Product Model
IBS ST 24 BK RB-LK DIO8/8/3-LK
Key Features
- 1Compact design for space-constrained applications.
- 28 digital inputs and 8 digital outputs with screw-cage terminal blocks or FLK connectors.
- 3Fiber-optic remote bus branch for extended connectivity.
- 4IP20 protection for reliable operation in various environments.
- 5Modular design with additional I/Os onboard and remote/local bus branches.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Type | modular | Mounting position | Horizontal DIN rail |
| No. of channels | 16 | Supply voltage | 24 V DC |
| Supply voltage range | 18.5 V DC ... 30.5 V DC (including ripple) | Current consumption | 170 mA (without ST module expansions)
typ. 470 mA (For maximum number of I/O modules on the ST local bus) |
| Ripple | 3.6 V | Test voltage: Incoming remote bus / Outgoing remote bus | 500 V AC, 50 Hz, 1 min |
| Test voltage: Incoming remote bus/local bus | 500 V AC, 50 Hz, 1 min | Input name | Digital inputs |
| Number of inputs | 8 | Connection method | Screw-cage terminal blocks or FLK connectors |
| Connection technology | 3-conductor | Input voltage | 24 V DC |
| Input voltage range "0" signal | -30 V DC ... 5 V DC | Input voltage range "1" signal | 13 V DC ... 30 V DC |
| Nominal input current at U | typ. 5 mA (per channel) | Typical response time | ≥ 1 ms (typical) |
| Protective circuit | Overload protection; Fuse in header | Output name | Digital outputs |
| Connection method | Screw-cage terminal blocks or FLK connectors | Connection technology | 3-conductor |
| Number of outputs | 8 | Protective circuit | Short-circuit protection; electronic
Overload protection; Fuse in header |
| Maximum output current per group | 2 A | Maximum output current per channel | 500 mA |
| Maximum output current per module / terminal block | 4 A | Nominal load, lamp | 12 W |
| Nominal load, ohmic | 12 W | Maximum operating frequency with ohmic nominal load | max. 150 Hz (48 Ω) |
| 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 |
| Connection method | FSMA plugs | Designation connection point | Incoming/Outgoing Remote Bus |
| Transmission speed | 500 kbps | Transmission physics | Polymer fiber |
| Connection method | ST local bus connector | Connection method | FSMA plugs |
| Max. number of local bus devices | max. 4 | Width | 118 mm |
| Height | 117 mm | Depth | 116 mm |
| Ambient temperature (operation) | 0 °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) | 75 % (on average, 85% infrequently, non-condensing) |
| Permissible humidity (storage/transport) | 75 % (on average, 85% infrequently, non-condensing) | Protection class | III (IEC 61140, EN 61140, VDE 0140-1) |
| Mounting type | DIN rail mounting | Mounting position | Horizontal DIN rail |
Specifications may be subject to change without notice