华远自动化系统有限公司 1
目 录
HY—6210多功能定时/计数器板···············································································································································3
一 概述··········································································································································································3
二 性能及技术指标·······················································································································································3
2.1 性能·········································································································································································3
2.2 应用·········································································································································································3
2.3 技术指标·································································································································································3
2.4 物理尺寸及环境要求·············································································································································4
三 工作原理···································································································································································5
3.1 原理框图·································································································································································5
3.2 原理概述·································································································································································5
四 主要元件位置图 信号输入/输出插座及选择开关 跳线定义··············································································6
4.1 主要元件位置图·····················································································································································6
4.2 信号输入/输出插座················································································································································6
4.3 开关及跳线选择·····················································································································································7
4.3.1 HY—6210板基地址选择······································································································································7
4.3.2 定时/计数器的门控选择·····································································································································8
4.3.3 定时/计数器1 2的时钟选择·····························································································································8
4.3.4 定时/计数器0的时钟选择···································································································································8
4.3.5 中断请求信号电平选择······································································································································9
4.3.6 中断请求信号源选择··········································································································································9
4.3.7 中断请求允许信号选择······································································································································9
4.3.8 中断请求级别选择··············································································································································9
五 寄存器描述及板内地址分配··································································································································11
5.1 可编程定时/计数器的操作方式··························································································································11
5.2 数字量输出寄存器···············································································································································11
5.3 数字量输入缓冲器···············································································································································11
5.4 定时/计数器内部门控寄存器······························································································································11
5.5 板内地址分配·······················································································································································11
六 安装 拆除步骤·····················································································································································12
6.1 安装步骤·······························································································································································12
6.2 拆除步骤·······························································································································································12
七 软件编程·································································································································································13
7.1 可编程定时/计数器8253······································································································································13
7.2 8253在HY—6210中的应用·····································································································································3
7.3 可编程I/O接口8255················································································································································4
7.3.1 8255的编程选择控制字······································································································································4
7.3.2 8255的工作方式说明··········································································································································6
7.4 8255在HY—6210中的应用·····································································································································7
7.5 编程举例·································································································································································7
八 应用注意事项 ·····················································································································································12
8.1 注意事项·······························································································································································122 HY 6210多功能定时/计数板
8.2 HY—6210可连接的端子板···································································································································13
九 I/O地址分配····························································································································································13
附录1 HY—6210测试软件使用说明···························································································································13
附录2 HY—6210驱动函数使用说明···························································································································18华远自动化系统有限公司 3
HY 6210多功能定时/计数器板
一 概述
HY 6210板是IBM PC XT/AT总线兼容的可编程定时/计数和数字量输入/输出板 该板可直接插入IBM
PC XT/AT总线兼容计算机的任一扩展槽中使用 实现脉冲量计数 定时控制或现场开关量状态监测及控制执行机
构工作等功能
HY 6210板上采用了一片8253定时/计数器和一片8255可编程数字量输入/输出芯片 为用户提供了三个可编
程16位定时/计数器和24路可编程数字量输入/输出
在该板上8253的定时/计数器1和定时/计数器2被连接成同步计数 输入时钟可选择板上时钟或外部时钟 定时
/计数器0可选择接板上时钟定时/计数 还可以选择与定时/计数器1级连使用 三个定时/计数器均可选择内部门控
或外部门控 定时/计数器的内部门控为8255的C口输出 板上8255的A口和B口均给用户作为16路数字量输入或输
出 8255的C口作为定时/计数器的内部门控和数字量输入/输出或中断申请允许控制
该板还提供了一路中断请求申请信号 可选择定时/计数器0的输出或用户数字量输入或8255的C口输出
HY 6210板的典型应用为数字量输入/输出 频率测量 马达控制信号发生器 事件计数等
二 性能及技术指标
2.1 性能
3路定时/计数器通道
24路可编程数字量输入/输出通道
1路中断请求信号通道
2.2 应用
事件及频率计数
周期及脉冲信号测量
可编程脉冲信号发生器
马达控制
频率发生器
开关量状态监测
2.3 技术指标
定时器/计数器部分
定时/计数器通道 3路
定时/计数器长度 16位
内部时钟频率 2MHz
外部时钟输入频率 0 ~ 2 MHz
定时/计数器输出脉冲频率 0.001Hz ~ 1MHz
占空比 0 ~ 100%
定时/计数器信号输入/输出电平特性
输入高电平 VIH 2.0V
输入高电平电流 I IH 20 A
输入低电平 VIL 0.8V
输入低电平电流 I IL 20 A4 HY 6210多功能定时/计数板
输出高电平 VOH 2.4V
输出高电平电流 IOH 400 A
输出低电平 VOL 0.4V
输出低电平电流 IOL 2.0mA
数字量部分
数字量输入/输出 24路 双向可编程
数字量输入/输出频率 0 ~ 1 MHz
中断请求信号 1路
中断请求信号有效电平 高 低电平可选
中断级别 IRQ2 ~ 7可选择
中断允许 软件控制
输入/输出信号及中断请求信号电平特性
输入高电平 VIH 2.0V
输入高电平电流 I IH 40 A
输入低电平 VIL 0.8V

您好！HY—6210多功能定时/计数板是一款专门设计用于控制和管理各种定时或计数任务的电子模块。它可能具备以下特点： 1. **定时功能**：用户可以设置时间段，让设备在指定时间后自动执行特定操作，比如开关电源、启动程序等。 2. **计数功能**：它可以累计计数器的增减，适用于需要追踪循环次数或者记录事件发生频率的应用场景。 3. **编程接口**：通常配备数字或模拟输入/输出端口，方便与其他电子设备进行连接和数据交换。 4. **显示界面**：可能带有LCD显示屏，以便实时查看设定的时间、计数值或工作状态。 5. **操作简单**：可能配有用户友好的菜单系统，通过按钮或软件配置来调整参数。 6. **尺寸小巧**：适合集成到各种小型设备或控制系统中。 为了获取更详细的信息，建议您查阅该产品的具体说明书，其中会包含详细的安装步骤、使用方法、参数列表以及任何注意事项。如果在阅读过程中遇到任何问题，欢迎随时向我提问，我会尽力帮助您。