Three electrical standards
Each serial port can be wired as RS-232, RS-422 or RS-485 to match the selected external interface.
TRICONEXSafety and critical control systems
TRICON V10.X · Enhanced Intelligent Communication Module
SERIAL AND PARALLEL COMMUNICATION MODULE
Triconex 4119 Enhanced Intelligent Communication Module
Modbus, TriStation and printer interfaces on isolated ports
SECTION 01
Product Information
The Triconex 4119 is an Enhanced Intelligent Communication Module for Tricon v10.x or earlier systems. It provides four serial interfaces for Modbus or TriStation communication and one isolated Centronics parallel interface for a printer, allowing control-system data and print output to leave the controller on separate port types.
Each serial port on the 4119 can use RS-232, RS-422 or RS-485 and is isolated to 500 VDC. Modbus traffic can operate in RTU or ASCII mode, while address aliases in the control program connect Tricon variable names to the numeric references used by Modbus devices.
All four serial paths on the 4119 can operate concurrently, but their combined data rate must not exceed 57.6 Kbps. Front-panel transmit and receive indicators expose activity by port, while Pass, Fault and Active indicators report module-level condition.
SECTION 02
Technical Data
| Technical Item | 4119 |
|---|---|
| Brand | Triconex |
| Product Type | Enhanced Intelligent Communication Module |
| Compatible System | Tricon v10.x or earlier |
| Serial Ports | 4 |
| Serial Interfaces | RS-232, RS-422 or RS-485 |
| Serial Port Isolation | 500 VDC |
| Parallel Port | Centronics |
| Parallel Port Isolation | 500 VDC |
| Protocols | TriStation and Modbus |
| Modbus Modes | RTU and ASCII |
| Selectable Communication Speeds | 1200, 2400, 9600 or 19,200 baud |
| Aggregate Serial Data Rate | 57.6 Kbps maximum |
| Module Indicators | Pass, Fault, Active |
| Port Indicators | TX and RX per port |
| Logic Power | Less than 10 W |
| Parallel Port Count | 1 |
| Concurrent Serial Operation | All four serial ports |
| Maximum Listed Port Rate | 19,200 baud |
| Hot-Spare Function | Not available |
SECTION 03
Isolated Serial Communication Paths
The 4119 assigns Modbus and TriStation traffic to four independently addressed serial interfaces while keeping the printer on a separate parallel port.
Ground-fault separation
Serial and parallel ports carry 500 VDC isolation between the communication wiring and controller circuitry.
Concurrent port operation
All four serial ports can transfer data at the same time provided their total rate stays within 57.6 Kbps.
SECTION 04
Modbus Addressing and Port Activity
The 4119 converts control-program variable references into the numeric aliases used in Modbus messages and exposes traffic at the front panel.
Alias relationship
Each Tricon variable read or written by a Modbus device receives a numeric alias that identifies its message type and address.
RTU or ASCII framing
The module supports both Modbus transmission modes, allowing framing to be selected for the connected device.
Visible communication state
TX and RX indicators identify activity for each port, while Pass, Fault and Active LEDs show the module condition.
SECTION 05
Product Questions
How many serial ports does Triconex 4119 provide?
The 4119 provides four serial ports. It also has a separate Centronics parallel interface for printer output. Each port is uniquely addressed, so the port number and its configured protocol should be captured with the cable assignment.
Which electrical interfaces can Triconex 4119 serial ports use?
Each serial port supports RS-232, RS-422 or RS-485. The selected electrical standard must match the connected device and wiring. The 500 VDC isolation specification applies to the communication ports and separates their wiring from controller circuitry.
Can Triconex 4119 use both Modbus RTU and ASCII?
Yes. The module supports Modbus communication in RTU or ASCII mode, along with the listed Modbus functions. RTU or ASCII framing must match the connected Modbus device; support for both modes does not make the settings automatic.
What limits simultaneous traffic on Triconex 4119?
All four serial ports can operate concurrently, but their aggregate rate cannot exceed 57.6 Kbps. Individual baud settings therefore have to be considered together. For example, four simultaneous 19,200-baud assignments would exceed the stated aggregate limit.
Does Triconex 4119 support a hot-spare module?
The EICM does not provide a hot-spare feature. A faulty module can be replaced online, but this is not the same as an active standby pair. The replacement approach should therefore not be described as automatic redundancy or standby takeover.
What do the indicators on Triconex 4119 show?
Pass, Fault and Active indicate module state. Separate TX and RX lights show traffic on each communication port. A port LED without a healthy module state is not enough by itself to confirm complete communication operation.
SECTION 06
Customer Support
MOORE AUTOMATION
https://www.mvme.cn/Moore Automation support staff receive the complete product model, required quantity and destination information before preparing an enquiry record. Questions about a 4119 communication module are kept with the same record so port and protocol requirements remain visible during quotation follow-up.
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SECTION 07
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