ABB IMDSI15 Digital Input Module
The ABB IMDSI15, also cataloged as the IMDSI15 Digital Input Module, operates as a dedicated hardware component for discrete signal acquisition within ABB Bailey INFI 90 and Symphony Plus platforms. It senses binary field states from proximity switches, pushbuttons, and auxiliary contacts, translating 24 VDC field voltage levels into logic-level data for transmission across the backplane bus.
Suffix Breakdown & Model Matrix
The IMDSI15 module series includes the following part numbers and system matrix options:
- IMDSI15: Standard 16-channel digital input slave module for discrete sensor monitoring.
- IMDSI15R: Redundant-capable digital input module configuration.
- PIMDSI15 / YIMDSI15: Designated sub-assembly variants and factory replacement module part numbers.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IMDSI15 |
| Brand | ABB |
| Origin | Switzerland |
| Weight | 0.46 kg |
| Dimensions | 17.8 x 5.1 x 12.6 cm |
| Operating Temp | 0 to +55 deg C |
| Power Consumption | 3.6 W typical (150 mA logic current consumption) |
| Supply Voltage | 24 VDC (20-30 VDC operating range) |
| Number of Channels | 16 independent digital input channels |
| Nominal Input Voltage | 24 VDC |
| Input Current | 7 mA per channel |
| Logic Thresholds | Logic 0: 0-5 VDC; Logic 1: 15-30 VDC |
| Propagation Delay | 5 ms typical input delay |
| Optical Isolation | 500 V RMS isolation between field inputs and logic bus |
| System Compatibility | INFI 90, Symphony Plus DCS |
Backplane Bus Communication & Process Control Integration
The IMDSI15 module scales I/O density while preserving backplane bus communication velocity across INFI 90 chassis structures. Internal optical isolation rated to 500 V RMS prevents electrical transients and common-mode field noise from leaking into backplane logic buses. Integrated input filtering limits propagation delays to 5 ms, establishing predictable state detection across fast industrial interlocks. Dedicated front-panel status LEDs provide direct optical confirmation for each of the 16 independent input channels during active scan cycles.
Frequently Asked Questions
Q: What are the voltage thresholds for detecting logical states on the IMDSI15 input channels?
A: A field voltage between 0 VDC and 5 VDC registers as a logical "0" (OFF state), while an input voltage between 15 VDC and 30 VDC registers as a logical "1" (ON state). Voltages within the 5 to 15 VDC range represent an indeterminate transition band.
Q: Is external power required to operate the field input loops on the IMDSI15?
A: Yes, while logic circuits draw power through the backplane connection, field contacts require an external 24 VDC power supply routed through the module's associated termination assembly to loop 7 mA per channel through field switches.
Field Installation Guidelines
Follow these core steps during installation and maintenance procedures:
- De-energize the host cabinet rack and slide the IMDSI15 module into its assigned slot in the INFI 90 Module Mounting Unit (MMU).
- Push the card in firmly until the backplane edge connectors interlock completely with the rack frame assembly.
- Fasten the top and bottom retaining screws on the front panel to establish mechanical chassis grounding.
- Route field contact wiring through dedicated shielded cables, separating 24 VDC discrete wiring from high-voltage AC power conductors.
- Connect cable shields to the main cabinet grounding bus bar using low-impedance grounding clamps to prevent high-frequency noise interference.
| Quick Quotes | Receive price & availability FAST from our dedicated customer service team. |
|---|---|
| Delivery | Expedited, Freight, And International Shipping Available. |
| Condition | 100% New with Original Package |
| Payment | We accept American Express, Discover, MasterCard, PayPal, and Visa. Our site is secured by RapidSSL. |
| Shipping Port | ShangHai, Xiamen |
| Warranty | 12 Months |
| Q: Is Our Pricing Competitive? |
| A: Yes, we collaborate with over 50 countries worldwide. As a top supplier in China, we offer significant discounts based on market trends. |
| Q: What Is the Warranty Period? |
| A: All our new and original products come with a standard one-year warranty. |
| Q: What Payment Methods Do We Accept? |
| A: We require 100% T/T (Telegraphic Transfer) payment before shipping. For items with a lead time, a 30% deposit is needed upfront, and the remaining 70% is due before shipping. If you have a representative in China, you can arrange an RMB transfer through them. |
| Q: What Shipping Methods Do We Use? |
| A: We primarily use FedEx, DHL, UPS, and BRE for shipping. If you have an account with any of these carriers, you can handle shipping directly. We also offer free shipping to China-based freight forwarders. |
| Q: What Is Our Delivery Time? |
| A: Delivery usually takes 1-3 days after receiving the initial payment. For items with a lead time, shipping will occur according to the specified schedule. |
| Q: How Do We Package the Goods? |
| A: We ensure safe packaging with multiple layers of protection. Products are first placed in their original boxes and sealed with labels. A layer of bubble wrap is then added for collision protection during transit. Finally, the items are packed securely in durable boxes. |
| Q: How Can Customers Contact Us and Request a Quote? |
| A: You can reach out to us via email, WhatsApp, WeChat, Skype, or your preferred communication platform. Contact us with your needs, and we'll provide a prompt, customized quote. |
Recently Viewed
Express Shipping
Extensive Inventory
Quality Assurance
