This programmable indicating controller delivers precise PID loop control with an integrated operator interface. It combines analog and digital I/O capabilities within a single compact unit. We designed the Yokogawa YS170-012 S4 for demanding process control applications in various industries. This controller offers powerful user-configurable programming for complex control strategies. It provides clear process visualization through its built-in display panel. Therefore, your operations gain both control capability and local monitoring in one device.
Physical Configuration and Mounting Options
The Yokogawa YS170-012 S4 features a standard 1/4 DIN panel-mount form factor. Its dimensions measure 96.0 mm in width, 96.0 mm in height, and 140.0 mm in depth. The controller weighs approximately 1.2 kilograms for secure panel installation. This unit installs easily into standard panel cutouts with the included mounting hardware. It connects to field instruments via the rear-panel screw terminal connectors. The device offers a bright, backlit LCD display for clear operator viewing.
Input and Output Specifications
This indicating controller provides flexible analog input and output configuration options. It accepts universal inputs including thermocouples, RTDs, and standard analog signals. The Yokogawa YS170-012 S4 also supports pulse and digital input signals for versatility. It delivers analog output signals for driving final control elements directly. The controller includes digital input points for mode selection and remote setpoint changes. It provides relay outputs for discrete alarm and trip functions as well. Consequently, this simplifies integration with your existing field instrumentation.
Functional Features and Technical Parameters
We present the controller’s comprehensive technical attributes and operational specifications below.
| Specification | Detail |
|---|---|
| Part Number | Yokogawa YS170-012 S4 |
| Product Category | Programmable Indicating Controller |
| Dimensions (W x H x D) | 96.0 mm x 96.0 mm x 140.0 mm |
| Controller Weight | Approximately 1.2 kg (2.65 lbs) |
| Mounting Style | 1/4 DIN panel-mount (92.0 mm x 92.0 mm cutout) |
| Display Type | Backlit LCD, 4-line x 20-character |
| Display Resolution | 128 x 64 pixels with bargraph indicators |
| Analog Inputs | 2 universal inputs (TC, RTD, 4-20 mA, 0-10 V) |
| Analog Outputs | 2 configurable outputs (4-20 mA, 0-10 V) |
| Digital Inputs | 3 configurable digital input points |
| Relay Outputs | 2 form C relay outputs (5 A at 250 VAC) |
| Control Algorithm | PID with auto-tuning, cascade, and ratio control |
| Programming Language | User-friendly function block configuration |
| Program Storage | 4 user programs, up to 500 steps total |
| Communication Interface | RS-485 with Modbus RTU protocol |
| Setpoint Ramping | Programmable ramp rates for smooth process transitions |
| Power Supply | 100-240 VAC, 50/60 Hz (universal input) |
| Power Consumption | 15 VA maximum |
| Memory Backup | Non-volatile EEPROM (no battery required) |
| Operating Temperature | 0°C to 50°C (32°F to 122°F) |
| Ingress Protection | IP66 (front panel) |
| Compliance | CE, UL, RoHS |
Details
| Weight | 1.2 kg |
|---|---|
| Dimensions | 96 × 96 × 140 mm |
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