Product Model
IB ST ZF 24 BAI 8/EF
Key Features
- 1Supports 0 - 5 V, 0 - 10 V, 0 - 25 V, 0 - 50 V, and 0 - 60 mA.
- 2IP20 degree of protection ensures reliable operation in various environments.
- 3Easy and secure connection of sensors using spring-cage technology.
- 4Convenient mounting on DIN rail for easy integration into control systems.
- 5Meets EMC class A standards for electromagnetic compatibility.
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 | Maximum power dissipation for nominal condition | 0.5 W |
| 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 | Spring-cage 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 | Spring-cage 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