CIM3211 Triconex Tricon Communication Model
CIM3211 Triconex Tricon Communication Model
The Communication Module (CM) is a one-to-one interface to the MPs. The Trident v2 CM enables communication with:
• External host computers
• Distributed control systems (DCS)
• Open networks
• Network pr inte rs
• Other Trident v2 systems
• Tricon version 9–10 systems
A single Trident controller can support up to two CMs on one CM Baseplate. Each CM operates independently and supports three RS-232 or RS-485 serial ports and two Ethernet ports per CM.
Two CMs can provide redundant communication connections or addi tional independent communications ports



Communication Capabilities Each CM provides the following communication capabilities:
• Serial ports • Network ports
• Multiple protocol support Serial Ports Each CM provides three optically isolated RS-232 or RS-485 serial ports which are user-configurable for Modbus point-to-point or multi-point (network) connections.
Transmission rates up to 115 kilobits per second per port can be selected. Network Ports Each CM provides two network ports which are configured as follows: One 10-megabit Ethernet port, with the following connectors:
• 10BaseT
• Attachment unit interface (AUI) for a 10-megabit media adapter unit (MAU) One 100-megabit Ethernet port, with the following connectors:
• 100BaseTX
• Media independent interface (MII) for a 100-megabit MAU Media adapter units may be used in place of the 10/100 BaseT RJ-45 twisted-pair connections to convert the CM network ports to other Ethernet media types or to extend network distances.
Supported Protocols
Each CM serial port supports these protocols:
• Modbus master (RTU)
• Modbus slave (ASCII or RTU)





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