Examples of LCM100 Power Line ModemApplications

Heavy Industry

Tramco, a Boeing Company subcontractor, is using Data-Linc LCM100 Power Line Carrier Modems to transmit multiplexed contact closure data for hangar door lockout system over 480VAC power lines across rolling wheels (sparking source).

Materials Handling— Crane Control

Numerous companies are using Data-Linc LCM100 power line modems on existing power lines or MDL500s on dedicated tracks to control stacker cranes over sliding contacts, thereby eliminating the need for cable and reel or control pendant.Armstrong World Industries

Oil and Gas/Petrochemical— Temperature Controllers

To communicate with temperature controllers on a rotating die from the factory floor computer, Mobile uses LCM100 power line modems over 240VAC lines supplying power to the rotating die through slip rings.

Oil and Gas/Petrochemical— Well Heads

Full duplex 9600 baud data communications between Modicon Compact 984 PLCs at several well heads and the control trailer using Data-Linc MDL500, DOVE (Data Over Voice Encoder) and LCM100 Power Line Modems with PLI500 Power Line Isolators to transmit data over existing spare pair and superimposed on in-place 480 VAC wiring. The multi-drop connection between DOVEs and LCMs utilizes Data-Linc's AE485 Auto Enable technology (compatible with RS 485) to allow half duplex operation without the need for enable lines or signals.

Power/Utility— Pump Control

To multiplex and transmit 4-20 mA and contact closure data for pump control over 480VAC power lines, a plant is using D-D1000 RTU Multiplexer and LCM100-HV Power Line Carrier Modem. (Please note that the LLM1100 has replaced the LLM1000, and the DDAA has replaced the D-D1000.)