A-B Discrete Input and Output Modules

Features and Benefits

Select I/O modules to exactly match your application. 

Combinationmodules allow you to have inputs and outputs in a single slot for efficient use of your chassis space.

Expand the I/O capacity of your fixed controller system. 

Two discrete I/O modules can be added to the fixed controller’s 2-slot expansion

chassis increasing the flexibility of the system.

All relay contacts are Silver Cadmium with Gold overlay. 

Gold plating resists oxidation and tarnishing resulting from non-use.

Silver Cadmium acts as an excellent conductor.

High-density 32-Point DC I/O and fast response DC inputs are available.

These modules allow you to apply the SLC 500 processors in a broader spectrum of control applications.

LEDs indicate the status of each I/O point. 

Assisting you in troubleshooting, LEDs illuminate when the proper signal is received

at an input terminal, or when the processor applies power to an output terminal.

Terminal identification diagrams on each module. 

Terminal identification diagrams are located on each module making terminal

identification easier.

Digital and field circuits are optically isolated. 

All modules feature isolation between digital and field circuits, resulting in increased

noise immunity and limited damage to your system due to an

electrical malfunction of the field wiring.

Self-lifting field-wire pressure plates cut installation time. 

Wiring terminals have self-lifting pressure plates to secure two #14 AWG

field wires.

Removable terminal blocks help ease the wiring task.

Removable terminal blocks allow you to replace the module without rewiring it

(not available on all modules).

Removable terminal blocks are color coded for quick identification.

A matching color band is also provided on the front of the module to

assist in matching the terminal block to the module.

Barrier-type terminal blocks provided on all modules. 

Each terminal block features a barrier on three sides of each terminal to help

prevent accidental shorting of field wiring.

Self-locking tabs secure the module in the chassis.

No tools are necessary to install or remove a module from the chassis. To install

a module, you slide it into the chassis until it latches in place.