中文版
Description
4352AN TRICON COMMUNICATION MODULELike the I/O modules, the TCM has three separate communication busses and three separate communication bus interfaces, one for each of the three 3008N MP modules. Unlike the I/O modules, however, the three communication bus interfaces are merged into a single microprocessor. That microprocessor votes on the communications messages from the three 3008N MP modules and transfers only one of them to an attached device or external system. If two-way communications are enabled, messages received from the attached device are triplicated and provided to the three 3008N MP modules. The communication paths to external systems have CRCs, handshaking, and other protocol-based features. These features are supported in hardware and FW. FW provides core functionality common to all the communication modules with additional coding to support the specific communication protocol. The three communications modules of the V9 system have been replaced by one communication module, the 4352AN TCM Fiber Optic module. The TCM allows the Tricon V10 to communicate with other Tricon platforms and with external hosts over fiber optic networks. The TCM provides two fiber optic port connectors which support peer-to-peer, time synchronization, and open networking to external systems. In addition, the TCM contains four serial ports allowing the Tricon V10 to communicate with Modbus master and slaves. Each serial port is uniquely addressed and supports the Modbus protocol.
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