Yokogawa YS1700-001/S01 YS1000 Indicating Controller 24VDC
Manufacturer: Yokogawa
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Part Number: YS1700-001/S01
Condition：New with Original Package
Product Type: Indicating Controllers
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Country of Origin: Japan
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Product Overview
The Yokogawa YS1700-001/S01 represents the pinnacle of the YS1000 series, functioning as a high-availability programmable indicating controller for mission-critical process loops. This 100% brand new original unit utilizes a sophisticated dual-CPU design to isolate control logic from display functions, ensuring the process remains stable even if one processor encounters an error. It serves as a drop-in high-performance solution for chemical reactors, power plant boiler controls, and water treatment filtration systems.
Part Number Breakdown: YS1700 Series
| Code | Description |
| YS1700 | Programmable Indicating Controller |
| -0 | Basic Type |
| 0 | Color LCD Display |
| 1 | 100-240V AC or 24V DC / 100-120V DC Operation |
| /S01 | Special Specification (Custom configuration/Standard variation) |
Technical Specifications
The YS1700-001/S01 combines dense I/O capabilities with flexible programming to handle complex multi-variable control strategies.
| Feature | Specification |
| Display | Full dot-matrix color TFT LCD |
| Architecture | Dual-CPU (Control and Display independent) |
| Analog Inputs | 8 channels (1-5V DC, 4-20mA via external resistor) |
| Analog Outputs | 4 channels (4-20mA, 1-5V DC) |
| Digital I/O | 10 DI/DO (Total 14 channels available) |
| Programming | Function Block (400 modules) or Text-based logic |
| Fail-Safe | Manual override circuit with hardwired output |
| Data Retention | Non-volatile memory (Battery-free design) |
| Dimensions | 144 mm (H) x 72 mm (W) x 250 mm (D) |
| Weight | 1.6 kg |
Engineering Advantages
The YS1700-001/S01 addresses the most common industrial pain points through superior hardware engineering:
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Eliminates Single Points of Failure: The Dual-CPU architecture separates the display engine from the control engine. If the display fails, the control CPU maintains the PID loop without interruption. A dedicated manual override circuit allows operators to adjust outputs directly even during a total CPU failure.
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Simplifies Complex Logic Integration: Engineers can choose between Function Block programming (for visual loop design) or Text-based logic (for complex mathematical operations). The system supports up to 400 modules, providing enough power for cascade, selector, and feed-forward control strategies in one unit.
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High-Visibility Process Tracking: The full-dot matrix color LCD replaces traditional monochrome displays. High-contrast trend graphs and bar segments allow operators to identify process deviations from a distance, reducing response times during critical events.
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Maintenance-Free Data Safety: Yokogawa utilizes advanced non-volatile memory that eliminates the need for backup batteries or capacitors. This reduces long-term maintenance costs and prevents logic loss during extended facility shutdowns.
FAQs
Can the YS1700-001/S01 replace older YS170 models?
Yes. The YS1000 series maintains high compatibility with the legacy YS100 series. The YS1700-001/S01 offers a similar panel cutout and terminal arrangement, though you should verify specific signal scaling using the YS1000 configuration software.
What happens if both CPUs encounter a fault?
The unit features a "Hard Manual" circuit. This independent hardware loop allows an operator to manipulate the control signal manually via the front panel keys, completely bypassing the digital processors to ensure safe plant shutdown.
Does this controller require a battery for program backup?
No. The YS1700-001/S01 saves all parameters and user programs to non-volatile memory. This design ensures that your control strategies remain intact indefinitely without the risk of battery leakage or failure.
Is it possible to program the unit without a PC?
While the YSS1000 configuration software offers the best experience, you can perform basic parameter settings and loop adjustments directly through the front-panel color LCD and keypad for rapid onsite commissioning.