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 printers

• 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 additional independent communications ports.

Product Specifications

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)

Each CM network port supports these protocols:

• TSAA (UDP/IP)

• TSAA with IP Multicast (UDP/IP)

• TriStation

• Peer-to-Peer (UDP/IP)

• Peer-to-Peer (DLC)

• Modbus Master or Slave (TCP)

• Triconex Time Synchronization via UDP/IP

• SNTP Triconex Time Synchronization

• JetDirect Network Printer Server DLC/LLC

NOTE

The Trident CM supports a maximum of four Modbus TCP ports.

Each CM Net1 network port supports Triconex Time Synchronization via DLC.

Logic Power for CM

Logic power is supplied by the MP Baseplate.

Product Specifications

Common Features for I/O Modules and Baseplates

The Digital Input (DI) Module and Baseplate shown below serve as examples for all of the Trident I/O modules and baseplates, whose appearance is similar. The following pages provide detailed specifications for all of the I/O modules and baseplates.

Each I/O module occupies one of two slots on the baseplate that constitute an I/O set. The left module occupies the slot below the “L” label on the base plate and the right module occupies the slot below the “R” label. At any time, the status of either the left or right module can be active or hot-spare depending on which module is in control.

All types of I/O modules support a hotspare module. Each module is mechanically keyed to prevent improper installation in a configured baseplate.

Each I/O Baseplate includes one I/O Interconnect Assembly, one Slot Cover, and one Terminal Cover.

For most types of I/O baseplates, the wiring for field devices is connected directly to terminals on the baseplate, which are compression terminals that are compatible with 24 to 12 (0.2 mm2 to 3.3 mm2) AWG wiring.

The maximum operating temperature for all types of I/O modules is 158° F (70° C) ambient.
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