Product Details
The Yokogawa VM1*B, also cataloged as the VM1*B Multipoint Analog Input/Output Module, operates as a dedicated hardware component for continuous analog signal acquisition and loop output control within CENTUM series and e-RT3 system architectures. It converts field sensor signals into high-resolution digital values and executes real-time control adjustments across configurable analog channels.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | VM1*B |
| Brand | Yokogawa |
| Origin | Japan |
| Weight | 0.2 kg |
| Dimensions | Standard sub-rack card slot dimensions |
| Operating Temp | 0 to 55 deg C |
| Power Consumption | System backplane bus powered |
| Product Type | Multipoint Analog Input/Output Module |
| Conversion Resolution | 16-bit analog-to-digital (A/D) conversion |
| Selectable Signal Ranges | 1-5 V voltage, 4-20 mA current |
| I/O Configuration | Multipoint input/output configurable |
| System Platforms | CENTUM series, e-RT3 systems |
4-20 mA HART Loop Protocol and Channel Isolation
The VM1*B incorporates channel-to-channel isolation circuits to break ground potential loops and shield internal processor logic from industrial field interference. With integrated 16-bit A/D converters, the card supports high-precision digitizing of 1-5 V and 4-20 mA standard process signals. Built-in signal conditioning circuits compensate for line resistance variations and suppress common-mode electrical noise across all analog channels prior to data transmission over the system backplane.
Frequently Asked Questions
Q: Does the VM1B module support both analog input and analog output signals simultaneously?
A: Yes, the VM1B operates as a multipoint analog I/O card capable of processing analog inputs and driving analog output loops based on module configuration.
Q: What analog signal levels can be wired to the VM1*B input terminals?
A: The input channels support standard industrial analog signal ranges, including 1-5 V voltage signals and 4-20 mA current loops.
Q: How does the module maintain measurement accuracy in high-noise industrial environments?
A: The board utilizes 16-bit high-resolution digital conversion coupled with internal channel isolation and filtering circuits to suppress common-mode noise.
Field Installation Guidelines
- ESD Protection: Always ground yourself using an anti-static wrist strap before removing or inserting the card to protect sensitive CMOS circuits from electrostatic damage.
- Rack Mounting: Slide the card firmly into its designated rack slot along the guide rails until the backplane connector locks securely into place. Tighten any panel retention screws to maintain ground continuity.
- Cable Shielding: Connect signal cable shields to the dedicated instrument ground bar at a single termination point to prevent shield current loops.
- Wiring Separation: Route low-voltage analog signal cables separately from high-voltage AC power cables within cabinet wireways to minimize electromagnetic cross-talk.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Understanding Marshalling Cabinets in Industrial Control Systems Architecture
Industrial control system deployments rely on structured signal distribution to bridge field instrumentation with central processing hardware. A marshalling cabinet serves as the vital intermediate connection point between heavy field home-run multi-pair cables and delicate input/output (I/O) modules housed inside Programmable Logic Controller (PLC) or Distributed Control System (DCS) enclosures. By segregating field cable terminations from control hardware, engineers maintain system flexibility, safeguard controller components, and streamline commissioning workflows.
FAT vs SAT in Industrial Control Systems: Key Differences and Execution Guide
Industrial control system deployment relies on strict verification protocols to guarantee operational safety, system stability, and regulatory compliance. Commissioning complex Programmable Logic Controller (PLC) racks, Distributed Control Systems (DCS), and Safety Instrumented Systems (SIS) requires two critical milestones: the Factory Acceptance Test (FAT) and the Site Acceptance Test (SAT). Both procedures validate that system automation meets design specifications, but they occur at different stages of project execution and target distinct operational risks.
Hub vs Switch vs Router in Industrial Automation Architecture
Modern factory automation relies on reliable industrial networking infrastructure to exchange real-time field data across operational technology systems. Engineers often encounter networking hardware like hubs, switches, and routers when integrating Programmable Logic Controllers, Distributed Control Systems, and SCADA monitoring nodes. Although these devices share physical ports, they operate at different layers of the Open Systems Interconnection reference model and deliver distinct traffic management capabilities.