MTL BPHM64 MTL4840 HART®连接系统

MTL4840 HART®连接系统在现场智能设备和PC上运行的HART®仪器管理软件之间提供了一个简单的接口。
该系统基于16通道模块化，提供了一个紧凑，易于配置和扩展的系统。使用标准的RS485串行链路，多达7936个单独的HART®设备可以连接到单个工作站。
为了获得最佳解决方案，可以从一系列通用和IS终端板中进行选择。为了获得最大的灵活性，BPHM64 HART®背板包含一个MTL4841通信模块和多达四个MTL4842接口模块。通用HART®连接单元和IS背板也可用，每个都配有连接到BPHM64 HART®背板的接口电缆。
MTL4841和MTL4842模块也可以位于HMU16终端板上，用于通用应用，或位于BPMH16 / BPMH16U / BPSH16 / BPSH16-32背板上，用于IS隔离要求。din导轨安装HCU16和HCU16AOHART®连接到16个通用现场仪器，同时保持通道到通道的隔离。电阻器调节选项与所有I/O卡兼容。它允许通过连接发射机电源，输入信号和公共。
HCU16AO单元包括HART®滤波器，用于与HART®信号不兼容的I/O卡。BPMH16/BPMH16U/BPSH16/BPSH16-32背板配有MTL4840 HART®模块，可连接16或32个IS现场仪器。可用于BPMH16U的适配器卡易于集成到I/O卡，用户可以选择din导轨安装选项。
根据需要，可以在连接单元和背板中包含许多功能。通道间隔离;HART®信号调理所需的电阻器;HART®滤波器用于模拟系统，其中输出信号干扰HART®数据或因HART®信号的存在而变得不稳定。定制背板和连接单元可提供直接连接DCS I/O电缆，取代标准终端板。
MTL HART多路复用器被BASEEFA认证为IEC61508的安全相关子系统。请参阅本目录的SR系列接口部分。

MTL BPHM64

The MTL4840 HART® connection system provides a simple interface between smart devices in the field and HART® instrument management software run on a PC.
The system is based on 16-channel modularity to provide a compact, easily configurable and expandable system. Using a standard RS485 serial link, up to 7936 individual HART® devices can be connected to a single workstation.
For the optimum solution, choose from a range of general purpose and IS termination boards. For maximum flexibility the BPHM64 HART® backplane locates an MTL4841 communications module and up to four MTL4842 interface modules. General purpose HART® connection units and IS backplanes are also available, each fitted with an interface cable for connection to the BPHM64 HART® backplane.
MTL4841 and MTL4842 modules can also be located on HMU16 termination boards for general purpose applications or on BPMH16 / BPMH16U / BPSH16 / BPSH16-32 backplanes for IS isolator requirements. The DIN-rail mounting HCU16 and HCU16AOHART® connect to 16 general purpose field instruments while maintaining channel to channel isolation. Resistor conditioning options are compatible with all I/O cards. It allows pass-through connections for transmitter power supply, input signal and common.
The HCU16AO unit includes HART® filters for I/O cards incompatible with HART® signals. BPMH16/BPMH16U/BPSH16/BPSH16-32 backplanes with MTL4840 HART® modules fitted, connect either 16 or 32 IS field instruments. Adapter cards are available for the BPMH16U for easy integration to I/O cards and users have a choice of a DIN-rail mounting option.
Numerous features may be included in the connection units and backplanes, as required. Channel to channel isolation; resistors where required for HART® signal conditioning; and HART® filters for analogue systems where the output signal interferes with HART® data or becomes unstable with the presence of the HART® signal. Customised backplanes and connection units are available to provide direct connection from DCS I/O cables, replacing the standard termination board.
MTL HART multiplexers are certified by BASEEFA as a safety related sub-system to IEC61508. See the SR Series Interfaces section of this catalogue.