Description
F0-08ADH-1 AutomationDirect Interface module
Product Dimensions:
Product Description
The F0-08ADH-1 is an 8-channel, 16-bit current analog input module. This module allows a DL05 or DL06 PLC to interface with high-precision industrial sensors that output standard current signals (0-20mA or 4-20mA). Because it offers 16-bit resolution, it provides significantly higher accuracy than standard 12-bit modules, making it suitable for processes where minute changes in data are critical.
Product Parameters
| Parameter | Specification |
| Manufacturer | AutomationDirect (Koyo) |
| Number of Channels | 8 Single-ended (1 common) |
| Input Range | 0–20 mA or 4–20 mA (Jumper selectable) |
| Resolution | 16-bit ($1$ part in $65,536$) |
| PLC Compatibility | DL05 and DL06 series |
| Update Range | 8 channels per scan (approx. 1ms per channel) |
| Input Impedance | $250 \Omega$ |
| Accuracy | $\pm 0.1\%$ of full scale at $25°C$ |
| Power Consumption | 25 mA @ 5V DC (from PLC base) |
| External Power | None required (uses PLC internal power) |
Product Advantages
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High Density: Provides 8 analog channels while occupying only one expansion slot, preserving space for other modules.
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Superior Precision: The 16-bit resolution ($0$ to $65,535$ counts) allows for extremely fine measurements, such as precise pressure or chemical level monitoring.
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Cost-Effective: Offers a professional-grade analog interface at a fraction of the cost of larger modular PLC systems.
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Easy Integration: Uses the standard V-memory pointers in DirectSOFT programming, making it easy to map sensor data to the PLC logic.
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Jumpers for Range: Simple hardware jumpers allow you to switch between 0-20mA and 4-20mA configurations without complex software changes.
Safety and Maintenance
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Single-Ended Inputs: This module uses a single common for all 8 channels. Ensure that your sensors are compatible with a common-ground configuration to avoid ground loops.
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Twisted Pair Wiring: To maintain the 16-bit accuracy, use shielded twisted-pair cable for all analog signals and ground the shield at the PLC end only.
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Slot Limitation: In a DL05, only one slot is available. In a DL06, you have two slots; if using two analog modules, verify the total power budget of the PLC base.
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Current Loop Warning: Do not apply voltage directly to the current inputs without a current-limiting resistor, as this may damage the $250 \Omega$ precision resistors on the board.
Typical Applications
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Precision Process Control: Monitoring flow rates, pressure, or temperature in chemical or food processing where high accuracy is required.
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Water Treatment: Tracking tank levels or PH levels across 8 different stages using 4-20mA sensors.
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Environmental Monitoring: Interfacing with gas sensors or humidity transmitters for greenhouse or laboratory control.
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Oil and Gas: Remote monitoring of pipeline pressure transducers.
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HVAC Systems: Controlling multiple variable frequency drives (VFDs) feedback loops or air quality sensors.
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
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