Product Model
IB ST 24 BAI 8/EF
Selling Points
- 18 Analog Inputs: Connects up to 8 analog inputs for voltage or current signals.
- 2DIN Rail Mounting: Easy installation on DIN rail for compact and efficient use.
- 3IP20 Protection: Ensures reliable operation in harsh industrial environments with IP20 protection.
- 4Fast A/D Conversion: Achieves A/D conversion times of up to 10 μs per channel for real-time data acquisition.
- 5Wide Signal Range: Supports various signal types including 0-5 V, 0-10 V, 0-20 mA, and more.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
| Parameter | Value | Parameter | Value |
|---|---|---|---|
Width | 118 mm | Height | 116 mm |
Depth | 117 mm | No. of channels | 2 |
Connection method | ST local bus connector | Transmission speed | 500 kbps |
Transmission physics | Copper | ID code (dec.) | 127 |
ID code (hex) | 7F | Length code (hex) | 4 |
Length code (dec) | 4 | Input address area | 8 Byte |
Output address area | 0 Byte | Register length | 8 Byte |
Input name | Analog inputs | Number of inputs | max. 8 (Voltage or current) |
A/D conversion time | max. 10 µs (per channel) | Connection technology | 2, 3-conductor |
Measuring principle | Successive approximation | Measured value representation | 8 bit straight binary (default) or 12 bit two’s complement (can be parameterized) |
Number of inputs | 8 (Voltage inputs) | A/D converter resolution | 12 bit (4096 steps; 2.44 mV/quantization steps)
8 bit (256 steps; 39 mV/quantization steps) |
Voltage input signal | 0 V ... 10 V
0 V ... 5 V
0 V ... 25 V
0 V ... 50 V | Input resistance of voltage input | 150 kΩ |
Number of inputs | 8 (Current inputs) | A/D conversion time | max. 10 µs |
A/D converter resolution | 12 bit (4096 steps; 3.91 µA/quantization steps)
8 bit (256 steps; 62.7 µA/quantization steps) | Current input signal | 4 mA ... 20 mA
0 mA ... 20 mA
0 mA ... 40 mA
0 mA ... 60 mA (rms)
0 mA ... 100 mA (peak) |
Input resistance current input | 77 Ω | Product type | I/O component |
Type | modular
INTERBUS Smart Terminal | Operating mode | Process data mode with 4 words |
Diagnostics messages | Failure of the internal I/O supply I/O error message sent to the bus coupler
F1 fuse failure I/O error message sent to the bus coupler
I/O supply failure I/O error message sent to the bus coupler | Connection method | ST local bus connector |
Designation | Communications power | Supply voltage | 9 V DC (from the ST local bus) |
Current consumption | typ. 54 mA
max. 80 mA | Power consumption | typ. 0.5 W |
Designation | U | Supply voltage | 24 V DC |
Supply voltage range | 19.5 V DC ... 30.2 V DC (including all tolerances, including ripple) | Current consumption | typ. 45 mA (I
typ. 120 mA (I |
Designation | U | Supply voltage | 15 V ±6 % |
Current consumption | max. 100 mA (Total for all channels) | Test voltage: Bus/Inputs | 500 V AC, 50 Hz, 1 min |
Test voltage: Supply voltage/inputs | 500 V AC, 50 Hz, 1 min | Test voltage: Supply voltage/Ground conductor | 500 V AC, 50 Hz, 1 min |
Test voltage: I/O voltage/Ground conductor | 500 V AC, 50 Hz, 1 min | Connection name | Terminal block |
Connection method | Screw connection | Conductor cross section rigid | 0.2 mm² ... 2.5 mm² |
Conductor cross section flexible | 0.2 mm² ... 2.5 mm² | Conductor cross section AWG | 24 ... 12 |
Stripping length | 8 mm | Connection method | Screw connection |
Conductor cross section, rigid | 0.2 mm² ... 2.5 mm² | Conductor cross section, flexible | 0.2 mm² ... 2.5 mm² |
Conductor cross section AWG | 24 ... 12 | Stripping length | 8 mm |
Ambient temperature (operation) | -25 °C ... 55 °C | Degree of protection | IP20 |
Air pressure (operation) | 80 kPa ... 106 kPa (up to 2000 m above sea level) | Air pressure (storage/transport) | 80 kPa ... 106 kPa (up to 2000 m above sea level) |
Ambient temperature (storage/transport) | -25 °C ... 70 °C | Permissible humidity (operation) | 10 % ... 95 % (non-condensing) |
Permissible humidity (storage/transport) | 10 % ... 95 % (non-condensing) | Protection class | III (IEC 61140, EN 61140, VDE 0140-1) |
Mounting type | DIN rail mounting |
Specifications may be subject to change without notice