 16
D-32758 Detmold
T [phone]
F [phone]
www.weidmueller.com
Document no.: 2530270000
Revision 01/December 2017
Content

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1.1 Scope
This manual describes the WCU 501 and WCU 650 logic
units and contains an introduction to programming with the
miCon-L software. Further information on programming can
be found in the online software documentation. All informa-
tion relates to Version 3.6 of miCon-L.
1.2 Symbols and notes
The safety notices in this documentation are designed ac-
cording to the severity of the danger.
DANGER
Imminent risk to life!
Notes with the signal word "Danger" warn
you of situations which will result in serious
injury or death if you do not follow the in-
structions given in this manual.
WARNING
Possible danger to life!
Notes with the signal word "Warning" warn
you of situations which may result in serious
injury or death if you do not follow the in-
structions given in this manual.
CAUTION
Risk of injury!
Notes with the signal word "Caution" warn
you of situations which may result in injury
if you do not follow the instructions given in
this manual.
ATTENTION
Material damage!
Notes with the signal word "Attention" warn you of hazards
which may result in material damage.
Text next to this arrow are notes which are not
relevant to safety, but provide important informa-
tion about proper and effective work procedures.
The situation-dependent safety notices may contain the fol-
lowing warning symbols:
Symbol Meaning
Warning about dangerous electrical volt-
age
All work must be carried out by qualied
electricians.
Observe the documentation
▶All instructions can be identified by the black triangle
next to the text.
–Lists are marked with a dash.
1.3 Complete documentation
▶Please also note the quick start guide provided
with the product.
All documents can also be downloaded from the
Weidmüller website.
1 About this documentation

42530270000/01/12.2017Manual WCU logic units
2 Safety
2.1 General safety notice
Always disconnect the power supply to the rele-
vant part of the system and the logic unit before
working with the product and secure the system
against being switched on again unintentionally.
The device must only be installed by qualied
electricians who are familiar with national and
international laws, provisions and standards.
Follow these instructions and keep the docu-
mentation so it is accessible to all users at all
times.
2.2 Intended use
The logic units in the WCU range are compact controllers for
use in industrial environments and within the technical data
described. They cannot be used in life-preserving, medical or
safety-related applications or in explosion-risk environments.
Observance of the documentation is also part of the intend-
ed use.
If the equipment is used in a manner not specied by the
manufacturer, the protection provided by the equipment may
be impaired.

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The WCU logic unit is a graphically programmable compact
controller with digital inputs, analogue inputs, digital outputs
and a CAN interface. All plug-in connectors are pluggable
spring-type terminals for a wire cross-section of 0.25 to 1.5
mm². The power supply is via the 2-pole plug-in connectors
+VDD and GND. An external miniature fuse must be provid-
ed (see technical data).
On a logical HIGH, the supply voltage is switched to the out-
put activated. OUT5 for WCU501 and OUT9 for WCU650
are ground-switching outputs with PWM functionality. These
outputs have no short-circuit protection!
The logic unit is connected to a PC running a Windows®
operating system (Windows®7 or higher) using the corre-
sponding adapter.
WCU 501 logic unit
WCU 650 logic unit
Overview of WCU 650 connections
Colour Connection Function
Red +VDD
Power supply
Black GND
Yellow CANH & CANL CAN bus
Green IN1 to IN6 Analogue inputs
Blue IN7 to IN10 Digital inputs
OUT1 to OUT8 Digital outputs
Magenta OUT9 PWM output
TTL-232 PC connection
Programming software
The logic function block is programmed via the miCon-L
software, which is provided by Weidmüller without the need
for a licence. You can also work with the software when the
logic unit is not connected to your PC. The following options
are available online and ofine:
–Create programs
–Run program simulations
The software provides the following features:
–Extensive function component library
–Data visualisation option
–Program simulation and debugging
–Communication via RS-232/TTL232 or USB
3 Device description

62530270000/01/12.2017Manual WCU logic units
WARNING
Possible danger to life!
Always disconnect the power supply to the
relevant part of the system and the logic unit
before working with the product and secure
the system against being switched on again
unintentionally.
4.1 Mounting the device
WCU 501
▶Clip the device on to a standard TS35 terminal rail using
the clip-in foot on the back.
WCU 650
There are three ways of tting the WCU 650.
▶Clip the device on to a standard TS35 terminal rail using
the clip-in foot on the back.
Or
▶Dismount the clip-in foot on the back and attach the
device using 2 M4 screws through the drill holes on the
side.
Or
▶Secure the device with 4 3.6 mm cable ties through the
slots in the corners.
4.2 Installing the connections
The wires to be connected can have a cross section of 0.25
to 1.5 mm². We recommend using wire-end ferrules in order
to make secure connections.
▶Make the connections as shown in the pin assignment
(see printing on the logic unit).
▶Connect the power supply via the +VDD and GND 2-pole
plug-in connectors.
Make sure the polarity of the power supply is
correct.
▶Make sure that an external fuse is provided (max. 5 A for
WCU 501 and 8 A for WCU 650).
WCU 501 pin assignment
IN1 IN2 IN3 IN4 IN5
OUT1 OUT2 OUT3 OUT4 OUT5
+VDD GND
RS232
GND
TX
RX
LED
IN3 ... IN5
IN1 ... IN2
OUT1 ... OUT4
OUT5
+VDD ... GND
RS-232
Analogue inputs 0 ... 30 V
Digital inputs up to 1 kHz
Digital outputs, plus-switching
PWM output, minus-switching
Power supply
PC connection via USB/RS-232
adapter
WCU 650 pin assignment
IN1 ... IN6
IN7 ... IN10
OUT1 ... OUT8
OUT9
+VDD, GND
CANH, CANL
TTL-232
Analogue inputs 0 ... 30 V
Digital inputs up to 1 kHz
Digital outputs, plus-switching
PWM output, minus-switching
Power supply
CAN 2.0A/B interface
PC connection
4 Mounting and installation

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5.1 Installing the software
System requirements
–Processor with at least 500 MHz
–At least 256 MB RAM
–Hard drive: approx. 200 MB free space
–Monitor resolution 1024 x 576 or higher
–Windows®operating system (Windows®7 or higher)
You need administrator permissions to install the
USB driver.
In order to program the logic unit, you need the miCon-L soft-
ware. This is available to download free-of-charge, including
documentation and sample programs, from the Weidmüller
website (product catalogue).
▶Enter the order number for your logic module in the prod-
uct catalogue.
▶Click on "Downloads" and download the programming
software.
This downloads the le "WM_miConL.zip".
▶Open the folder in which you have saved the zip file and
extract the file.
An extracted folder "WM_miConL" appears.
▶Install the miCon-L software from the "WM_miCon-L"
folder by running "miCon-L_WM_DE_V3.6.exe".
IMPORTANT: select C:\miCon-L\... as the target
directory and follow the instructions in the soft-
ware.
▶Install the USB driver from the "...miCon-L/SETUP/
USBdriver" folder by running the file "CDM20828_Setup.
exe".
▶Switch on the supply voltage to the logic unit.
5.2 Connecting the PC
The logic unit is connected to the USB port of the PC.
WCU 501
Connecting the WCU 501 requires the RS232 cable (order
no. 2515030000) and a standard RS232 USB converter.
Both are supplied with the WCU 510 starter kit.
WCU 650
To connect the WCU 650, you need the USB programming
adapter USB/TTL-232 (order no. 2515020000). The adapter
is provided in the WCU 650 starter kit.
▶Plug the adapter into the connection on the logic unit.
With the WCU 650, make sure the connecting
plugs are plugged in in the right direction.
Plug-in direction of PC connection on WCU 650
▶Connect the adapter cable to the USB port on the PC.
5 Commissioning

Commissioning
82530270000/01/12.2017Manual WCU logic units
5.3 Starting the program
▶Double-click on the program icon to start the
program.
This opens the start window.
Start window
▶To configure the serial interface, click on the "Configure
serial interface" button.
This opens the "Settings" window. The serial interfaces avail-
able are displayed.
"Settings" window
▶Select your interface and confirm by pressing "OK".
You can work out which is the interface to the
logic unit by disconnecting the USB cable briey
and reconnecting it. The interface that disappears
from the list and then reappears is the interface to
the logic unit.
▶In order to open the programming interface, click on the
"Start miCon-L graphical programming" button.
This opens the programming interface.
Programming interface

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6.1 Creating a project
Creating a new project
▶Click on the "New Project" icon.
The "New Project" window opens.
"New Project" window
▶To select your control, double-click on "WCU-XXX"
▶Select the correct control.
▶Enter a project name of your choosing.
▶If you wish, you can also select a new file location.
▶Confirm by pressing OK.
The programming interface for the newly created project is
displayed.
Programming interface for the new project
6.2 Operating the programming interface
The programming interface is split into four areas.
1
2 3
4
Working environment for miCon-L software
1 Program tree
2 Programming interface
3 Current selection
4 Selection area (libraries, favourites)
The new project already contains a program which causes
the status LED to ash. Below is an example of how you
can add an output (OUT1) to the circuit. This output (OUT1)
should switch in the same cycle as the status LED.
▶Select the appropriate function block from the library (e.g.
digital output).
The selected function block is displayed in the top right cor-
ner.
Add function block
▶Drag the selected function block to the programming
interface.
The "Digital Output" window opens.
6 Conguration

Configuration
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"Digital Output" window
▶Assign the name OUT1 to the output and confirm by
pressing OK.
▶To link the function blocks to one another, first click on
the input for the new function block (function block 4)
and then on the output for the function block to connect
it to (function block 2).
1.
2.
Connecting function blocks
The connection between the function blocks is displayed.
Function blocks connected
6.3 Function block library
▶In order to receive information on a function block in the
programming interface, open the context-specific menu
by right-clicking on the function block.
▶Click on "Help".
Context specific function block menu
miCon-L website contains a list of all function blocks with
detailed explanations.
The remanent blocks write into an EEPROM mem-
ory. The number of writing cycles is limited to
100,000.

Conguration
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6.4 Simulation
Please note that "Simulation" as described on the miCon-L
website and in this manual is also known as "Observation".
The simulation tests the program for functionality and errors.
No control needs to be connected.
You can:
–Switch inputs
–Change parameters
Start simulation
▶Click on the "Simulation" icon.
The simulation window opens.
Simulation window
▶If you have not yet done so, open up the "&MAIN" tree.
Open the program tree
▶If you have not yet done so, open "$PROGRAM" by dou-
ble-clicking on it.
This starts simulation.
Simulation
▶In order to change a parameter, click on the relevant
value.
The "Parameters" window opens.
"Parameters" window
▶Click on the value, change the parameter and confirm by
pressing OK.
Always use a decimal point as a separator.
The new value is applied to the parameter (here, the value
has been changed from 0.5 to 1).
Changed parameter

Configuration
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▶Click on the "Simulation" icon to exit simulation.
Exit simulation
▶Then close the window.
This takes you back to the programming interface.
Programming interface after simulation
▶If you wish to continue editing your program, click on
"PROGRAM" in the program tree.
6.5 Loading program to the logic unit
To load a new or changed program to the logic unit, proceed
as follows.
▶Connect the logic unit to the power supply.
▶Connect the logic unit to the PC using the USB cable.
▶Click on the "Download" icon.
Start download
The "Register target system" opens if the program is not yet
on the logic unit, e.g. because you have made a change or
created it from scratch.
"Register target system" window.
▶Confirm by pressing OK.
The "miCon-L" window opens if you did not save your pro-
gram before loading.
Save project
▶Confirm by pressing "Yes" to save your project.
Online observation starts automatically.

Conguration
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Online observation
To end online observation, see Chapter 6.6.
6.6 Online observation
▶Connect the logic unit to the power supply.
▶Connect the logic unit to the PC using the USB cable.
Start online observation
▶To start online observation, click on the "Online/Offline"
icon.
▶If you have not yet done so, open up the "&MAIN" tree.
▶If you have not yet done so, double-click on "$PROGRAM"
to open it.
The "miCon-L" window opens if there is no program on the
logic unit yet or the program is not the same as yours.
"miCon-L" window
▶To load your program onto the logic unit, click on the
"Download project" button.
The program is loaded onto the logic unit.
This program is still on the control after a voltage
drop.
The "miCon-L" window opens if you did not save your pro-
gram before loading.
Save project
▶Confirm by pressing "Yes" to save your project.
Online observation starts automatically.
Online observation

Configuration
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▶To end online observation, click on the "Online/Offline"
icon and then close the window.
Ending online observation
This takes you back to the programming interface.
Programming interface after online observation
▶If you wish to continue editing your program, click on
"PROGRAM" in the program tree.
6.7 Example project
The basics of creating and simulating projects have been
explained in the previous chapter. In the example "Building
automation" project, the logic unit is to be used to control a
water tank and a ventilation unit within a building.
The following functions are to be implemented:
–When a switch is actuated (Input 1/Switch1/IN 1), the
status LED should light up.
–The ventilation unit (Output 1/OUT 1) is switched on
using another switch (Input 2/Switch 2/IN 2) if the tem-
perature sensor (Input 3/IN 3) generates a signal greater
than 5 V. If the temperature drops or the switch is
switched off again, the ventilation unit stops.
–The water fill level on the tank is passed to the control by
a potentiometer (Input 4/IN 4). Depending on the fill level,
the outputs are switched to display the water level.
–Output2 OUT2 7V
This output switches a lamp which displays when the
tank is 30 % full.
–Output 3 OUT 3 14V
This output switches a signal horn which sounds when
the tank is 30 % full.
–Output 4 OUT 4 21V
This output switches all the water pumps on so that the
water is no longer pumped into the tank and it cannot
overflow.
TIP: The F1 button provides comprehensive help on all top-
ics!
The nished program should look as follows:
Solution for example project

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Technical Data WCU501(Orderno.1517130000) WCU650(Orderno.2010680000)
General data
Type of connection Pluggable spring-type terminals (0.25 – 1.5 mm2)
Operating voltage +VDD: 7 … 32VDC
Input fuse Max. 8 A (external)
Wire connection method PUSH IN
Optical function display LED
Interface Serial RS232 TTL 232
Degree of protection IP20
Safety Watchdog
Brown out detection
Power up timer
Watchdog
Fail-safe oscillator 16 MHz
Brown out detection, Power up timer
Current consumption < 4 mA Nominal 15 mA @ 32 V DC
Encapsulation compound Polyurethane (PU)
Reverse polarity protection – Yes
(combined with external fuse)
Analogue inputs
Number 36
Pin assignment IN 3, IN 4, IN 5 IN 1, IN 2, IN 3, IN 4, IN 5, IN 6
Resolution 10-bit 12-bit
Input voltage 0 … 30 V DC
Input resistance > 11 kΩ
Accuracy ± 3% (0.5 V DC) ± 2% (0.25 V DC)
Digital inputs
Number 24
Pin assignment IN 1, IN 2 IN 7, IN 8, IN 9, IN 10
Input frequency ≤ 1 kHz
Input voltage 0 - 30 V DC
Input resistance > 30 kΩ
Pulse length ≥ 1 ms
Threshold voltage Off ≤ 5 V DC ≤ 2 V DC
Threshold voltage On > 5 V DC ≥ 4 V DC
Digital outputs
Number 4 8
Pin assignment OUT 1, OUT 2, OUT 3, OUT 4 OUT 1, OUT 2, OUT 3, OUT 4, OUT 5, OUT 6, OUT 7,
OUT 8
Output voltage +VDD - 0.45 V
Total output current ≤ 4 A ≤ 6 A
Output current per channel < 1.5 A
Switching frequency 0 … 100 Hz
PWM output
Number 1, can also be used as digital output
Type Ground-switching
7 Technical Data

Technical Data
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Technical Data WCU501(Orderno.1517130000) WCU650(Orderno.2010680000)
Pin assignment OUT 5 OUT 9
Output voltage ≤ GND + 0.25 V
Output current per channel ≤ 1 A
Switching frequency 1…5 kHz 1…10 kHz
CAN interface
Baud rate – 100, 125, 250, 500 kbit
Bus system – ISO 11898-2, CAN 2.0B, CAN 2.0A
Identifier – 11 bit / 29 bit
Dimensions and weight
Weight(withoutcablesandadapters) 50 g 102 g
Height 40mm 93mm
Width 44mm 45mm
Depth 31 mm 30 mm

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8 Ordering data
Order no. Part designation Description
1517130000 LOGIC UNIT WCU 501 Graphically programmable logic unit WCU 501 with two pluggable spring-
type screw terminals
1548720000 WCU 501 STARTER KIT WCU 501 logic unit with RS232 cable and RS232 USB converter
2515030000 WCU 501 RS232 CABLE RS232 cable for WCU 501 (without RS232 USB converter)
2010680000 LOGIC UNIT WCU 650 Graphically programmable logic unit WCU 650 with CAN interface and
three pluggable spring-type terminals
2007290000 WCU 650 STARTER KIT WCU 650 logic unit with USB programing adapter
2515020000 WCU 650 PC CABLE USB programming adapter for WCU 650

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Klingenbergstraße 16
D-32758 Detmold, Germany
T [phone]
F [phone]
www.weidmueller.com
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on the Internet at www.weidmueller.com/
corporate/locations worldwide
Order number: 2530270000/01/12.2017