Product Description
The ASI133-S00 analog input module from Yokogawa is a 16-channel AIO module engineered for reliable acquisition of standard industrial analog signals in distributed control systems. It is designed for seamless integration with CENTUM VP as well as legacy CENTUM CS and CS 3000 platforms, ensuring long-term compatibility in both modernized and existing installations.
This module supports commonly used current and voltage signals, enabling precise measurement from transmitters, analyzers, and other field instruments. With built-in isolation and robust signal conditioning, the ASI133-S00 delivers stable performance even in electrically noisy plant environments. The standard S00 option represents Yokogawa’s baseline hardware and firmware configuration, widely adopted for general process control applications.
Key Functional Characteristics
The ASI133-S00 provides sixteen independent analog input channels optimized for continuous process monitoring. Each channel performs high-resolution A/D conversion with internal filtering to reduce noise and improve signal integrity. Diagnostic functions monitor module status and input abnormalities, supporting predictive maintenance and system reliability.
Electrical and Signal Specifications
The module is designed to accept industry-standard analog signals without the need for external conversion devices. Typical electrical characteristics include:
-
Supported signal types: 4–20 mA DC and 1–5 V DC
-
Input impedance: approximately 250 Ω for current inputs
-
Conversion resolution: up to 16-bit, depending on hardware revision
-
Isolation: channel-to-system bus isolation to minimize ground loops
-
Power supply: delivered via the I/O baseplate, no external wiring required
System Compatibility and Integration
The ASI133-S00 is part of Yokogawa’s AIO module family and is installed directly onto the corresponding I/O baseplate. It is fully supported by CENTUM engineering tools and diagnostics, allowing configuration, calibration, and monitoring from the control system environment. Hot replacement is supported when used in redundant system architectures, reducing downtime during maintenance.
Environmental and Mechanical Design
Built for continuous operation in harsh industrial conditions, the module features an industrial-grade enclosure and passive cooling design.
-
Operating temperature range: 0 °C to 55 °C
-
Storage temperature range: −40 °C to 70 °C
-
Relative humidity: 5–95%, non-condensing
-
Cooling method: natural convection
-
Mounting: standard I/O baseplate slot
Typical Applications
The ASI133-S00 is commonly deployed in process industries where stable and accurate analog measurement is critical, including oil and gas production, petrochemical processing, chemical plants, power generation facilities, and large-scale manufacturing systems.
FAQ
Q: Can the ASI133-S00 be used in newer CENTUM VP systems?
A: Yes. The ASI133-S00 is supported in CENTUM VP as well as earlier CENTUM CS and CS 3000 systems, making it suitable for both upgrades and legacy maintenance.
Q: Does the module support mixed signal types on different channels?
A: Signal configuration depends on system setup and wiring. In typical installations, channels are configured to match connected field instruments within supported ranges.
Q: Is external isolation required?
A: No. The module includes built-in isolation between channels and the system bus, which helps protect against interference and grounding issues.
