Motorola  MVME-717传送器 I/O 模块

1.产 品 资 料 介 绍：

Motorola MVME-717 传送器 I/O 模块解析

一、核心技术特性

1. 多类型 I/O 通道：覆盖数字与模拟信号需求

（1）数字量 I/O（DI/DO）：高可靠开关信号交互

• 数字输入（DI）：典型支持 16-32 路独立 DI 通道，输入电平兼容 TTL（5V）/ 工业干接点（24V/48V），可直接连接光电传感器、限位开关、急停按钮等设备，采集 “物料到位”“设备故障告警”“安全门开关” 等开关状态；
  • 关键通道支持 边缘触发中断（上升沿 / 下降沿可编程），当外部信号突变时（如急停按钮按下），模块主动向 CPU 发送 VME 中断请求，中断响应延迟≤10μs，避免 CPU 轮询占用资源，保障紧急事件的快速响应；
• 数字输出（DO）：典型支持 8-16 路独立 DO 通道，输出类型为 集电极开路 / 推挽输出，每路最大驱动电流 500mA-1A，可直接驱动继电器、电磁阀、指示灯等执行器，实现 “电机启停”“阀门开关”“告警灯触发” 等控制动作；
  • 输出端集成 过流保护与短路保护，当负载短路（如继电器线圈粘连）或过流时，模块自动切断输出回路（保护阈值可通过软件配置），故障排除后可手动 / 自动恢复，避免硬件烧毁。

Motorola  MVME-717传送器 I/O 模块 英文资料：

Analysis of Motorola MVME-717 Transmitter I/O Module

The Motorola MVME-717 is an industrial grade transmitter I/O module based on the VMEbus architecture, designed specifically for the MVME717 series of single board computers (SBC). Its core positioning is "the signal interaction hub of embedded systems" - by integrating digital/analog I/O channels, sensor/actuator adaptation interfaces, and industrial grade anti-interference design, it achieves "data acquisition instruction output" bidirectional interaction with external devices (such as sensors, relays, servo drives). It can work together with the MVME717 series CPU module and other VME expansion modules to adapt to scenarios that require "signal reliability+real-time" in industrial automation, machine tool control, power monitoring, etc. It is a key I/O component for building a complete embedded control system.

1、 Core technical characteristics

1. Multi type I/O channels: covering digital and analog signal requirements

The core advantage of MVME-717 lies in its "full scene signal adaptation", which can handle both switch and continuous signals simultaneously without additional expansion, matching the diverse equipment connection needs of industrial sites

(1) Digital I/O (DI/DO): High reliability switch signal interaction

Digital Input (DI): Typically supports 16-32 independent DI channels, with input levels compatible with TTL (5V)/industrial dry contacts (24V/48V). It can be directly connected to photoelectric sensors, limit switches, emergency stop buttons, and other devices to collect switch statuses such as "material in place", "equipment fault alarm", and "safety door switch";

The critical channel supports edge triggered interrupts (with programmable rising/falling edges). When external signals suddenly change (such as pressing the emergency stop button), the module actively sends a VME interrupt request to the CPU, with an interrupt response delay of ≤ 10 μ s, to avoid CPU polling occupying resources and ensure fast response to emergency events;

Digital Output (DO): Typically supports 8-16 independent DO channels, with output types of collector open circuit/push-pull output. Each channel has a maximum driving current of 500mA-1A and can directly drive relays, solenoid valves, indicator lights, and other actuators to achieve control actions such as "motor start stop", "valve switch", and "alarm light trigger";

The output end integrates overcurrent protection and short-circuit protection. When the load is short circuited (such as relay coil adhesion) or overcurrent occurs, the module automatically cuts off the output circuit (the protection threshold can be configured through software). After troubleshooting, it can be manually/automatically restored to avoid hardware burnout.

 Motorola  MVME-717传送器 I/O 模块 产      品      展      示      

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