MVI71-MCM Modbus主/从网络接口模块 可编程逻辑控制器系列

Allen-Bradley MVI71-MCM模块是Modbus主/从网络接口模块。它属于可编程逻辑控制器系列，是一个单槽1771背板兼容模块。该单元被认为是一个可以访问处理器存储器的输入/输出模块。这简化了处理器和模块之间的数据连接。MVI71-MCM模块还具有梯形逻辑协议，支持从模块到处理器的无缝数据传输。MVI71-MCM模块需要配备兼容电源的Allen-Bradley PLC处理器。为了获得性能，它至少需要64 MB的内存。但是，制造商建议使用256 MB的RAM来实现功能。此外，确保它至少有400 MB的可用硬盘空间，并使用256色VGA图形指示器。

在安装MVI71-MCM模块的过程中，请遵循所有安全说明。不遵守安全规定可能导致设备损坏，甚至造成严重伤害。MVI71-MCM模块只能处理冷交换。因此，在将模块插入机箱或从机箱中移除之前，应断开电源。为了有效运行，应该有最少量的数据传输到模块。MVI71-MCM模块具有1或2个停止位，数据大小为7或8位。MVI71-MCM模块的波特率为110至115千波特，支持浮点数据移动。它具有一个命令列表，每个主端口最多可包含100个命令。

The Allen-Bradley MVI71-MCM module is the master/slave Modbus network interface module. It belongs to the programmable Logic Controller family and is a single slot 1771 backplane compatible module. The unit is considered an input/output module with access to processor memory. This simplifies the data connection between the processor and the module. The MVI71-MCM module also features a ladder logic protocol that enables seamless data transfer from the module to the processor. The MVI71-MCM module requires a power-compatible Allen-Bradley PLC processor. For best performance, it needs at least 64 MB of memory. However, the manufacturer recommends using 256 MB of RAM for optimal function. Also, make sure it has at least 400 MB of available hard disk space and uses a 256-color VGA graphics indicator.

Follow all safety instructions when installing the MVI71-MCM module. Failure to comply with safety regulations may result in equipment damage or even serious injury. The MVI71-MCM module processes cold switching only. Therefore, disconnect the power supply before inserting or removing the module from the chassis. In order to operate efficiently, there should be a minimum amount of data transferred to the module. The MVI71-MCM module has 1 or 2 stop bits and the data size is 7 or 8 bits. The MVI71-MCM module has a baud rate of 110 to 115 kilobord and supports floating point data movement. It has a list of commands that can contain up to 100 commands per master port.

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