Product Name: Analog I/O Module
Model: SA-8801

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​Analog Input

Channels:
4 channels (configurable as input/output; supports voltage/current)

Type:
Analog Input (Voltage / Current / ADC)

Range:
• Voltage Input: 0–10 V
• Current Input: 4–20 mA

Resolution: 24-bit

Input Impedance / Current Mode:
High impedance in voltage mode; supports internal loop-powered configuration for 4–20 mA input

Overvoltage Protection:
Withstands up to ±40 V (absolute maximum), with ESD protection

Overcurrent Protection:
Maximum 25 mA (DAC current input); supports short circuit (SC) and open circuit (OC) fault flags

Per-Channel Configuration:
Each channel supports independent configuration of mode, range, diagnostics, and power switching (AVDD_HI/LO)

Disconnection Detection:
Supports open/short circuit diagnostics (SC for current input, OC for voltage input) with status flags

Isolation:
External ADuM digital isolator with 2.2 mm isolation gap

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Analog Output

Data acquisition method: OpenThread (802.15.4)

Data update frequency:
- Thread: 1 minute
- Local measurement: 0.5 seconds
- Modbus485: 0.5 seconds

Channels:
4 channels (configurable as input/output; supports voltage/current)

Type:
Voltage Output / Current Output / Digital I/O

Range:
• Voltage Output: 0–10 V
• Current Output: 4–20 mA

Resolution:
16-bit DAC

Output Accuracy:
Current Output TUE: ±0.2% FSR

Fault Diagnostics:
Supports open/short circuit detection (OC for current output, SC for voltage output) with channel status flags

Output Capability:Max current output: 20 mA, with current limiting (internal RSENSE); short-circuit protection voltage approx. -120 ~ 240 mV

Power-On Default:Voltage output: 0 V; Current output: 0 mA; ADC inactive (safe default state)

Isolation:X1

Analog Output

Data Acquisition: OpenThread (802.15.4)

Data Update Rate: • Thread: 1 minute
• Local Measurement: 0.5 second
• Modbus RS485: 0.5 second