Yokogawa SIF2*A Signal Interface Module Card
The Yokogawa SIF2*A, also cataloged as the SIF2*A Signal Interface Module Card, operates as a dedicated hardware component for field instrument signal conversion within Yokogawa CENTUM VP and CS 3000 Distributed Control Systems (DCS). The module translates heterogeneous analog voltage/current, discrete digital, and serial input signals across 8 interface channels into 16-bit digital data packets for direct backplane transmission to the primary control processor.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | SIF2*A |
| Brand | Yokogawa |
| Origin | Japan |
| Weight | 0.3 kg |
| Dimensions | 25 mm x 140 mm x 130 mm |
| Operating Temp | 0 to 55 deg C |
| Power Consumption | System Backplane Powered |
| Module Type | Signal Interface Module / PLC Card |
| Signal Conversion Resolution | 16-bit |
| Channel Capacity | 8 channels |
| Supported Signal Formats | Analog (Voltage/Current), Digital, Serial |
| System Compatibility | Yokogawa CENTUM VP, CS 3000 |
Cold Junction Compensation & 4-20 mA HART Loop Protocol
The Yokogawa SIF2*A interface architecture incorporates dedicated channel-to-channel isolation channels to decouple analog input loops and discrete field wiring from main backplane processing lines. The onboard signal conditioning layer maintains high thermal uniformity across terminals to support cold junction compensation (CJC) accuracy when processing temperature sensor inputs. Integrated trace design supports continuous 4-20 mA HART loop protocol transmission as well as FOUNDATION Fieldbus / Profibus PA connectivity paths without introducing line impedance distortion across high-density I/O runs.
Frequently Asked Questions
Q: Which Yokogawa control system backplanes natively accept the SIF2A interface card?
A: The SIF2A module is designed for direct insertion into Yokogawa CENTUM VP and CS 3000 DCS controller rack chassis.
Q: What signal types can be converted by the SIF2A input processing channels?
A: The SIF2A converts field analog voltage and current loops, discrete digital contact states, and serial data streams into digital data for the system controller.
Q: What resolution is utilized by the analog signal conversion circuitry on the SIF2*A?
A: The onboard analog-to-digital converter executes signal digitization at a 16-bit resolution level.
Field Installation Guidelines
- System Power Isolation: Switch off rack backplane power and isolate external 4-20 mA loop or contact supply sources before inserting or removing the SIF2*A card.
- Mechanical Installation: Align the module circuit board with the 25 mm chassis card slot guides and push firmly until the rear connector seats fully into the backplane socket.
- Field Wiring Connections: Connect field input conductors to the mating terminal block assembly. Verify that analog polarity and serial communication RX/TX lines match system pinouts.
- Shield Grounding: Route signal cables away from high-voltage AC lines and terminate all cable drain wires directly at the cabinet single-point earth ground bar to preserve noise immunity.
Yokogawa SIF2*A Signal Interface Module Card
Yokogawa SIF2*A Signal Interface Module Card
The Yokogawa SIF2*A, also cataloged as the SIF2*A Signal Interface Module Card, operates as a dedicated hardware component for field instrument signal conversion within Yokogawa CENTUM VP and CS 3000 Distributed Control Systems (DCS). The module translates heterogeneous analog voltage/current, discrete digital, and serial input signals across 8 interface channels into 16-bit digital data packets for direct backplane transmission to the primary control processor.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | SIF2*A |
| Brand | Yokogawa |
| Origin | Japan |
| Weight | 0.3 kg |
| Dimensions | 25 mm x 140 mm x 130 mm |
| Operating Temp | 0 to 55 deg C |
| Power Consumption | System Backplane Powered |
| Module Type | Signal Interface Module / PLC Card |
| Signal Conversion Resolution | 16-bit |
| Channel Capacity | 8 channels |
| Supported Signal Formats | Analog (Voltage/Current), Digital, Serial |
| System Compatibility | Yokogawa CENTUM VP, CS 3000 |
Cold Junction Compensation & 4-20 mA HART Loop Protocol
The Yokogawa SIF2*A interface architecture incorporates dedicated channel-to-channel isolation channels to decouple analog input loops and discrete field wiring from main backplane processing lines. The onboard signal conditioning layer maintains high thermal uniformity across terminals to support cold junction compensation (CJC) accuracy when processing temperature sensor inputs. Integrated trace design supports continuous 4-20 mA HART loop protocol transmission as well as FOUNDATION Fieldbus / Profibus PA connectivity paths without introducing line impedance distortion across high-density I/O runs.
Frequently Asked Questions
Q: Which Yokogawa control system backplanes natively accept the SIF2A interface card?
A: The SIF2A module is designed for direct insertion into Yokogawa CENTUM VP and CS 3000 DCS controller rack chassis.
Q: What signal types can be converted by the SIF2A input processing channels?
A: The SIF2A converts field analog voltage and current loops, discrete digital contact states, and serial data streams into digital data for the system controller.
Q: What resolution is utilized by the analog signal conversion circuitry on the SIF2*A?
A: The onboard analog-to-digital converter executes signal digitization at a 16-bit resolution level.
Field Installation Guidelines
- System Power Isolation: Switch off rack backplane power and isolate external 4-20 mA loop or contact supply sources before inserting or removing the SIF2*A card.
- Mechanical Installation: Align the module circuit board with the 25 mm chassis card slot guides and push firmly until the rear connector seats fully into the backplane socket.
- Field Wiring Connections: Connect field input conductors to the mating terminal block assembly. Verify that analog polarity and serial communication RX/TX lines match system pinouts.
- Shield Grounding: Route signal cables away from high-voltage AC lines and terminate all cable drain wires directly at the cabinet single-point earth ground bar to preserve noise immunity.
