Description
Product Description
The Yokogawa AAT145‑S50 is a precision 16-channel analog output module designed for seamless integration with CENTUM VP and CENTUM CS 3000 distributed control systems. Each output channel provides isolated 4–20 mA DC signals, enabling accurate control of actuators, control valves, and other field devices. Built for industrial reliability, this module combines high-resolution output, robust channel-to-channel isolation, and extensive diagnostic capabilities to ensure uninterrupted process control.
Key Features
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16 isolated analog output channels, 4–20 mA DC
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High accuracy and stable operation under industrial conditions
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Channel-to-channel and channel-to-bus isolation for minimal interference
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Integrated diagnostics: output circuit monitoring, module health verification
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Hot-swap support in redundant system configurations
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Compact, baseplate-mounted design (163 × 38 × 58 mm)
Applications
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Precise control of valve positioners, pneumatic actuators, and other process instruments
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Continuous process automation in chemical, power, oil & gas, and manufacturing industries
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Systems requiring high reliability and real-time analog control
Technical Specifications
Functional Parameters
| Parameter | Specification |
|---|---|
| Model | AAT145‑S50 |
| Module Type | Analog Output |
| Channels | 16 isolated outputs |
| Output Signal | 4–20 mA DC |
| System Compatibility | CENTUM VP, CENTUM CS / CS 3000 |
| Diagnostics | Output circuit monitoring, module health check |
Electrical Parameters
| Parameter | Specification |
|---|---|
| Output Range | 4–20 mA DC |
| Resolution | 12–16 bit (typical) |
| Isolation | Channel-to-bus and channel-to-channel |
| Load Resistance | Up to ~600 Ω (system dependent) |
| Power Supply | Supplied via I/O baseplate |
Environmental Parameters
| Parameter | Specification |
|---|---|
| Operating Temperature | 0 °C to 55 °C |
| Storage Temperature | −40 °C to 70 °C |
| Humidity | 5–95% RH, non-condensing |
| EMC | Industrial noise-resistant design |
Mechanical Parameters
| Parameter | Specification |
|---|---|
| Mounting | I/O baseplate slot |
| Cooling | Natural convection |
| Hot-Swap | Supported in redundant systems |
| Dimensions | 163 × 38 × 58 mm |
| Weight | 0.4 kg |
FAQ / Engineer Notes
Q: Can the module operate in high-humidity environments?
A: Yes, it supports 5–95% RH non-condensing operation.
Q: Are outputs truly isolated?
A: Each channel is isolated from the bus and other channels, minimizing cross-talk and interference.
Q: How does it compare to AAT145-S51?
A: The S50 is the standard 16-channel analog output module; S51 adds enhanced diagnostic and fieldbus support.
Features
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