Configured for high-precision signal acquisition in FA-M3 PLC platforms, the YOKOGAWA F3AD08-4V (F3AD084V Analog Input Module) provides direct physical/electrical execution of 8-channel analog voltage monitoring.
| Parameter | Specification |
|---|---|
| Model | F3AD08-4V |
| Brand | YOKOGAWA |
| Origin | Japan |
| Weight | 0.2 kg |
| Dimensions | 25 × 100 × 90 mm |
| Operating Temp | 0 deg C to +55 deg C |
| Power Consumption | 5 V DC, 0.5 W |
| Input Channels | 8 (Differential) |
| Input Range | ±10 V DC |
| Resolution | 16-bit |
| Accuracy | ±0.1% of full scale |
The F3AD08-4V utilizes an integrated 16-bit analog-to-digital converter to transform field-level voltage signals into digital values compatible with FA-M3 logic processing. To ensure signal integrity, the module employs differential input circuitry coupled with optical isolation between the field inputs and the system bus. This architecture effectively suppresses common-mode noise and prevents ground-loop currents from degrading measurement accuracy. The module interfaces directly with the FA-M3 backplane, supporting synchronized backplane bus communication velocity management to ensure data updates are consistent with the controller scan cycle, thereby maintaining deterministic performance in time-critical control loops.
Q: Does the F3AD08-4V support hot-swapping?
A: No. The FA-M3 base unit must be de-energized prior to installing or removing the F3AD08-4V to prevent electrical stress on the backplane communication pins and to ensure a stable startup initialization.
Q: Is this module capable of measuring current signals (4-20 mA)?
A: No. The -4V suffix denotes a voltage-input specific model (±10 V DC). Current-based signal acquisition requires the use of appropriate shunt resistors or a dedicated current-input module.
Q: Can the conversion speed be adjusted?
A: The conversion speed is fixed at <= 1 ms per channel to ensure high-speed, deterministic sampling; the module firmware handles all timing requirements for A/D conversion sequencing.
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