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Product Overview The Allen-Bradley 1747-PIC is a PC Interface Converter designed specifically for the SLC 500 programmable controller family. As a legacy communication bridge, the 1747-PIC enables a standard personal computer to connect to SLC 500 processors that utilize the DH-485 (Data Highway 485) network protocol. This converter translates RS-232 signals from a computer’s…
Product Overview The Foxboro 033-59-20-99G (also referenced as 033-059-20-99G) is a specialized PCLF (Process Control Link Fieldbus) interface board developed by Foxboro—now part of Honeywell Process Solutions—and serves as a core communications component within the legendary Foxboro I/A Series Distributed Control System (DCS). While it does not directly process temperature or pressure signals, the…
Application Scenarios In a chemical batch processing plant, a process engineer struggled with ground loops and electrical noise corrupting analog signals sent to variable frequency drives controlling agitator speeds. The existing non-isolated output cards required external signal isolators for each channel, adding cost and panel space while introducing additional failure points. By installing 1746sc-INO4i modules…
Application Scenarios: A specialty chemicals plant monitors reactor temperature, jacket pressure, feed flow and level on a single skid — four loops, four transmitters, and a cabinet that also houses three variable frequency drives. The existing SLC 500 analog input card worked adequately at commissioning, but as the VFDs were added, the readings began…
Application Scenarios A large automotive stamping plant operated multiple press lines controlled by SLC 5/05 processors. The existing standard input modules frequently experienced channel failures when a single field device shorted, causing the entire module to fault and taking multiple press interlocks offline simultaneously. Maintenance engineers replaced the standard modules with 1746sc-IA8I isolated input…
Application Scenarios: A cement plant ran a 13-slot 1746-A13 chassis on a SLC 5/04, and over fifteen years the rack had filled up incrementally: dense relay output cards, several analog input modules, a thermocouple card, an Ethernet communication adapter, and a high-speed counter. Nobody recalculated the backplane budget after each addition, because each individual…
Application Scenarios In a chemical processing facility, a critical reactor vessel required continuous monitoring of both pressure and temperature to maintain safe operating conditions. The existing standard analog input modules lacked the diagnostic capability to detect sensor degradation or wiring faults before they escalated into hazardous situations. Production engineers needed a solution that could…
Product Overview The Allen-Bradley 1746-OX8 is an eight-point, individually isolated relay output module designed for the SLC 500 programmable controller platform. As a member of the Bulletin 1746 digital I/O family, the 1746-OX8 provides eight Form A (normally open, SPST) electromechanical relay contacts, each electrically independent of every other point. That isolation is the…
Technical Specifications Parameter Name Parameter Value Product Model 1746-OW16 (1746-OW16/C) Manufacturer Allen-Bradley (Rockwell Automation) Product Type Digital Contact Output Module (Relay Output) Series SLC 500 Output Channels 16 normally open (N.O.) relay contacts Output Groups 2 groups, 8 points per common Operating Voltage 5-265V AC / 5-125V DC Backplane Current (5V DC) 0.170 A…
Product Overview The Allen-Bradley 1746-OV8 is an eight-channel DC digital output module from the SLC 500 family of Rockwell Automation, built to switch 24V DC field devices directly from a single slot of an SLC 500 chassis. As a current-sinking output module, the Allen-Bradley 1746-OV8 completes the load circuit to the DC common, which…