Overview
Configured for 24 VDC status signal acquisition in the CENTUM VP FIO system, the Yokogawa ADV161-P50 (ADV161 Digital Input Module) provides direct electrical input processing for isolated field digital signals. This module handles 64 input channels with defined voltage thresholds and response characteristics for FIO-based digital I/O applications.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | ADV161-P50 |
| Brand | Yokogawa |
| Product Type | Digital Input Module |
| System Platform | CENTUM VP FIO |
| Origin | Japan |
| Input Channels | 64 channels |
| Rated Input Voltage | 24 VDC |
| Input ON Voltage | 20 to 26.4 VDC |
| Input OFF Voltage | 5.0 VDC or less |
| Input Current | 2.5 mA +/- 20 % per channel |
| Input Signal Isolation | Input signal to system: 2 kVAC for 1 minute |
| Common Isolation | 500 VAC for 1 minute, common every 16 channels |
| Input Response Time | 8 ms or less for status input |
| Minimum ON Detection Time | 20 ms for pushbutton input |
| Maximum ON/OFF Cycle | 25 Hz for pushbutton input |
| Module Function Modes | SI, PB, SO, PW, TP |
24 VDC Digital Signal Processing and Channel Isolation
The ADV161-P50 processes discrete field signals through isolated input channels within the Yokogawa FIO architecture. The module accepts 24 VDC digital signals and evaluates ON/OFF states according to configured voltage levels.
Furthermore, the input circuit provides electrical isolation between field input signals and the system side. The module supports common isolation grouping for every 16 channels, which limits signal interference between independent field circuits.
The supported point modes include status input (SI), pushbutton input (PB), status output (SO), pulse width output (PW), and time-proportioning ON/OFF output (TP). Therefore, the module can support multiple digital signal handling configurations inside CENTUM VP control environments.
Frequently Asked Questions
Q: How many digital input channels does the ADV161-P50 provide?
A: The ADV161-P50 provides 64 isolated digital input channels for 24 VDC field signal acquisition.
Q: What input voltage range defines the ON state of this module?
A: The module recognizes an ON state when the input voltage is within 20 to 26.4 VDC.
Q: Does the ADV161-P50 support pushbutton input applications?
A: Yes. The module supports pushbutton input mode with a minimum ON detection time of 20 ms and a maximum ON/OFF cycle of 25 Hz.
Field Installation Guidelines
- Install the ADV161-P50 only within compatible Yokogawa FIO node hardware according to the CENTUM VP system configuration.
- Verify field wiring polarity before connecting 24 VDC digital signals to the input terminals.
- Separate digital signal cables from high-voltage power wiring to reduce electrical noise coupling.
- Connect shielded cables according to the site grounding standard when shielded field wiring is applied.
- Confirm the input voltage remains within the specified ON and OFF threshold ranges before system commissioning.
- Check terminal connections and isolation requirements when multiple common groups are used.
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