Description
Product Overview
The IBA SM128V is a VMEbus interface board designed to connect VME-based industrial control systems with iba measurement and automation platforms. Operating as part of the ibaLink interface family, the module provides a high-speed communication path for transferring analog and digital process data between VME PLC systems, industrial computers, and iba acquisition software environments. The IBA SM128V is mainly applied in demanding automation installations where synchronized data capture, process analysis, and real-time monitoring are required.
Built for VME32 and VME64 systems, the SM128V uses fiber optic communication channels to exchange process signals while reducing sensitivity to electrical interference commonly found around large industrial equipment. The board supports one bidirectional fiber optic link carrying up to 64 analog and 64 digital inputs/outputs, together with an additional unidirectional link for expanded signal transfer. All channels are transmitted with synchronized timing, making the module suitable for applications such as production line analysis, drive system monitoring, and high-speed machine diagnostics.
The IBA SM128V remains valuable in plants operating established VME automation platforms because many production systems depend on long-service industrial computers that cannot be replaced without significant engineering effort. In practical maintenance situations, engineers normally evaluate VME backplane compatibility, iba software configuration, fiber interface type, and existing channel mapping before installation. The module requires a 5 V supply from the VMEbus and occupies a standard VME slot, allowing integration into compatible industrial racks.
Product Introduction (Non-Templated)
High-speed process analysis becomes difficult when legacy VME controllers cannot directly communicate with modern acquisition software. The IBA SM128V addresses this gap by acting as a fiber optic bridge between VME automation hardware and iba data processing systems.
Designed for industrial measurement, PLC integration, and DCS monitoring environments, the module transfers synchronized analog and digital signals through fiber links. With 1 ms transmission timing and support for 128 signal channels per link configuration, it is commonly selected for VME system extension and legacy replacement projects.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | SM128V |
| Manufacturer | IBA (iba AG) |
| Product Type | VMEbus Fiber Optic Interface Board |
| Series | ibaLink VME Interface Series |
| Form Factor | 6U VMEbus Board |
| Bus Standard | VME32 / VME64 |
| Communication Interface | Fiber Optic Link |
| Fiber Channel 1 | Bidirectional, 64 Analog + 64 Digital I/O |
| Fiber Channel 2 | Unidirectional Output Link |
| Signal Synchronization | 1 ms transmission cycle |
| Power Supply | +5 VDC via VMEbus |
| Compatible Systems | VME PLCs, industrial computers, ibaPDA, ibaLogic |
| Application | Data acquisition, process monitoring, automation control |
| Mounting | VME chassis slot |
| Condition | New Surplus, Factory Sealed |
Related Products
- ibaLink-SM-128V-i-2o — Updated interface variant designed for VME communication with iba systems. Supports VME access functions and fiber-based process data exchange.
- ibaFOB-io — Fiber optic interface hardware used with iba systems for connecting field I/O signals and measurement devices.
- ibaFOB-4i — Multi-channel fiber optic input interface for iba acquisition systems requiring multiple synchronized signal connections.
- ibaFOB-4o — Fiber optic output interface module used when iba systems need to transmit signals toward external automation devices.
- ibaPDA — iba data acquisition software platform commonly paired with for recording and analyzing industrial process data.
- ibaLogic — SoftPLC and automation software environment that can use iba hardware interfaces for control and monitoring applications.
- ibaPADU-8-IO — Process I/O device family compatible with ibaLink communication solutions for distributed signal acquisition.

SM128V
Frequently Asked Questions (FAQ)
1. Is the IBA compatible with my existing VME PLC rack?
Compatibility depends on the VME backplane, controller type, iba interface hardware, and software configuration.
Before installation, verify:
- VME32 or VME64 rack compatibility
- Available slot space
- Fiber optic interface type
- iba software configuration
- Existing channel mapping
The board requires a compatible VME environment rather than operating as a standalone controller.
2. Can I hot-swap this?
No. The should normally be installed or removed only after the VME system has been powered down.
VME systems generally require controlled shutdown procedures because the board depends on backplane communication and system addressing.
3. Does the support firmware v3.1?
Firmware support depends on the exact hardware revision and iba software version.
For verification:
- Check the board identification label
- Confirm ibaLink software compatibility
- Review existing configuration files
- Match firmware requirements with the installed iba environment
A similar model number does not always indicate identical firmware behavior.
4. Will replacing the erase my control logic?
No. The functions as a communication interface, not the primary location for PLC application logic.
After replacement, engineers should verify:
- Fiber channel assignment
- Signal mapping
- ibaPDA or ibaLogic configuration
- Data acquisition settings
The main control program normally remains stored in the VME processor or control system database.
5. How can I verify a New Surplus IBA is authentic?
A proper inspection process should include:
- Checking iba identification labels
- Confirming model number and hardware revision
- Inspecting VME connectors and fiber ports
- Reviewing available functional test records
Unused inventory status should still be confirmed before installation in production equipment.
6. Can the be used in a DCS system upgrade?
Yes, in architectures where VME-based control equipment remains part of the system design.
Typical uses include:
- Extending service life of existing automation racks
- Connecting legacy PLC data to modern analysis systems
- Supporting machine monitoring upgrades
A complete compatibility review is recommended before migration work.
7. What should engineers check before commissioning the ?
Recommended checks include:
- Confirm VME rack addressing
- Verify fiber optic connection type
- Check iba software configuration
- Validate signal channel assignments
- Perform communication testing before returning the system to service
These steps help prevent unexpected data loss or incorrect signal interpretation.
