Description
General Information:
- Model Number: SM1234 AI4 x 13 Bits & AQ2 x 14 Bits
- Article Number: H7 234-4HE32-0XB0
- Description: Analog input & output module with 4 analog inputs and 2 analog outputs. It supports 13-bit resolution for inputs and 14-bit resolution for outputs.
- Dimensions (WxHxD): 45 x 100 x 75 mm
- Power Consumption: 2W
- Current Consumption (SM bus): 80 mA
- Current Consumption (24V DC): 60 mA (no load)
Analog Inputs (AI4):
- Number of Inputs: 4
- Input Type: Voltage or current (differential) — 2 can be selected as a group.
- Input Range:
- Voltage: ±10 V, ±5 V, ±2.5 V
- Current: 0-20 mA or 4-20 mA
- Full-Scale Range (Data Word): -27,648 to 27,648
- Overshoot/Undershoot Range (Data Word):
- Voltage: 32,511 to 27,649 / -27,649 to -32,512
- Current: 32,511 to 27,649 / 0 to -4,864
- Overflow/Underflow (Data Word):
- Voltage: 32,767 to 32,512 / -32,513 to -32,768
- Current: 32,767 to 32,512 / -4,865 to -32,768
- Resolution: 12 bits + signal bits
- Max Voltage/Current Resistance:
- Voltage: ±60 V
- Current: ±40 mA
- Precision (25°C / 0-55°C): Full range ±0.1% / ±0.2%
- Analog to Digital Conversion Time: 625 μs (400 Hz inhibited)
- Working Signal Range: Common mode voltage must be between -12V and +12V.
- Common Mode Rejection: 40 dB, DC to 60 Hz
Analog Outputs (AQ2):
- Number of Outputs: 2
- Output Type: Voltage or current
- Output Range:
- Voltage: ±10 V
- Current: 0-20 mA or 4-20 mA
- Data Word Format:
- Voltage: -27,648 to 27,648
- Current: 0 to 27,648
- Resolution:
- Voltage mode: 14 bits
- Current mode: 13 bits
- Max Operating Resistance: ±60 V
- Isolation (Field Side and Logic Side): 500 VAC
- Precision (25°C / 0-55°C): Full range ±0.3% / ±0.6%
- Stability Time:
- Voltage: 300 μs (resistor), 750 μs (1 μF capacitor)
- Current: 600 μs (1 mH), 2 ms (10 mH)
- Load Impedance:
- Voltage: ≥ 1000 Ω
- Current: ≤ 600 Ω
- Output Status in STOP Mode: Previous value or replacement value (default is 0)
Diagnostic Features:
- Overflow/Underflow: Supported
- Short Circuit (Voltage Mode): Support for short circuit to ground
- Circuit Break (Current Mode): Support for circuit break mode