Overview
The Yokogawa AMN31 S1 Input Module is a high-performance analog input interface designed for use within Yokogawa’s control and safety systems, including the CENTUM VP and ProSafe-RS platforms. It provides precise and reliable data acquisition from field instruments such as transmitters, sensors, and transducers. The AMN31 S1 ensures accurate signal conversion, enabling stable process control and system integrity across complex industrial applications.
Moreover, its modular design allows easy installation and flexible system expansion without disrupting existing configurations. Yokogawa’s proven reliability and diagnostic capabilities make this module a trusted choice for engineers managing mission-critical automation environments.
Technical Specifications
| Parameter |
Description |
| Model |
AMN31 S1 |
| Product Type |
Analog Input Module |
| Input Type |
Voltage / Current |
| Number of Channels |
16 analog input channels |
| Input Signal Range |
1–5 V DC, 4–20 mA DC |
| Input Accuracy |
±0.1% of full scale |
| Conversion Type |
16-bit A/D conversion |
| Isolation |
Channel-to-channel and channel-to-system isolated |
| Power Supply |
From backplane bus |
| Power Consumption |
Approx. 6 W |
| Response Time |
≤ 100 ms |
| Operating Temperature |
0°C to 55°C |
| Storage Temperature |
–25°C to 70°C |
| Dimensions |
130 mm × 30 mm × 110 mm |
| Weight |
Approx. 0.25 kg |
| Mounting Method |
Plug-in on I/O base unit |
| Status Indicators |
Power, error, and communication LEDs |
FAQ
Q1: What types of signals does the AMN31 S1 support?
A1: It supports both voltage (1–5 V DC) and current (4–20 mA DC) input signals.
Q2: Can this module be used with Yokogawa’s CENTUM VP system?
A2: Yes, it is fully compatible with Yokogawa’s CENTUM VP and ProSafe-RS control systems.
Q3: Is the AMN31 S1 hot-swappable?
A3: Yes, it can be replaced while the system remains operational, reducing downtime.
Q4: How many channels are available in one module?
A4: The module includes 16 isolated analog input channels.
Q5: Does it include any diagnostic capabilities?
A5: Yes, it offers built-in diagnostics for open-circuit detection, signal overrange, and hardware faults.
