HIMA H6200A 发射器电路 PDF资料
1.产 品 资 料 介 绍：
中文资料：
HIMA H6200A 发射器电路功能说明
HIMA H6200A 是一款用于工业自动化安全系统中的模拟输入模块，其发射器电路主要用于接收来自现场仪表（如变送器）的模拟信号，典型为 4–20 mA 电流信号。该电路具有以下关键功能：
1. 变送器供电功能
H6200A 提供内部隔离的直流电源，为外部 2 线制变送器供电。电压通常为 24V，电流受控，以保证供电稳定性和安全性。
2. 模拟信号采集
电流信号（如 4–20 mA）通过限流和采样电路转换为电压信号，供后续 A/D 转换处理。H6200A 会对输入信号进行线性化处理，转换为控制系统可识别的数据格式。
3. 电气隔离
通过隔离放大器或光电耦合器，实现信号通道、电源与系统主板之间的电气隔离，有效防止接地电位差、过压等干扰传入控制系统。
4. 故障监测
具备以下故障检测功能：
信号开路检测（例如变送器断线）
信号短路保护
输入电压/电流异常报警
5. 系统集成能力
H6200A 可作为 HIMatrix 或 HIMax 系统的一部分，通过系统后端的安全处理器完成信号的诊断、逻辑运算和数据上传。具备冗余设计能力，可满足 SIL3 等级的应用需求。
英文资料：
Function Description of HIMA H6200A Transmitter Circuit
HIMA H6200A is an analog input module used in industrial automation safety systems. Its transmitter circuit is mainly used to receive analog signals from field instruments (such as transmitters), typically 4-20 mA current signals. This circuit has the following key functions:
1. Power supply function of transmitter
H6200A provides internally isolated DC power supply to power external 2-wire transmitters. The voltage is usually 24V, and the current is controlled to ensure power supply stability and safety.
2. Analog signal acquisition
The current signal (such as 4-20 mA) is converted into a voltage signal through current limiting and sampling circuits for subsequent A/D conversion processing. H6200A will linearize the input signal and convert it into a data format recognizable by the control system.
3. Electrical isolation
By isolating amplifiers or optocouplers, electrical isolation is achieved between the signal channel, power supply, and system motherboard, effectively preventing interference such as ground potential difference and overvoltage from entering the control system.
4. Fault monitoring
Equipped with the following fault detection functions:
Signal open circuit detection (such as transmitter disconnection)
Signal short circuit protection
Abnormal input voltage/current alarm
5. System integration capability
H6200A can be used as a part of the HIMatrix or HIMax system, completing signal diagnosis, logical operations, and data uploading through the security processor in the system backend. Capable of redundant design to meet the application requirements of SIL3 level.
2.产 品 展 示
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