Installation Guide
Vision™ OPLC™
This guide provides basic information for Unitronics’ controllers V570-57-T20B and V570-57-T40B.
V570-57-T20B and V570-57-T40B
General Description
Vision OPLCs are programmable logic controllers that comprise an integral operating panel.
V570-57-T20B and V570-57-T40B comprise a color touchscreen, which displays a virtual keyboard
when the application requires the operator to enter data.
Communications 2 isolated RS232/RS485 ports
Isolated CANbus port, CANopen & UniCAN
The user can order and install an Ethernet port
Communication Function Blocks include: SMS, GPRS, MODBUS
serial/IP Protocol FB enables PLC to communicate with almost any
external device, via serial or Ethernet communications
I/O Options Vision supports up to 512
high-speed, and analog I/Os via:
Snap-in I/O Modules
Plug into the back of the
controller to provide an onboard I/O configuration
I/O Expansion Modules
Via adaptor, local or remote
I/Os may be added via
expansion port or CANbus
Information Mode This mode enables you to:
Installation instructions and other data may be found in the module’s technical
specification sheet.
Calibrate the touchscreen
View & Edit operand values, COM port settings, RTC and screen
contrast/brightness settings
Stop, initialize, and reset the PLC
To enter Information Mode, press the touchscreen and maintain contact for
several seconds.
1
digital,
Programming
Software,
& Utilities
The Unitronics Setup CD contains VisiLogic software and other utilities
VisiLogic
Easily configure hardware and write both HMI and Ladder control
applications; the Function Block library simplifies complex tasks
such as PID. Write your application, and then download it to the
controller via the programming cable included in the kit.
Utilities
These include UniOPC server, Remote Access for remote
programming and diagnostics, and DataXport for run-time data
logging.
To learn how to use and program the controller, as well as use utilities such as
Remote Access, refer to the VisiLogic Help system.
1
Number of I/Os may vary according to I/O module selection.
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Vision™ OPLC™ V570-57-T20B, V570-57-T40B Installation Guide
Removable
Memory
Storage
An SD card enables you to store up to 2GB of datalogs, Alarm history, Data
Tables; export to Excel/.csv, backup Ladder, HMI & OS, and use this data to
‘clone’ PLCs.
For more data, refer to the SD topics in the VisiLogic Help system.
Operand Types
Memory Bits 8192
32-bit
│ 256 Double Word, 32-bit unsigned │64 Memory Floats, 32-bit │
│ Memory Integers 4096 registers 16-bit │512 Long Integers,
384 Timers, 32-bit │32 Counters, 16-bit
Data Tables 120K dynamic data (recipe parameters, datalogs, etc.)
192K fixed data (read-only data, ingredient names, etc)
Additional product documentation is in the Technical Library, located at www.unitronics.com
the Unitronics’ Setup CD.
Technical support is available at the site, and from support@unitronics.com.
Standard Kit Contents
Vision controller Programming cable + RS232 adapter
3 pin power supply connector Mounting brackets (x4)
5 pin CANbus connector Rubber seal
CANbus network termination resistor Unitronics’ Setup CD
Battery (not installed)
Danger Symbols
When any of the following symbols appear, read the associated information carefully.
Symbol Meaning Description
Caution
Danger The identified danger causes physical and property damage.
Warning The identified danger could cause physical and property damage.
Caution Use caution.
, and on
Before using this product, the user must read and understand this document.
All examples and diagrams are intended to aid understanding, and do not guarantee operation.
Unitronics accepts no responsibility for actual use of this product based on these examples.
Please dispose of this product according to local and national standards and regulations.
Only qualified service personnel should open this device or carry out repairs.
Failure to comply with appropriate safety guidelines can cause severe injury or property damage.
Do not attempt to use this device with parameters that exceed permissible levels.
To avoid damaging the system, do not connect/disconnect the device when power is on.
Environmental Considerations
Do not install in areas with: excessive or conductive dust, corrosive or flammable gas,
moisture or rain, excessive heat, regular impact shocks or excessive vibration, in accordance
with the standards given in the product’s technical specification sheet.
Ventilation: 10mm space required between controller’s top/bottom edges & enclosure walls.
Do not place in water or let water leak onto the unit.
Do not allow debris to fall inside the unit during installation.
Install at maximum distance from high-voltage cables and power equipment.
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Installation Guide Vision™ OPLC™ V570-57-T20B, V570-57-T40B
Inserting the Battery
In order to preserve data in case of power-off, you must insert the battery.
The battery is supplied taped to the battery cover on the rear of the controller.
1. Remove the battery cover shown on page 4. The polarity (+) is marked on the battery holder and
on the battery.
2. Insert the battery, ensuring that the polarity symbol on the battery is:
- facing up
- aligned with the symbol on the holder
3. Replace the battery cover.
Mounting
Dimensions
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Vision™ OPLC™ V570-57-T20B, V570-57-T40B Installation Guide
Panel Mounting
Before you begin, note that the mounting panel cannot be more than 5 mm thick.
1. Make a panel cut-out according to
the dimensions in the figure to the
right.
2. Slide the controller into the cutout, ensuring that the rubber seal
is in place.
3. Push the 4 mounting brackets into
their slots on the sides of the
controller as shown in the figure to
the right.
4. Tighten the bracket screws
against the panel. Hold the
bracket securely against the unit
while tightening the screw.
5. When properly mounted, the
controller is squarely situated in
the panel cut-out as shown below.
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Installation Guide Vision™ OPLC™ V570-57-T20B, V570-57-T40B
Wiring
Do not touch live wires.
Unused pins should not be connected. Ignoring this directive may damage the device.
To avoid damaging the wire, do not exceed a maximum torque of 0.5 N·m (5 kgf·cm).
Caution
Do not use tin, solder, or any substance on stripped wire that might cause the wire
strand to break.
Use crimp terminals for wiring; use 26-14 AWG wire (0.13 mm 2–3.31 mm2).
1. Strip the wire to a length of 7±0.5mm (0.250–0.300”).
2. Unscrew the terminal to its widest position before inserting a wire.
3. Insert the wire completely into the terminal to ensure a proper connection.
4. Tighten enough to keep the wire from pulling free.
Power Supply
The controller requires an external 24VDC power supply. The permissible input voltage range is
20.4-28.8VDC, with less than 10% ripple.
A non-isolated power supply can be used if a 0V signal is connected to the chassis.
Install an external circuit breaker. Guard against short-
circuiting in external wiring.
Double-check all wiring before turning on the power
supply.
Do not connect either the ‘Neutral or ‘Line’ signal of the
110/220VAC to device’s 0V pin.
In the event of voltage fluctuations or non-conformity to
voltage power supply specifications, connect the device
to a regulated power supply.
Earthing the Power Supply
To maximize system performance, avoid electromagnetic interference by:
Mounting the controller on a metal panel.
Earthing the controller’s power supply: connect one end of a 14 AWG wire to the chassis
signal; connect the other end to the panel.
Note: If possible, the wire used to earth the power supply should not exceed 10 cm in length.
However, it is recommended to earth the controller in all cases.
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Vision™ OPLC™ V570-57-T20B, V570-57-T40B Installation Guide
Communication Ports
This series comprises 2 RS232/RS485 serial ports and a CANbus port.
Turn off power before making communications connections.
Caution
Always use the appropriate port adapters.
Serial Communications
The serial ports are type RJ-11 and may be set to either RS232 or RS485 via DIP switches, in
accordance with the table shown below.
Use RS232 to download programs from a PC, and to communicate with serial devices and
applications, such as SCADA.
Use RS485 to create a multi-drop network containing up to 32 devices.
Pinouts
The pinouts below show PLC port signals.
To connect a PC to a port that is set to RS485, remove the RS485 connector, and connect the PC to
the PLC via the programming cable. Note that this is possible only if flow control signals are not used
(which is the standard case).
RS232 RS485** Controller Port
Pin # Description Pin # Description
1* DTR signal
2 0V reference
1 A signal (+)
2 (RS232 signal)
3 TXD signal
4 RXD signal
5 0V reference
6* DSR signal
3 (RS232 signal)
4 (RS232 signal)
Pin #1
5 (RS232 signal)
6 B signal (-)
*Standard programming cables do not provide connection points for pins 1 and 6.
**When a port is adapted to RS485, Pin 1 (DTR) is used for signal A,
and Pin 6 (DSR) signal is used for signal B.
RS232 to RS485: Changing DIP Switch Settings
The ports are set to RS232 by factory default.
To change the settings, first remove the Snap-in I/O Module, if one is installed, and then set the
switches according to the following table.
RS232/RS485: DIP Switch Settings
The settings below are for each COM port.
Switch Settings
1 2 3 4 5 6
RS232* ON ON ON OFF ON OFF
RS485 OFF OFF OFF ON OFF ON
RS485 with
ON ON OFF ON OFF ON
termination**
*Default factory setting
**Causes the unit to function as an end unit in an RS485 network
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Installation Guide Vision™ OPLC™ V570-57-T20B, V570-57-T40B
Removing a Snap-in I/O Module
1. Locate the four buttons on the sides of the controller, two on either side.
2. Press the buttons and hold them down to open the locking mechanism.
3. Gently rock the module from side to side, easing the module from the controller.
Re-installing a Snap-in I/O Module
1. Line the circular guidelines on the controller up with the guidelines on the Snap-in I/O Module as
shown below.
2 Apply even pressure on all 4 corners until you hear a distinct ‘click’. The module is now installed.
Check that all sides and corners are correctly aligned.
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Vision™ OPLC™ V570-57-T20B, V570-57-T40B Installation Guide
CANbus
These controllers comprise a CANbus port. Use
this to create a decentralized control network using
one of the following CAN protocols:
CANopen: 127 controllers or external
devices
Unitronics’ proprietary UniCAN: 60
controllers, (512 data bytes per scan)
The CANbus port is galvanically isolated.
CANbus Wiring
Use twisted-pair cable. DeviceNet® thick shielded
twisted pair cable is recommended.
24V Power Supply
+V
L
PE
H
+V
+
Circuit
protection
device
121
terminating
resistor
Network terminators: These are supplied with the
controller. Place terminators at each end of the
CANbus network.
Resistance must be set to 1%, 121Ω, 1/4W.
+V
L
PE
H
+V
Connect ground signal to the earth at only one
point, near the power supply.
The network power supply need not be at the end
of the network
CANbus Connector
+V
L
PE
H
+V
121
terminating
resistor
The information in this document reflects products at the date of printing. Unitronics reserves the right, subject to all applicable laws, at any time, at its sole
discretion, and without notice, to discontinue or change the features, designs, materials and other specifications of its products, and to eithe r permane ntly or
temporarily withdraw any of the forgoing from the market.
All information in this document is provided "as is" without warranty of any kind, either expressed or implied, including but not limited to any implied warranties of
merchantability, fitness for a particular purpose, or non-infringement. Unitronics assumes no responsibility for errors or omissions in the information presented in
this document. In no event shall Unitronics be liable for any special, incidental, indirect or consequential damages of any kind, or any damages whatsoever arising
out of or in connection with the use or performance of this informat i on.
The tradenames, trademarks, logos and service marks presented in this document, including their design, are the property of Unitronics (1989) (R"G) Ltd. or other
third parties and you are not permitted to use them without the prior written consent of Unitronics or such third party as may own them.
DIG-V570-TX0B 08/08
8 Unitronics
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