Yokogawa ASD143-P00 Digital Input Module
The Yokogawa ASD143-P00 , also cataloged as the ASD143 Digital Input Module, operates as a dedicated hardware component for NAMUR-compliant discrete signal acquisition and intrinsic safety field interfacing within Yokogawa CENTUM and ProSafe systems.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | ASD143-P00 |
| Brand | Yokogawa |
| Origin | Japan |
| Weight | 0.50 kg (1.10 lbs) |
| Dimensions | 38 mm x 127 mm x 152 mm (1.5 in x 5.0 in x 6.0 in) |
| Operating Temp | -20 to 60 deg C |
| Power Consumption | 150 mA at 5 VDC, 110 mA at 24 VDC |
| Product Type | Digital Input Modules |
| Input Channels | 16 isolated channels |
| Signal Standard | NAMUR (IEC 60947-5-6) |
| Response Time | 15 ms input response time |
| Switching Frequency | 25 Hz maximum ON/OFF frequency |
| Pulse Detection | Pushbutton ON detection >= 20 ms |
| Isolation Voltage | 1500 VAC withstanding voltage |
4-20 mA HART Loop Protocol & Channel-to-Channel Isolation Integration
The ASD143-P00 conditions and digitizes field signals from proximity switches, pushbuttons, and discrete contact sensors deployed across hazardous plant zones. Featuring built-in intrinsic safety barriers and 1500 VAC channel-to-channel isolation, the module suppresses electromagnetic interference and eliminates ground loop current paths. The NAMUR-compliant input stage operates alongside 4-20 mA HART loop protocol analog architectures, providing discrete status feedback and pulse count telemetry directly to host CENTUM control units.
Frequently Asked Questions
Q: What input switching frequency and response limits are supported by the ASD143-P00?
A: The module processes input state transitions with a 15 ms response time, detecting pulse/pushbutton ON duration of at least 20 ms up to a maximum switching frequency of 25 Hz.
Q: Is external barrier hardware required for hazardous area NAMUR field sensor connections?
A: No, the ASD143-P00 features an integrated intrinsic safety barrier specifically engineered to interface directly with NAMUR (IEC 60947-5-6) field devices without external safety isolation components.
Field Installation Guidelines
- De-energize system backplane power and loop power supplies prior to inserting or removing the card assembly.
- Maintain strict ESD safety precautions, attaching a wrist strap to the chassis protective earth terminal before handling the module.
- Slide the ASD143-P00 along the card guides until the rear connector seats firmly into the rack baseplate backplane.
- Fasten top and bottom retaining screws to ensure solid chassis grounding and prevent loosening due to ambient vibration.
- Route NAMUR field signal wiring away from high-voltage AC cables, ensuring shields are grounded at a single protective earth point.
Yokogawa ASD143-P00 Digital Input Module
Yokogawa ASD143-P00 Digital Input Module
The Yokogawa ASD143-P00 , also cataloged as the ASD143 Digital Input Module, operates as a dedicated hardware component for NAMUR-compliant discrete signal acquisition and intrinsic safety field interfacing within Yokogawa CENTUM and ProSafe systems.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | ASD143-P00 |
| Brand | Yokogawa |
| Origin | Japan |
| Weight | 0.50 kg (1.10 lbs) |
| Dimensions | 38 mm x 127 mm x 152 mm (1.5 in x 5.0 in x 6.0 in) |
| Operating Temp | -20 to 60 deg C |
| Power Consumption | 150 mA at 5 VDC, 110 mA at 24 VDC |
| Product Type | Digital Input Modules |
| Input Channels | 16 isolated channels |
| Signal Standard | NAMUR (IEC 60947-5-6) |
| Response Time | 15 ms input response time |
| Switching Frequency | 25 Hz maximum ON/OFF frequency |
| Pulse Detection | Pushbutton ON detection >= 20 ms |
| Isolation Voltage | 1500 VAC withstanding voltage |
4-20 mA HART Loop Protocol & Channel-to-Channel Isolation Integration
The ASD143-P00 conditions and digitizes field signals from proximity switches, pushbuttons, and discrete contact sensors deployed across hazardous plant zones. Featuring built-in intrinsic safety barriers and 1500 VAC channel-to-channel isolation, the module suppresses electromagnetic interference and eliminates ground loop current paths. The NAMUR-compliant input stage operates alongside 4-20 mA HART loop protocol analog architectures, providing discrete status feedback and pulse count telemetry directly to host CENTUM control units.
Frequently Asked Questions
Q: What input switching frequency and response limits are supported by the ASD143-P00?
A: The module processes input state transitions with a 15 ms response time, detecting pulse/pushbutton ON duration of at least 20 ms up to a maximum switching frequency of 25 Hz.
Q: Is external barrier hardware required for hazardous area NAMUR field sensor connections?
A: No, the ASD143-P00 features an integrated intrinsic safety barrier specifically engineered to interface directly with NAMUR (IEC 60947-5-6) field devices without external safety isolation components.
Field Installation Guidelines
- De-energize system backplane power and loop power supplies prior to inserting or removing the card assembly.
- Maintain strict ESD safety precautions, attaching a wrist strap to the chassis protective earth terminal before handling the module.
- Slide the ASD143-P00 along the card guides until the rear connector seats firmly into the rack baseplate backplane.
- Fasten top and bottom retaining screws to ensure solid chassis grounding and prevent loosening due to ambient vibration.
- Route NAMUR field signal wiring away from high-voltage AC cables, ensuring shields are grounded at a single protective earth point.
