This Product Selection Guide contains information to help select products in the Controllers - Programmable (PLC, PAC) category on DigiKey.com
Programmable logic controllers are flexible automation control devices that generate one or more output signals in response to one or more input signals, as desired by a user to implement some control algorithm. Varying in complexity from simple devices capable of performing a few simple logic and timing functions to advanced devices capable of orchestrating the motions of complex moving equipment such as material handling robots, it is common for such systems to be implemented as modular, extensible systems that are adaptable to an application’s specific needs.
SelectionCharacteristics
Number of Inputs and Type: Indicates the number of signal input circuits with which a device is equipped, and whether those inputs process applied signals as continuous (analog) or discrete (digital) values.
Number of Outputs and Type: For devices having built-in outputs, indicates the number of such outputs and the manner of their implementation.
Expandable: Describes ability to expand device funtionality through addition of modular hardware extensions.
Voltage - Supply: Typically represented by a range, this indicates the low and high voltage limits which one can expect standard operation. Voltages outside this range may damage the device and other system components.
Display Type: Describes the user interface for indication.
Number of Characters Per Row: For products incorporating a segmented display, the display width in terms of number of alphanumeric characters that can be shown on each row of the display.
Communications: Enumerates communication interface(s)/protocol(s) implemented by a controller.
Memory Size: The amount of memory available in the device for program storage.
Mounting Type: Indicates how the device is attached.
Features: These are different capabilities or properties of the device such as battery backup or a cable.
Software: Identifies the recommended software suite for programming or monitoring of a device.
ProductExamples
| MFR PART # | CP1L-L14DR-A |
|---|---|
| DIGI-KEY PART # | Z3162-ND |
| MANUFACTURER | Omron Automation and Safety |
| DESCRIPTION | Programmable Logic Controller (PLC) Chassis Mount, DIN Rail 100 ~ 240VAC |
| DATASHEET | Click Here |
| MFR PART # | IS.MDUINO.58+ |
|---|---|
| DIGI-KEY PART # | 2198-IS.MDUINO.58±ND |
| MANUFACTURER | Industrial Shields |
| DESCRIPTION | Programmable Logic Controller (PLC) DIN Rail 12 ~ 24VDC |
| DATASHEET | Click Here |
| MFR PART # | FC6A-C24K1CE |
|---|---|
| DIGI-KEY PART # | 1885-1229-ND |
| MANUFACTURER | IDEC |
| DESCRIPTION | Programmable Logic Controller (PLC) DIN Rail 24VDC |
| DATASHEET | Click Here |
| MFR PART # | DVP60ES200T |
|---|---|
| DIGI-KEY PART # | DVP60ES200T-ND |
| MANUFACTURER | Delta Electronics/Industrial Automation |
| DESCRIPTION | Programmable Logic Controller (PLC) Chassis Mount, DIN Rail 100 ~ 240VAC |
| DATASHEET | Click Here |
MediaLinks
Articles
The Role of PLCs in Industrial Control and Test and Measurement
Blogs
What Is a PLC?