The TRICONEX 4119A, also cataloged as the 4119A Enhanced Intelligent Communication Module, operates as a dedicated hardware component for data exchange within Tricon 3000 Series Safety Instrumented System (SIS) networks.
| Parameter | Specification |
|---|---|
| Model | 4119A |
| Brand | Triconex (Schneider Electric) |
| Origin | USA |
| Weight | 1.5 to 2.0 kg net weight (4.00 kg shipping weight) |
| Dimensions | 177.8 mm x 101.6 mm x 228.6 mm |
| Operating Temp | 0 to +60 deg C |
| Storage Temp | -40 to +85 deg C |
| Power Consumption | 10 W typical @ 24 VDC via backplane |
| Serial Ports | 4 isolated ports supporting RS-232, RS-422, or RS-485 |
| Parallel Ports | 1 isolated Centronics parallel port |
| Port Isolation | 500 VDC galvanic isolation |
| Serial Data Rate | Up to 115.2 Kbps per port |
| Protocols Supported | TriStation, Modbus RTU, Modbus ASCII, Modbus TCP/IP, Peer-to-Peer, SNTP |
| Safety Certification | IEC 61508 SIL3, TÜV, CE, UL Class I Div 2, ATEX Zone 2 |
The module acts as an isolated gateway executing triple modular redundancy (TMR) bus transactions across the internal backplane while interfacing with non-safety DCS, SCADA, or peer safety platforms. The hardware isolates external communication networks from the primary safety loop via a 500 VDC galvanic isolation barrier deployed across all serial and parallel ports, preventing electrical faults or data packet corruption from inducing an illegal system state. The internal processor handles high-throughput Modbus and TriStation protocol mapping independently of the main safety processors, thereby guaranteeing that peer-to-peer or external monitoring traffic never compromises the execution of safety interlocks or fail-safe state execution times.
Q: Does an online hot-swap of the 4119A affect the process control loops or safety voting operations of the Tricon main processors?
A: An online hot-swap of this communication module does not interrupt the primary 2oo3 safety voting logic or the execution of safety loops by the main processors. The hardware architecture handles communication tasks as an asynchronous system, though the external data updates to the SCADA interface will pause until the replacement module initializes.
Q: How must the firmware and software configuration be managed when substituting an older revision module with a REV B module?
A: The firmware version embedded in the replacement hardware must match the existing baseline version of the Tricon main processors exactly. Prior to putting the unit online, use TriStation software to download the communication allocation matrix, port assignments, and Modbus registers to the new module memory space.
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