MVI56-S3964R 3964R网络接口模块的协议模块

ProSoft MVI56-S3964R是一款作为西门子3964R网络接口模块的协议模块。该协议模块由ProSoft Technology制造，用于在任何ControlLogix处理器(如1756-L1, 1756-L1Mx, 1756-L55或1756-L6x)与具有西门子3964R通信能力的任何其他设备之间进行点对点通信。基本上，它使艾伦-布拉德利plc和西门子设备之间的通信成为可能，因为3964R协议是由西门子公司发明的。Prosoft MVI56-S3964R本质上是采用点对点协议，具有读写功能。它执行BCC校验和以确保传输的安全性。设备采用2个独立运行的RS-232或RS-422通信端口与设备通信。

该模块在ControlLogix机箱中占用1个槽位，兼容1756背板。它在5伏直流时消耗800毫安，在24伏直流时消耗3毫安。ControlLogix处理器将该模块识别为I/O模块，并允许其访问处理器内存，以实现快速可靠的数据传输。为了使数据传输在正确的轨道上，使用了阶梯逻辑。为了简化实现过程，在用户应用程序中使用Prosoft MVI56-S3964R协议模块提供示例阶梯程序。发送/接收的最大传输报文长度为512字节。通信活动通过led发出信号，也可以通过确认电报获得，因此总有一种方法可以提取有关数据传输质量的信息。Prosoft MVI56-S3964R包包括2根电缆，1个适配器和1张CD，以及协议模块本身。

MVI56-PDPMV1

The ProSoft MVI56-S3964R is a protocol module that acts as a Siemens 3964R Network Interface Module. This protocol module manufactured by ProSoft Technology serves to make point-to-point communication between any ControlLogix processor, like the 1756-L1, 1756-L1Mx, 1756-L55, or the 1756-L6x, and any other device with the Siemens 3964R communication capability. Basically, it enables communication between Allen-Bradley PLCs and Siemens devices because the 3964R protocol was invented by the Siemens Corporation. The Prosoft MVI56-S3964R uses a peer-to-peer protocol in essence, with reading and writing functions. It performs the BCC checksum to ensure the safety of the transfer. The device uses 2 RS-232 or RS-422 communication ports that operate independently to communicate with devices.

The module occupies 1 slot in ControlLogix chassis and it is 1756 backplane compatible. It consumes 800 mA at 5 Volts DC or 3 mA at 24 Volts DC. The ControlLogix processor recognizes the module as an I/O module and allows it to access the processor memory for the data transfer to be fast and reliable. To put data transfer on the right track, ladder logic is used. To make things easier in the implementation process, example ladder programs are delivered with the Prosoft MVI56-S3964R protocol module in the user applications. The maximum transfer packet that can be sent/received is 512 bytes. Communication activity is signaled through LEDs and it is also available through acknowledgment telegrams, so there is always a way to extract information about data transfer quality. The Prosoft MVI56-S3964R package includes 2 cables, 1 adapter, and 1 CD, along with the protocol module itself.