Abaco Systems / VMIC VME-1182A-020000 Digital Input Module

The Abaco Systems / VMIC VME-1182A-020000 is a 64-channel digital input module designed for VMEbus systems. This module offers robust functionality for data acquisition and event monitoring with features for change-of-state (COS) detection, time tagging, and pulse accumulation. It is designed to integrate into industrial and military applications requiring high-reliability I/O processing. The VME-1182A operates within a VME 6U form factor and provides opto-isolated inputs, supporting a range of I/O voltage levels.

### Technical Specifications

* **Channels:** 64 Input Channels
* **Isolation:** Optically isolated inputs
* **Form Factor:** VME 6U
* **Data Transfer Bits:** 8, 16, 32

### Functional Capabilities

* **Change-of-State (COS) Detection:**
* Detects rising edges, falling edges, or both on a per-channel basis.
* Software-controlled COS monitoring and selection.
* Can be programmed to ignore changes for specific channels.
* **Sequence of Events (SOE) Acquisition:**
* COS data can be used for SOE acquisition.
* Onboard buffer stores COS information with time tags for event analysis.
* SOE memory allocated into two buffers, allowing simultaneous processing and loading.
* SOE monitoring on a channel-by-channel basis.
* **Pulse Accumulation:**
* Provides pulse accumulation reporting per channel.
* Pulse accumulation count registers record the number of events per channel.
* Supports accumulation for up to 65,535 pulses per channel.
* **Time Tagging:**
* COS events can be time-tagged with a relative timer value.
* Relative timer values up to 65,535ms.
* Time tag clock can be reset from the VME.
* **Programmable Debounce:**
* Programmable debounce times on a channel-by-channel basis to reject spurious input pulses.
* Debounce time is software-controlled.
* Debounce time can range from 1.25ms to 1.024s.
* Minimum pulse time reliably detected is 2ms.
* If detecting both rising and falling edges, minimum time in each state is 2ms, resulting in a 4ms minimum period for continuous input signals.

### Electrical and Interface Specifications

* **I/O Voltage Range:** 5 to 60 VDC, 110, 240 VAC. (Specific ordering options may provide wider ranges such as 5 to 250VDC or 4 to 240VAC)
* **Channel-to-Channel and Channel-to-VME Isolation:** 1500VDC or 1100VRMS
* **Input Configuration Options:** Available in contact sensing or voltage sensing options
* **Interface:** Opto-isolated inputs via Front I/O

### Physical and Environmental Specifications

* **Form Factor:** VME 6U

### Compatibility and Addressing

* **VMEbus Compatibility:** Complies with VMEbus specification (ANSI/IEEE STD 1014-1987 IEC 821 and 297)
* **Addressing:**
* A24/A16 addressing capability
* Jumper-selected addressing supports both A24 and A16 address space.
* Address modifiers are jumper-selected and decoded to support nonprivileged, supervisory, or both nonprivileged and supervisory access.

### Special Features

* **Multifunctional Intelligent Controller:** Enables per-channel control of COS, SOE, pulse accumulation, debounce times, and time tagging.
* **Self-Test:** Automatic self-test runs after system reset, setting the Self-Test Complete bit in the Control and Status Register (CSR) to one upon completion.
* **Interrupts:** VME interrupts can be issued on any user-selected level, with Release-On-Acknowledge (ROAK) capability.
* **UIOC® Compatibility:**
* **Compliance:** Complies with ANSI/IEEE STD C37.90.1-1989 surge protection when used with a companion suppression panel (e.g., VMIVME-3459).

### Product Lifecycle Status

* **Restricted Production Phase (RPP):** Entered RPP on September 30, 2025. Documentation and software are available via download. Contact for product support and migration assistance.

Why Choose Aumictech for the Abaco Systems / VMIC VME-1182A-020000?
At Aumictech, we specialize in supplying high-end VMEbus I/O equipment. Whether you need precise digital input acquisition, robust sequence-of-events monitoring, or reliable pulse accumulation for your critical systems, our team ensures the Abaco Systems / VMIC VME-1182A-020000 delivers maximum performance for your application.