Phoenix ILC 191 ETH 2TX 2700976 Ethernet Controller
The Phoenix Contact ILC 191 ETH 2TX (ordering number 2700976) is an Inline Ethernet controller that functions as a programmable logic controller and communication gateway. It features an integrated 2‑port Ethernet switch (10/100 Mbps) and supports Modbus TCP, PROFINET IO, and HTTP protocols. The controller is used to connect Inline I/O modules to an Ethernet network, acting as a compact PLC for small to medium automation tasks.
Processor and Memory
The ILC 191 ETH is based on a 32-bit ARM9 processor at 200 MHz. Program memory: 2 MB flash, data memory: 8 MB RAM. Retentive memory: 128 KB (FRAM). The real-time clock (RTC) is battery backed (CR2032, 5 years). Scan time: 10 ms for 1000 instructions.
Ethernet Ports and Switching
Two RJ45 ports with auto-negotiation and auto-crossover (MDI/MDI-X). The integrated switch supports daisy‑chain (line) topology and device‑level ring (DLR) with recovery time < 50 ms. Ports are isolated (1500 Vrms) and have LED indicators for link/activity and speed (100 Mbps).
Inline Local Bus
The controller connects to up to 63 Inline I/O modules (digital, analog, temperature, and serial) via the local bus. Bus cycle time: 2 ms for 256 I/O points. The bus automatically addresses modules and provides diagnostic data. The controller supplies 24V DC sensor power (0.8A) to the bus.
Supported Protocols
Modbus TCP: Client and server (up to 16 simultaneous connections).
PROFINET IO: Controller or device (with GSDML file).
HTTP/HTTPS: Built-in web server for diagnostics and data visualization.
SNMP v1/v2c for network management.
FTP/FTPS for file transfer.
Programming Software
PC Worx (version 6.0 or later) or PC Worx Express provide IEC 61131-3 languages (LD, FBD, ST, IL, SFC). The controller supports online debugging and simulation. A USB device port (mini‑B) is available for programming and firmware updates.
Power and Environment
Supply voltage: 24V DC (19.2–30V). Power consumption: 4 W (controller only). Dimensions: 118 mm height x 66 mm width x 60 mm depth. Weight: 180 g. Mounting: DIN rail (35 mm). Operating temperature: -25°C to +60°C; storage: -40°C to +85°C. Humidity: 10% to 95% non-condensing. Protection class: IP20. Vibration: 5 g (10–150 Hz).
Diagnostics and LEDs
LEDs: PWR (green), RUN (green), BF (bus fault, red), SF (system fault, red), LINK1/2 (green/yellow). A 4‑digit diagnostic display (7-segment) shows IP address and error codes. The controller logs up to 250 events (time stamped).
Typical Applications
Used as a remote PLC for distributed I/O in water treatment, conveyor systems, and packaging machines. The 2‑port switch eliminates need for an external switch in line topologies.
Ordering and Documentation
Phoenix part number: 2700976 (ILC 191 ETH 2TX). The controller includes a 24V DC connector and a mini‑USB cable. Manual: Inline Controller ILC 191 ETH User Manual (108728_en_01). RoHS compliant.
