Yokogawa YS1700-030 Programmable Indicating Controller

Product Description

The YS1700-030 is a configurable programmable indicating controller from Yokogawa’s YS1000 series, developed for stable and precise control of complex industrial processes. Unlike conventional single-loop controllers, this model combines flexible software-based control logic with robust hardware design, allowing it to operate either as a standalone controller or as part of a larger control architecture.

Designed with a separated control and display processing structure, the controller maintains stable control execution even during display updates or operator interaction. Its high-resolution TFT display provides clear visualization of process values, alarms, and trends, supporting efficient operation and maintenance in control rooms and field panels.

The YS1700-030 supports user-defined control strategies through function block configuration or text-based sequence programming, making it suitable for applications that require customization beyond fixed PID control. Multiple communication interfaces enable seamless data exchange with PLCs, DCS systems, and supervisory networks.

Technical Specifications

• Model: YS1700-030
• Product Family: Yokogawa YS1000 Series
• Control Type: Programmable indicating controller
• Control Loops: Up to 2 independent PID loops (simultaneous operation)
• Program Capacity:
  • Approx. 400 configurable function blocks
  • Up to 1,000 steps in text-based sequence programs
• Display: Full-dot color TFT LCD with high contrast and wide viewing angle
• CPU Structure: Dual-CPU architecture (dedicated control CPU and display CPU)
• Analog Inputs: Up to 8 channels (voltage, current, and temperature inputs depending on configuration)
• Analog Outputs: Up to 4 channels (current or voltage)
• Digital I/O: Up to 14 points via basic and optional expansion modules
• Communication Interfaces:
  • Ethernet (Modbus/TCP)
  • RS-485 (Modbus RTU)
  • Yokogawa DCS / LCS communication
• Power Supply Options:
  • 100–240 V AC (50/60 Hz)
  • 24 V DC
• Front Panel Protection: IP54
• Installation: Panel-mounted

Typical Applications

The YS1700-030 is commonly deployed in:

• Chemical and petrochemical processing units
• Power generation auxiliary systems
• Water and wastewater treatment plants
• Oil and gas balance-of-plant control
• Skid-mounted and packaged equipment requiring local control with network connectivity

FAQ

Can the YS1700-030 replace traditional single-loop PID controllers? Yes. In addition to standard PID control, it supports programmable logic and sequencing, allowing it to consolidate multiple control and monitoring functions into a single device.

Is it suitable for integration with Yokogawa DCS systems? Yes. The controller supports dedicated DCS/LCS communication as well as standard industrial protocols such as Modbus.

Does display operation affect control performance? No. The dual-CPU design isolates control execution from display processing, ensuring stable operation even during screen updates or configuration changes.