The Yokogawa ADV161-P50, also cataloged as the ADV161 Digital Input Module, operates as a dedicated hardware component for discrete signal acquisition within CENTUM VP/CS network platforms. The module executes direct voltage and state monitoring of field contact switches, relays, and pushbutton inputs, transferring the synchronized binary status data to the central process control stations via the internal FIO backplane interface.
| Code | Type | Selection Detail |
|---|---|---|
| ADV161 | Base Model | Digital Input Module (64-Channel, Isolated) |
| -P | Input Type | Configured with pushbutton input functional parameters |
| 5 | Display & Ex Option | Without status display; with no explosion protection |
| 0 | Feature Set | Basic hardware type |
| Parameter | Specification |
|---|---|
| Model | ADV161-P50 |
| Brand | Yokogawa |
| Origin | Japan |
| Weight | 0.30 kg (Net module weight), 2 kg (Shipping weight) |
| Dimensions | 107.5 x 130 x 32.8 mm |
| Operating Temp | 0 to +60 deg C |
| Power Consumption | 550 mA at 5 VDC (Backplane supplied) |
| Rated Input Voltage | 24 VDC (Sink/source) |
| ON Voltage Range | 20 to 26.4 VDC |
| OFF Voltage | 5 VDC or lower |
| Input Current | 2.5 mA per channel (plus/minus 20 percent) |
| Isolation | 2 kV AC (Input to system) |
The Yokogawa ADV161-P50 implements optical isolation rated at 2 kV AC between the high-density external field wiring terminals and the internal system logic circuitry. This multi-level signal isolation blocks common-mode voltage transients and industrial electromagnetic noise from penetrating the central processing unit backplane. Built-in digital filters eliminate contact bounce and false signaling variables, while the module diagnostics monitor internal circuitry health to flag maintenance warnings directly in the CENTUM VP environment.
Q: What physical differences exist on the module faceplate due to the "5" option code?
A: The "5" digit indicates that this specific configuration lacks the individual channel LED status display matrix on the front panel. Loop verification must be executed via the system engineering workstation diagnostics rather than visual inspection of the hardware faceplate.
Q: How do the time constraints differ between standard status inputs and pushbutton inputs on this module?
A: Standard discrete inputs execute with an 8 ms response time. When handling momentary manual switch actions, the module requires a pushbutton signal duration of 20 ms or greater for accurate detection, operating up to a maximum cycle rate of 25 Hz.
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