Unitronics V1040-T20B OPLC: User and Installation Guide

General Description

The V1040 OPLCs (Programmable Logic Controllers) are advanced industrial controllers featuring a built-in 10.4" Color Touchscreen. They offer function keys and a virtual alpha-numeric keyboard for data entry.

Image Description: A front view of the Unitronics V1040 controller shows a 10.4-inch color touchscreen display with function keys below it.

Communications

• 2 isolated RS232/RS485 ports
• USB programming port (Mini-B)
• Isolated CANbus port
• An optional port can be added, supporting either Ethernet or serial communication.
• Communication Function Blocks support SMS, GPRS, MODBUS serial/IP, enabling communication with various external devices via serial or Ethernet.

I/O Options

The V1040 supports digital, high-speed, analog, weight, and temperature measurement I/Os through:

• Snap-in I/O Modules: These plug into the rear of the controller for an integrated I/O configuration, supporting up to 62 I/Os.
• I/O Expansion Modules: Local or remote I/Os can be added via an expansion port or CANbus. The local adapter (P.N. EX-A1) via the I/O Expansion Port allows integration of up to 8 modules (128 additional I/Os). The remote adapter (P.N. EX-RC1) via CANbus port supports up to 60 adapters, each connecting up to 8 I/O expansion modules.

Installation instructions for modules are found in their respective technical specification sheets.

Information Mode

This mode allows users to:

• Calibrate the touchscreen.
• View and edit operand values, COM port settings, RTC, and screen contrast/brightness settings.
• Stop, initialize, and reset the PLC.

To enter Information Mode, press and hold the touchscreen for several seconds.

Programming Software & Utilities

The Unitronics Setup CD includes VisiLogic software and other utilities:

• VisiLogic: For configuring hardware and writing HMI and Ladder control applications. Its Function Block library simplifies complex tasks like PID control. Applications are downloaded via the included programming cable.
• Utilities: Include UniOPC server, Remote Access for remote programming/diagnostics, and DataXport for run-time data logging.

Refer to the VisiLogic Help system for detailed programming and utility usage instructions.

Removable Memory Storage

A Micro-SD card slot is available for storing datalogs, Alarms, Trends, Data Tables, and for backing up Ladder, HMI, and OS. Data can be exported to Excel, and the card can be used to 'clone' PLCs.

Data tables enable recipe parameter setting and datalog creation.

For more information, refer to the SD topics in the VisiLogic Help system.

Note: Users must format the Micro-SD card using the Unitronics SD tools utility.

Standard Kit Contents

Danger Symbols and Safety Information

When the following symbols appear, read the associated information carefully:

ⓘ Before using this product, the user must read and understand this document.

All examples and diagrams are intended for understanding and do not guarantee operation. Unitronics is not responsible for product use based on these examples.

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 (refer to product's technical specification sheet for standards).

Ensure 10mm ventilation space between the controller's top/bottom edges and 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.

UL Compliance

This section is relevant for Unitronics products listed with UL. The V1040-T20B is UL listed for both Hazardous Locations and Ordinary Locations.

UL Ordinary Location

To meet the UL ordinary location standard, panel-mount this device on the flat surface of Type 1 or 4X enclosures.

UL Ratings: Programmable Controllers for Use in Hazardous Locations (Class I, Division 2, Groups A, B, C, and D)

This applies to Unitronics products bearing UL symbols for hazardous locations.

ⓘ This equipment is suitable for use in Class I, Division 2, Groups A, B, C, and D, or Non-hazardous locations only.

• Input and output wiring must comply with Class I, Division 2 wiring methods and the authority having jurisdiction.
• ❗ WARNING—Explosion Hazard: Substitution of components may impair suitability for Class I, Division 2.
• ❗ WARNING – EXPLOSION HAZARD: Do not connect or disconnect equipment unless power is switched off or the area is known to be non-hazardous.
• ❗ WARNING: Exposure to certain chemicals may degrade the sealing properties of materials used in relays.
• This equipment must be installed using wiring methods required for Class I, Division 2 as per the NEC and/or CEC.

Panel-Mounting for Hazardous Locations

To meet the UL Hazardous Location standard, panel-mount the device on a flat surface of Type 1 or Type 4X enclosures.

Communication and Removable Memory Storage

When equipped with USB or SD card slots, neither are intended for permanent connection. The USB port is for programming only.

Removing / Replacing the Battery

Replace the battery only when the power is switched off or the area is non-hazardous. It is recommended to back up RAM data before changing the battery to avoid data loss. Date and time information will also need to be reset.

UL des zones ordinaires (French Section Summary):

To comply with the UL ordinary location standard, mount the device on a flat surface of Type 1 or 4X protection type enclosures.

Certification UL des automates programmables (French Section Summary):

This refers to Unitronics products with the UL symbol, certified for hazardous locations (Class I, Division 2, Groups A, B, C, and D).

ⓘ This equipment is suitable for Class I, Division 2, Groups A, B, C, and D, or Non-hazardous locations only.

• Input/output wiring must comply with Class I, Division 2 wiring methods and competent authority.
• ❗ WARNING: Explosion Risk: Component substitution can invalidate Class I, Division 2 certification.
• ❗ WARNING - EXPLOSION DANGER: Do not connect or disconnect equipment without first cutting power or ensuring the area is non-hazardous.
• ❗ WARNING: Exposure to certain chemicals can degrade sealing properties of relay materials.
• Equipment must be installed using Class I, Division 2 wiring methods per NEC and/or CEC.

Montage de l'écran (French Section Summary):

For programmable controllers that can be screen-mounted, to meet UL standards, the screen must be mounted in an enclosure with a flat surface of Type 1 or Type 4X.

Communication et de stockage amovible de mémoire (French Section Summary):

Products with USB or SD card ports are not intended for permanent connection; USB is for programming only.

Retrait / Remplacement de la batterie (French Section Summary):

When a product has a battery installed, remove and replace it only if power is off or the environment is non-hazardous. It is recommended to back up RAM data to prevent loss during battery replacement when power is off. Date and time information will also need to be reset.

Inserting the Battery

To preserve data during power outages, insert the battery. The battery is taped to the controller's rear battery cover.

1. Remove the battery cover. The polarity (+) is marked on the holder and battery.
2. Insert the battery, ensuring the polarity symbol faces up and aligns with the symbol on the holder.
3. Replace the battery cover.

Note: The LCD screen may have a single pixel that is permanently black or white.

Mounting Dimensions

The controller dimensions are 289mm (11.37") wide, 244.5mm (9.62") high, and 59.1mm (2.32") deep. The panel cutout required is 274mm (10.78") wide by 230mm (9.05") high.

Image Description: Diagrams show the controller's overall dimensions and the required panel cutout dimensions.

Panel Mounting

Ensure the mounting panel thickness does not exceed 5mm.

1. Create a panel cut-out according to the specified dimensions.
2. Slide the controller into the cut-out, ensuring the rubber seal is correctly positioned.
3. Insert the 8 mounting brackets into their slots on the controller's sides.
4. Tighten the bracket screws against the panel, holding the bracket securely.
5. Confirm the controller is squarely situated in the panel cut-out.

ⓘ The necessary torque for bracket screws is 0.45 N·m (4.5 kgf·cm).

Image Description: Diagrams illustrate the panel mounting process: making a panel cut-out, sliding the controller into place with the rubber seal, attaching mounting brackets, and tightening screws.

Wiring

ⓘ Caution:

• Do not touch live wires.
• Install an external circuit breaker to guard against short-circuiting.
• Use appropriate circuit protection devices.
• Unused pins should not be connected, as this may damage the device.
• Double-check all wiring before turning on the power supply.
• To avoid damaging the wire, do not exceed a maximum torque of 0.5 N·m (5 kgf·cm).
• Do not use tin, solder, or any substance on stripped wire that might cause the wire strand to break.
• Install at maximum distance from high-voltage cables and power equipment.

Wiring Procedure

Use crimp terminals for wiring with 26-12 AWG wire (0.13 mm²–3.31 mm²).

1. Strip the wire to a length of 7±0.5mm (0.250–0.300 inches).
2. Unscrew the terminal to its widest position before inserting the wire.
3. Insert the wire completely into the terminal for a proper connection.
4. Tighten the terminal securely to prevent the wire from pulling free.

Power Supply

The V1040-T20B requires an external 12 or 24VDC power supply. The permissible input voltage range is 10.2-28.8VDC with less than 10% ripple.

❗ The power supply must include double insulation. Outputs must be rated as SELV/PELV/Class 2/Limited Power.

ⓘ Do not connect the 'Neutral' or 'Line' signal of 110/220VAC to the device's 0V pin.

• Install an external circuit breaker to guard against short-circuiting.
• Double-check all wiring before turning on the power supply.
• In case of voltage fluctuations or non-conformity to power supply specifications, connect the device to a regulated power supply.

Image Description: A wiring diagram shows the connection of the power supply to the controller, including a circuit protection device and earthing connections.

Earthing the OPLC

To maximize system performance and avoid electromagnetic interference:

• Mount the controller on a metal panel.
• Connect the functional earth terminal of the OPLC, and the common and ground lines of I/Os, directly to the system's earth ground.
• Use the shortest and thickest possible wire for ground wiring.

Communication Ports

The series includes a USB port, 2 RS232/RS485 serial ports, and a CANbus port. An optional Ethernet or serial (COM 3) port can be added.

Refer to the Technical Library at www.unitronics.com for the most updated port information.

ⓘ Caution: Turn off power before making communication connections. Always use appropriate port adapters.

The USB port is used for programming, OS download, and PC access. COM port 1 function is suspended when the USB port is physically connected to a PC.

Serial ports are RJ-11 type and can be set to RS232 or RS485 via DIP switches.

• RS232 is used for downloading programs from a PC and communicating with serial devices/applications (e.g., SCADA).
• RS485 is used for multi-drop networks supporting up to 32 devices.

Pinouts

Pinout tables detail the signals for PLC ports.

Image Description: Pinout tables detail the connections for RS232, RS485, and Controller Port signals. Standard programming cables may not support pins 1 and 6 for RS232. For RS485, pins 1 and 6 are used for signals A and B respectively.

RS232 to RS485: Changing DIP Switch Settings

Ports are factory set to RS232. To change settings, remove the Snap-in I/O Module (if installed) and adjust DIP switches.

*Default factory setting

**Causes the unit to function as an end unit in an RS485 network.

Image Description: Diagrams show DIP switch configurations for setting COM ports to RS232 or RS485.

Installing a Snap-in I/O Module

ⓘ Before installing a Snap-In Module, ensure the Communication Module Cover is closed.

1. Remove the I/O connector cap.
2. Align the circular guidelines on the Snap-in I/O Module with the slots on the controller.
3. Apply even pressure on all 4 corners until a 'click' is heard. Check alignment on all sides and corners. The module is now installed.

Image Description: Illustrations demonstrate how to install a Snap-in I/O Module by aligning guidelines and pressing locking buttons.

Removing a Snap-in I/O Module

1. Locate the four buttons on the controller's sides (two on each side).
2. Press and hold the buttons to open the locking mechanism.
3. Gently rock the module side-to-side to ease it out of the controller.

Image Description: Illustrations demonstrate how to remove a Snap-in I/O Module by pressing locking buttons and gently rocking the module.

CANbus

These controllers feature a CANbus port for creating decentralized control networks using protocols like CANopen (up to 127 controllers/devices), CANlayer 2, J1939, or Unitronics' proprietary UniCAN (up to 60 controllers, 512 data bytes/scan).

The CANbus port is galvanically isolated.

CANbus Wiring

Use twisted-pair cable; DeviceNet® thick shielded twisted pair cable is recommended.

Network terminators, supplied with the controller, must be placed at each end of the CANbus network. Resistance should be set to 1%, 121Ω, 1/4W.

Connect the ground signal to the earth at only one point, near the power supply. The network power supply does not need to be at the end of the network.

Image Description: A schematic shows the CANbus network wiring, including power supply, circuit protection, and terminating resistors.

CANbus Connector

The connector pin assignments are:

• (Blk) +V: Common Supply for CANbus
• (Blu) L: CAN Low
• PE: Protective Earth
• (Wht) H: CAN High
• (Red) +V: Power Supply for CANbus

Image Description: A diagram shows the CANbus connector pin assignments for Common Supply, CAN Low, Protective Earth, CAN High, and Power Supply.

Technical Specifications

Power Supply

• Input voltage: 12 or 24VDC
• Permissible range: 10.2-28.8VDC
• Max. current consumption: 840mA@12V, 420mA@24V

Battery

• Back-up: 7 years typical at 25°C for RTC and system data.
• Replaceable: Yes, without opening the controller.

Graphic Display Screen

• LCD Type: TFT
• Illumination backlight: White LED
• Display resolution: 800x600 (SVGA)
• Viewing area: 10.4"
• Colors: 65,536 (16-bit)
• Touchscreen: Resistive, analog
• 'Touch' indication: Via buzzer
• Screen brightness: Via software (Store value to SI 9).

Note 1: The LCD screen may have a single pixel that is permanently black or white.

Keypad

• Number of keys: 9 programmable function keys
• Key type: Metal dome, sealed membrane switch

Program

• Memory size: Application Logic – 2MB, Images – 80MB, Fonts – 1MB

Operand Type

Data Tables

• 120K dynamic RAM data (recipe parameters, datalogs, etc.)
• Up to 256K Flash data

HMI displays

Up to 1024

Program scan time

9 µsec per 1K of typical application

Communication Specifications

Removable Memory

Micro-SD card: Compatible with fast micro-SD cards for storing datalogs, Alarms, Trends, Data Tables, and for backing up Ladder, HMI, and OS.

Note 2: User must format via Unitronics SD tools utility.

Serial Ports (RS232/RS485)

• Galvanic isolation: Yes
• Voltage limits: RS232: ±20VDC absolute maximum; RS485: -7 to +12VDC differential maximum
• Baud rate range: 300 to 115200 bps
• Nodes: RS485 supports up to 32
• Cable type: Shielded twisted pair, in compliance with EIA RS485
• Cable length: RS232 up to 15m (50'); RS485 up to 1200m (4000')

Note 3: Port settings (RS232/RS485) are determined by DIP switch settings.

USB Port

• Port type: Mini-B
• Galvanic isolation: No
• Specification: USB 2.0 compliant; full speed
• Baud rate range: 300 to 115200 bps
• Cable: USB 2.0 compliant; up to 3m

Note 4: USB port is for programming, OS download, and PC access. COM port 1 function is suspended when connected to a PC.

CANbus Port

• Nodes: 1 (CANopen: 127, Unitronics' CANbus protocols: 60)
• Power requirements: 24VDC (±4%), 40mA max. per unit. (Supports 12VDC as well, with max cable length of 150m).
• Galvanic isolation: Yes, between CANbus and controller.
• Cable length/baud rate: Various combinations are supported, e.g., 25m at 1 Mbit/s, 1000m at 50 Kbit/s.

Note 5: Supports 12VDC and 24VDC CANbus power supply.

Optional Port

A single Ethernet port or an RS232/RS485 port can be installed as an optional addition, available by separate order.

I/Os

• Snap-in I/O modules: Support up to 1024 digital, high-speed, and analog I/Os. They plug into the rear port to create a self-contained PLC with up to 62 I/Os.
• Expansion modules: Local adapter (P.N. EX-A1) via I/O Expansion Port integrates up to 8 modules (128 additional I/Os). Remote adapter (P.N. EX-RC1) via CANbus port connects up to 60 adapters, each linking up to 8 I/O expansion modules.
• Exp. port isolation: Galvanic isolation is provided.

Dimensions

Size: 289x244.5x59.1mm (11.37"x9.62"x2.32").

Weight: 1.5kg (52.9 oz).

Note 6: For exact dimensions, refer to the product's Installation Guide.

Mounting

Panel-mounting is done via brackets.

Environment

• Inside cabinet: IP20 / NEMA1 (case)
• Panel mounted: IP65 / NEMA4X (front panel)
• Operational temperature: 0 to 50°C (32 to 122°F)
• Storage temperature: -20 to 60°C (-4 to 140°F)
• Relative Humidity (RH): 5% to 95% (non-condensing)

Additional Product Documentation

Additional product documentation is available in the Technical Library, located at www.unitronics.com.

Technical support is available via the website and from support@unitronics.com.

Disclaimer

The information in this document reflects products at the date of printing. Unitronics reserves the right to change features, designs, materials, and specifications without notice. Unitronics assumes no responsibility for errors or omissions and is not liable for any damages arising from the use or performance of this information.

Trademarks, logos, and service marks are the property of Unitronics (1989) (R"G) Ltd. or other third parties and require written consent for use.