Product Description
Manufacturer: BACHMANN
Model/Part Number: SDI208
Description: Safety Digital Input Module
Item Numbers:
-
SDI208: 00014544-00
-
SDI208❄: 00017459-00
Features
- 16 digital inputs – can be used redundantly in pairs (PL e/SIL3/Cat 4)
- Safe monitoring of the inputs with redundant 32-bit microcontrollers
- Multiple SDI208 modules per controller possible
- All safety I/O states accessible by M1 controller
- Safety programming via SolutionCenter
- Galvanic isolation between groups and from the system
- Operating state display: "SAFE"
- Status display for each channel via LED
Digital Inputs
| Parameter |
Specification |
| Quantity |
16 digital inputs (can be used redundantly in pairs, PL e/SIL3/Cat 4) |
| Input Voltage Range (H) |
15–34V DC |
| Input Voltage Range (L) |
-34 to +5V DC |
| Input Delay (HW) |
300µs |
| Input Delay (SW) |
1ms (with deactivated test clocking) |
| Input Type |
IEC 61131-2 Type 1 |
| Input Current |
≥3.5mA at 24V DC |
| Status Display (LED) |
Green |
| Error Monitoring |
Internal function monitoring |
| External Test Clocking |
Optional |
Internal Power Supply
| Parameter |
Specification |
| Galvanic Isolation (System) |
500V |
| Galvanic Isolation (Groups) |
500V |
| Internal Power Supply |
Backplanes BS2xx |
| Current Consumption |
5V / 600mA via backplane |
External Power Supply
| Parameter |
Specification |
| Reverse Polarity Protection |
Yes |
| Input Voltage |
24V DC (18–34V) |
| Current Consumption |
65mA at 24V DC + Σ current consumption of encoders and sensors |
Connection Technology
- Screw or spring terminal
- Writable and codable plug
Standards Compliance
-
Machine Safety: IEC 61508 (Functional safety for E/E/PE safety components)
-
Approved for:
- ISO 13849 (Safety of machinery)
- IEC 62061 (Functional safety of machine-related E/E/PE systems)
- IEC 61511 (Functional safety in process industry)
- EN 954
-
Product Standards: IEC 61131-2, UL508
Additional Features
Operating Conditions
| Parameter |
Specification |
| Operating Temperature |
-20 to +60°C (fanless), -30 to +60°C (fanless for ColdClimate) |
| Relative Humidity (Operation) |
5–95% (with/without condensation) |
| Storage Temperature |
-40 to +85°C |
| Relative Humidity (Storage) |
5–95% (with/without condensation) |
Model Variants
-
SDI208: Safety digital input module; SIL3/PLe: 8× DI 24V (SIL2/PLd: 16× DI)
-
SDI208❄: Like SDI208, but ColdClimate version
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