ATTO Control SYS PLC with Display DU-01: Integrated Programmable Logic Controller for Industrial Automation

Product Overview

The ATTO Control SYS PLC with Display DU-01 is a compact programmable logic controller system designed for industrial automation applications requiring integrated operator interface capabilities. This complete control solution includes the ATT0-CPU44 central processing unit and the Samsung PVU-2424 power supply unit, forming a reliable platform for machine control, process monitoring, and data acquisition. The DU-01 display provides real-time visualization of system status, process variables, and alarm conditions, enabling operators to interact with the control system directly without additional HMI hardware. The system is engineered for use in manufacturing environments, packaging machinery, and material handling systems where space is limited but control capability cannot be compromised.

Key Features of ATTO Control DU-01 System

The ATT0-CPU44 processor module serves as the intelligence of the system, executing the user program with deterministic scan cycle times suitable for real-time control tasks. The CPU supports multiple programming languages including ladder logic, function block diagrams, and structured text, providing flexibility for engineers with different programming backgrounds. The DU-01 display features a high-visibility LCD screen capable of showing custom graphics, text messages, and numerical values, with membrane keypad input for operator commands. The Samsung PVU-2424 power unit provides regulated 24 V DC output to the CPU, I/O modules, and the display, with built-in overcurrent and overvoltage protection to safeguard connected components.

The system supports a range of digital and analog I/O modules that can be attached to the CPU via the backplane bus, allowing system expansion to meet specific application requirements. Communication ports on the CPU include RS-232 and RS-485 interfaces, enabling connection to host computers, operator terminals, and field devices using Modbus RTU protocol. The DU-01 display can be programmed to show real-time data from the PLC registers, display alarm messages based on bit conditions, and accept numeric input from operators for setpoint adjustment. The entire system is designed for DIN rail mounting within a control enclosure, with a compact footprint that minimizes panel space consumption.

Technical Specifications

• Manufacturer: ATTO Control

• System Model: SYS PLC with Display DU-01

• CPU Module: ATT0-CPU44

• Power Supply: Samsung PVU-2424, 24 V DC output

• Display Type: LCD with backlight, alphanumeric and graphic capable

• User Input: Membrane keypad

• Programming Languages: Ladder logic, function block, structured text

• Communication Ports: RS-232, RS-485 (Modbus RTU)

• I/O Expansion: Backplane bus for additional modules

• Mounting: DIN rail

• Operating Temperature: 0 to +55 °C

• Degree of Protection: IP20 (controller), IP65 (display front panel)

Functional Description

The ATTO Control system operates by executing the user program stored in the CPU's non-volatile memory. During each scan cycle, the CPU reads the status of input modules, executes the control logic, updates outputs, and refreshes the display data. The DU-01 display communicates with the CPU via an internal bus, receiving data from specific memory addresses and displaying it according to the configured screen layouts. Operators can use the keypad to navigate between screens, acknowledge alarms, or enter setpoint values, which are then written to the CPU's data registers for use by the control program. The Samsung PVU-2424 power supply converts incoming AC power to stable DC voltage, filtering electrical noise to ensure reliable operation of the sensitive control electronics. In the event of a power interruption, the system retains the user program and configuration data in flash memory, automatically resuming operation when power is restored.

Applications

The ATTO Control SYS PLC with Display DU-01 is deployed in small to medium scale industrial automation applications where an integrated display reduces component count and simplifies panel design. Typical uses include packaging machines requiring operator selection of product sizes, conveyor systems with speed setpoint adjustment, small batch processing equipment, and test stands displaying measured values. The system is also suitable for retrofitting older machines where a modern control and display interface is needed without extensive rewiring.