1746-IC16

Allen Bradley | SLC-500 | In Stock Ships Today! AB SLC-500

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1746-IC16

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  • Manufacturer: Allen Bradley
  • Description: 16 Pt. AB Input Mod. 30-55 VDC Sink
  • Weight: 2 lbs :: ≈ 1 kgs
  • Warranty: 1 Years
  • Product Revisions Available:
  • Other Available Revisions of the 1746-IC16 : A, B, C, D, E, F,

Product Manual Excerpt

Sinking and sourcing are terms used to describe a current signal flow relationship between field input and output devices in a control system and their power supply. • Field devices connected to the po sitive side (+V) of the field power supply are sourcing field devices. • Field devices connected to the negative side (dc Common) of the field power supply are called sinking field devices. To maintain electrical compatib ility between field devices and the programmable controller system, this definition is extended to the input/output circuits on the discrete I/O modules. • Sourcing I/O circuits supply (source) current to sinking field devices. • Sinking I/O circuits receive (sink) current from sourcing field devices. Europe: dc sinking input and sourcing output module circuits are the commonly used options. Wiring Your I/O Modules Contact Output Circuits — ac or dc Relays can be used for either ac or dc output circuits and accommodate either sinking or sourcing field devices. These capabilities are a result of the ou tput switch being a mechanical contact closure, not sensitive to cu rrent flow direction and capable of accommodating a broad range of voltages. This high degree of applicatio n flexibility makes contact output modules very popular and useful in control environments with a broad mix of electrical I/O circuit requirements. Solid-State dc I/O Circuits The design of dc field devices typica lly requires that th ey be used in a specific sinking or sourcing circuit depending on the internal circuitry of the device. DC input and output field circuits are commonly used with field devices that have some form of internal solid state circuitry that need a dc signal voltage to function. Sourcing Device with Sinki ng Input Module Circuit The field device is on the positive side of the power supply between the supply and the input terminal. When the field device is activated, it sources current to the input circuit. Sinking Device with Sourcing Input Module Circuit The field device is on the negative side of the power supply between the supply and the input terminal. When the field device is activated, it sinks current from the input circuit. Sinking Device with Sourcing Output Module Circuit The field device is on the negative side of the power supply between the supply and the output terminal. When the output is activated, it sources current to the field device. Sourcing Device with Sinking Output Module Circuit The field device is on the positive side of the power supply between the supply and the output terminal. When the output is activated, it sinks current from the field device.

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What is New Surplus?

These “New Surplus” units are a great cost saving alternative. This product is in the original manufacturer’s packaging with all sub-assemblies and documentation. Comes with a PLC Distribution Factory & Supply 3-year warranty.


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What is Surplus New?

Surplus New - New unused and includes all sub-assemblies and documentation. Product may ship in manufacturer or PLC Distribution Factory & Supply packaging and includes a PLC Distribution Factory & Supply 3 Year Warranty.


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What is Reconditioned?

Reconditioned products from PLC Distribution Factory & Supply are a cost-effective alternative to new and obsoleted PLC products. Every part is reconditioned down to the circuit board level. All parts are thoroughly inspected and hand-cleaned before being functionally tested in a fully configured system.


Our Reconditioned Products always come with a PLC Distribution Factory & Supply 2-Year Warranty.

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110% PRICE MATCH GUARANTEE


We stand behind our prices with a 110% price match guarantee. If you buy a part from us and, within seven days of purchase, find that part advertised on an authorized distributor's website for less, simply contact us and give us a link to the lower advertised price and we'll refund you 110% of the difference between your purchase price and the advertised lower price. The part must be in-stock for immediate shipment and be in similar condition. All pricing must be displayed without signing in.

Repair Service


3-5 Days for most repairs. 24 hour repair upon request at no extra charge. If part is unrepairable, we will exchange with a working unit or return unrepaired.