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PLC Controllers

Programmable Logic Controllers (PLCs) are rugged industrial computers used to automate machines and processes in factories, plants, and other industrial environments. PLCs take inputs (from sensors, switches and buttons), processes logic (based on a programmed set of rules), and controls outputs (motors, valves, lights, alarms). Common applications for PLCs include assembly lines, robotic arms, conveyor systems, packaging machines, and sorting systems.

Programmable Logic Controllers (PLCs) are in stock at Mouser and available for same day shipping. Mouser is an authorized distributor for many Programmable Logic Controller manufacturers including Arduino, IDEC, Industrial Shields, Omron, Opto 22, Phoenix Contact, Schneider Electric, Siemens & more.

Please view our large selection of programmable logic controllers (PLCs) below.

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Part #

PLC Controllers Analog input, 8 channels, temperature/RTD or resistor

GRV-IRTD-8
Opto 22
1: $1,014.49
1In Stock

Mfr. Part No.
GRV-IRTD-8

Mouser Part No
94-GRV-IRTD-8

Opto 22

PLC Controllers Analog input, 8 channels, temperature/RTD or resistor

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Datasheet

1In Stock

$1,014.49

$931.25

Min.: 1
Mult.: 1

Analog RTD Input Module

EPIC

- 0 C

+ 70 C

PLC Controllers Analog input, multiple ranges, 1.25 to 160 V, isolated, 12 channels

GRV-IVI-12
Opto 22
1: $1,181.24
1In Stock

Mfr. Part No.
GRV-IVI-12

Mouser Part No
94-GRV-IVI-12

Opto 22

PLC Controllers Analog input, multiple ranges, 1.25 to 160 V, isolated, 12 channels

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Datasheet

1In Stock

$1,181.24

Min.: 1
Mult.: 1

Analog Voltage Input Module

EPIC

- 0 C

+ 70 C

PLC Controllers Analog output, 8 channels, voltage or current, chassis-powered loop

GRV-OVMALC-8
Opto 22
1: $830.79
1In Stock

Mfr. Part No.
GRV-OVMALC-8

Mouser Part No
94-GRV-OVMALC-8

Opto 22

PLC Controllers Analog output, 8 channels, voltage or current, chassis-powered loop

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Datasheet

1In Stock

$830.79

$737.50

Min.: 1
Mult.: 1

Analog Output Module

EPIC

- 20 C

+ 70 C

PLC Controllers groov RIO: 8 multifunction channels, 2 form C relays, expanded memory, Ignition 8

GRV-R7-MM2001-10
Opto 22
1: $1,271.91
1In Stock
4Expected 16/07/2026

Mfr. Part No.
GRV-R7-MM2001-10

Mouser Part No
94-GRV-R7-MM2001-10

Opto 22

PLC Controllers groov RIO: 8 multifunction channels, 2 form C relays, expanded memory, Ignition 8

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Datasheet

1In Stock

4Expected 16/07/2026

$1,271.91

Quote

Min.: 1
Mult.: 1

8 Multifunction Signal Module

RIO

- 0 C

+ 70 C

PLC Controllers SNAP 2-Ch -20mA to +20mA Analog Current Input Module

SNAP-AIMA
Opto 22
1: $320.39
1In Stock
3Expected 13/07/2026

Mfr. Part No.
SNAP-AIMA

Mouser Part No
94-SNAP-AIMA

Opto 22

PLC Controllers SNAP 2-Ch -20mA to +20mA Analog Current Input Module

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Datasheet

1In Stock

3Expected 13/07/2026

$320.39

$286.58

Min.: 1
Mult.: 1

Analog Current Input Module

SNAP

- 20 C

+ 70 C

PLC Controllers SNAP 4-Ch -20mA to +20mA Analog Current Input Module

SNAP-AIMA-4
Opto 22
1: $410.82
6On Order

Mfr. Part No.
SNAP-AIMA-4

Mouser Part No
94-SNAP-AIMA-4

Opto 22

PLC Controllers SNAP 4-Ch -20mA to +20mA Analog Current Input Module

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Datasheet

6On Order

$410.82

$359.76

Min.: 1
Mult.: 1

Analog Current Input Module

SNAP

- 20 C

+ 70 C

PLC Controllers SNAP Isolated 2-Ch Analog Frequency Input, 2 Hz to 500 kHz or 20 Hz to 500 kHz

SNAP-AIRATE-HFi
Opto 22
1: $320.76
2In Stock

Mfr. Part No.
SNAP-AIRATE-HFi

Mouser Part No
94-SNAP-AIRATE-HFI

Opto 22

PLC Controllers SNAP Isolated 2-Ch Analog Frequency Input, 2 Hz to 500 kHz or 20 Hz to 500 kHz

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Datasheet

2In Stock

$320.76

$319.57

Min.: 1
Mult.: 1

Analog Frequency Input Module

SNAP

- 20 C

+ 70 C

PLC Controllers SNAP 2-Ch Type E, J, K Thermocouple or -150mV to +150mV Analog Input Module

SNAP-AITM
Opto 22
1: $318.36
3In Stock

Mfr. Part No.
SNAP-AITM

Mouser Part No
94-SNAP-AITM

Opto 22

PLC Controllers SNAP 2-Ch Type E, J, K Thermocouple or -150mV to +150mV Analog Input Module

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Datasheet

3In Stock

$318.36

$286.58

Min.: 1
Mult.: 1

Analog Thermocouple Input Module

SNAP

- 0 C

+ 70 C

PLC Controllers SNAP 2-Ch Type B,C,D,G,N,T,R, or S Thermocouple Analog Input Module

SNAP-AITM-2
Opto 22
1: $336.12
3In Stock

Mfr. Part No.
SNAP-AITM-2

Mouser Part No
94-SNAP-AITM-2

Opto 22

PLC Controllers SNAP 2-Ch Type B,C,D,G,N,T,R, or S Thermocouple Analog Input Module

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Datasheet

3In Stock

$336.12

$315.41

$313.77

Min.: 1
Mult.: 1

Analog Thermocouple Input Module

SNAP

- 0 C

+ 70 C

PLC Controllers SNAP 4-Ch -10VDC to +10VDC Analog Input Module

SNAP-AIV-4
Opto 22
1: $401.25
2In Stock
3Expected 09/07/2026

Mfr. Part No.
SNAP-AIV-4

Mouser Part No
94-SNAP-AIV-4

Opto 22

PLC Controllers SNAP 4-Ch -10VDC to +10VDC Analog Input Module

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Datasheet

2In Stock

3Expected 09/07/2026

$401.25

$360.79

Min.: 1
Mult.: 1

Analog Voltage Input Module

SNAP

- 20 C

+ 70 C

PLC Controllers Isolated SNAP 2-Ch 4-20 mA Current Loop Analog Output Module, with Loop Sourcing

SNAP-AOA-23-iSRC
Opto 22
1: $622.03
Non-Stocked Lead-Time 4 Weeks

Mfr. Part No.
SNAP-AOA-23-iSRC

Mouser Part No
94-SNAP-AOA-23-ISRC

Opto 22

PLC Controllers Isolated SNAP 2-Ch 4-20 mA Current Loop Analog Output Module, with Loop Sourcing

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Datasheet

Non-Stocked Lead-Time 4 Weeks

$622.03

$562.49

Min.: 1
Mult.: 1

Analog Current Loop Output Module

SNAP

- 20 C

+ 70 C

PLC Controllers SNAP 8-ch analog multifunction output, voltage or current

SNAP-AOVA-8
Opto 22
1: $882.15
1In Stock

Mfr. Part No.
SNAP-AOVA-8

Mouser Part No
94-SNAP-AOVA-8

Opto 22

PLC Controllers SNAP 8-ch analog multifunction output, voltage or current

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Datasheet

1In Stock

$882.15

$787.49

Min.: 1
Mult.: 1

Analog Multifunction Output Module

SNAP

- 20 C

+ 70 C

PLC Controllers SNAP Isolated 16-pt Digital (Discrete) Input Module, 10-32 VDC

SNAP-IDC-16
Opto 22
1: $300.97
2In Stock

Mfr. Part No.
SNAP-IDC-16

Mouser Part No
94-SNAP-IDC-16

Opto 22

PLC Controllers SNAP Isolated 16-pt Digital (Discrete) Input Module, 10-32 VDC

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Datasheet

2In Stock

$300.97

$268.66

Min.: 1
Mult.: 1

Digital Input Module

SNAP

- 20 C

+ 70 C

PLC Controllers SNAP 4-Ch 10-32 VAC/VDC Digital (Discrete) Input Module

SNAP-IDC5
Opto 22
1: $91.77
16In Stock
30Expected 17/07/2026

Mfr. Part No.
SNAP-IDC5

Mouser Part No
94-SNAP-IDC5

Opto 22

PLC Controllers SNAP 4-Ch 10-32 VAC/VDC Digital (Discrete) Input Module

Learn More

Datasheet

16In Stock

30Expected 17/07/2026

$91.77

$87.87

$79.08

$75.29

$71.93

Min.: 1
Mult.: 1

Digital Input Module

SNAP

- 20 C

+ 70 C

PLC Controllers SNAP 4-Ch High-Speed 2.5 - 16VDC Digital (Discrete) Input Module

SNAP-IDC5-FAST
Opto 22
1: $81.30
12In Stock

Mfr. Part No.
SNAP-IDC5-FAST

Mouser Part No
94-SNAP-IDC5-FAST

Opto 22

PLC Controllers SNAP 4-Ch High-Speed 2.5 - 16VDC Digital (Discrete) Input Module

Learn More

Datasheet

12In Stock

$81.30

$77.98

$72.71

$65.46

View

Min.: 1
Mult.: 1

Digital Input Module

SNAP

- 20 C

+ 70 C

PLC Controllers SNAP 4-Ch High-Speed 18-32 VDC Digital (Discrete) Input Module

SNAP-IDC5-FAST-A
Opto 22
1: $82.23
2In Stock
36Expected 09/07/2026

Mfr. Part No.
SNAP-IDC5-FAST-A

Mouser Part No
94-SNAP-IDC5-FAST-A

Opto 22

PLC Controllers SNAP 4-Ch High-Speed 18-32 VDC Digital (Discrete) Input Module

Learn More

Datasheet

2In Stock

36Expected 09/07/2026

$82.23

$75.95

$75.91

$75.87

$66.30

Min.: 1
Mult.: 1

Digital Input Module

SNAP

- 20 C

+ 70 C

PLC Controllers SNAP 2-Axis Quadrature Position Input Module

SNAP-IDC5Q
Opto 22
1: $313.81
1In Stock

Mfr. Part No.
SNAP-IDC5Q

Mouser Part No
94-SNAP-IDC5Q

Opto 22

PLC Controllers SNAP 2-Axis Quadrature Position Input Module

Learn More

Datasheet

1In Stock

$313.81

$268.66

Min.: 1
Mult.: 1

Digital Input Module

SNAP

- 20 C

+ 70 C

PLC Controllers SNAP 4-Ch Isolated 12-250 VAC Digital (Discrete) Output Module

SNAP-OAC5-I
Opto 22
1: $121.09
1In Stock

Mfr. Part No.
SNAP-OAC5-I

Mouser Part No
94-SNAP-OAC5-I

Opto 22

PLC Controllers SNAP 4-Ch Isolated 12-250 VAC Digital (Discrete) Output Module

Learn More

Datasheet

1In Stock

$121.09

$104.51

$104.50

$91.25

Min.: 1
Mult.: 1

Digital Output Module

SNAP

- 20 C

+ 70 C

PLC Controllers SNAP 32-channel Digital (Discrete) Output Module, 5-60 VDC Load Sinking

SNAP-ODC-32-SNK
Opto 22
1: $421.77
1In Stock
4Expected 13/07/2026

Mfr. Part No.
SNAP-ODC-32-SNK

Mouser Part No
94-SNAP-ODC-32-SNK

Opto 22

PLC Controllers SNAP 32-channel Digital (Discrete) Output Module, 5-60 VDC Load Sinking

Learn More

Datasheet

1In Stock

4Expected 13/07/2026

$421.77

$395.00

Min.: 1
Mult.: 1

Digital Output Module

SNAP

- 20 C

+ 70 C

PLC Controllers SNAP 4-Ch Isolated 5-60 VDC Digital (Discrete) Output Module

SNAP-ODC5-I
Opto 22
1: $107.48
3In Stock

Mfr. Part No.
SNAP-ODC5-I

Mouser Part No
94-SNAP-ODC5-I

Opto 22

PLC Controllers SNAP 4-Ch Isolated 5-60 VDC Digital (Discrete) Output Module

Learn More

Datasheet

3In Stock

$107.48

$96.95

View

Min.: 1
Mult.: 1

Digital Output Module

SNAP

- 20 C

+ 70 C

PLC Controllers SNAP 4-Ch 5-60 VDC Digital (Discrete) Output Module, Load Sourcing

SNAP-ODC5SRC
Opto 22
1: $106.80
12In Stock

Mfr. Part No.
SNAP-ODC5SRC

Mouser Part No
94-SNAP-ODC5SRC

Opto 22

PLC Controllers SNAP 4-Ch 5-60 VDC Digital (Discrete) Output Module, Load Sourcing

Learn More

Datasheet

12In Stock

$106.80

$94.31

$91.66

View

Min.: 1
Mult.: 1

Digital Output Module

SNAP

- 20 C

+ 70 C

PLC Controllers LOGO DM8 24 EXPANSION MODULE,

6ED10551CB000BA2
Siemens
1: $147.13
3In Stock
3Expected 24/07/2026

Mfr. Part No.
6ED10551CB000BA2

Mouser Part No
982-6ED10551CB000BA2

Siemens

PLC Controllers LOGO DM8 24 EXPANSION MODULE,

Learn More

Datasheet

3In Stock

3Expected 24/07/2026

$147.13

$131.08

$127.70

$122.05

View

Min.: 1
Mult.: 1

Expansion Module

4 Input

4 Output

DIN Rail Mount

28.8 VDC

20.4 VDC

Digital

No Display

LOGO!

IP20

0 C

+ 55 C

35.5 mm x 90 mm x 58 mm

PLC Controllers LOGO DM8 230R, EXPANSON MODULE

6ED10551FB000BA2
Siemens
1: $158.91
10In Stock

Mfr. Part No.
6ED10551FB000BA2

Mouser Part No
982-6ED10551FB000BA2

Siemens

PLC Controllers LOGO DM8 230R, EXPANSON MODULE

Learn More

Datasheet

10In Stock

$158.91

$147.95

$137.28

$132.05

Min.: 1
Mult.: 1

Expansion Module

4 Input

4 Output

DIN Rail Mount

253 VAC/253 VDC

115 VAC/115 VDC

Digital

Relay

No Display

LOGO!

IP20

0 C

+ 55 C

35.5 mm x 90 mm x 58 mm

PLC Controllers LOGO DM16 230R, EXP. MODULE,

6ED10551FB100BA2
Siemens
1: $246.47
5In Stock

Mfr. Part No.
6ED10551FB100BA2

Mouser Part No
982-6ED10551FB100BA2

Siemens

PLC Controllers LOGO DM16 230R, EXP. MODULE,

Learn More

Datasheet

5In Stock

$246.47

$223.86

$214.82

$211.34

View

Min.: 1
Mult.: 1

Expansion Module

8 Input

8 Output

DIN Rail Mount

253 VAC/253 VDC

115 VAC/115 VDC

Digital

Relay

No Display

LOGO!

IP20

0 C

+ 55 C

71.5 mm x 90 mm x 58 mm

PLC Controllers LOGO DM8 12/24R, EXP. MODULE

6ED10551MB000BA2
Siemens
1: $158.49
5In Stock

Mfr. Part No.
6ED10551MB000BA2

Mouser Part No
982-6ED10551MB000BA2

Siemens

PLC Controllers LOGO DM8 12/24R, EXP. MODULE

Learn More

Datasheet

5In Stock

$158.49

$144.52

$137.28

$132.05

Min.: 1
Mult.: 1

Expansion Module

4 Input

4 Output

DIN Rail Mount

28.8 VDC

10.8 VDC

Digital

Relay

No Display

LOGO!

IP20

0 C

+ 55 C

35.5 mm x 90 mm x 58 mm

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4 Analog Input Module
8 Multifunction Signal Module
1-Phase AC
1-Phase AC/DC
3-Phase AC
AC Digital Output Module
AC Input Module
AC/DC Input Module
AS-Interface Master
AT and T Cellular Carrier Wireless Controller
Accessory Kit
Analog Current Input Module
Analog Current Loop Output Module
Analog Frequency Input Module
Analog I/O Module
Analog Input Module
Analog Input and RTD Module
Analog Multifunction Output Module
Analog Ouput Interface Module
Analog Output Module

1 Input
2 Input
3 Input
4 Input
5 Input
6 Input
7 Input
8 Input
9 Input
10 Input
11 Input
12 Input
13 Input
14 Input
16 Input
17 Input
18 Input
19 Input
20 Input
21 Input

0 Output
1 Output
2 Output
3 Output
4 Output
5 Output
6 Output
7 Output
8 Output
9 Output
10 Output
11 Output
12 Output
14 Output
16 Output
17 Output
19 Output
22 Output
24 Output
25 Output

3.3 V
5 V, 30 V
5 VDC
5.2 V
10 V
12 VDC, 24 VDC
20.8 V
24 V
24 VAC
24 VAC, 24 VDC
24 VAC/24 VDC
24 VDC
24 VDC, 240 VAC
25.4 V
25.4 VDC
26.4 V
26.4 VAC, 28.8 VDC
26.4 VAC. 28.8 VDC
28 V
28 VDC

0 V, 11 V
- 10 V
5 V
5 VDC
8 V
9 V
9 VDC
10 V
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10.8 V
10.8 VDC
11.4 V
11.4 VDC
12 V
12 VAC/12 VDC
12 VDC
12 VDC, 24 VDC
19.2 V
19.2 VDC
20 VDC

2 Output
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Analog, Digital
Analog, Digital, PWM
Analog, Digital, PWM, Relay
Analog, Digital, Relay
Analog, NMOS
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Current, Voltage
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Digital
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Digital, PWM, Relay
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CAN
CAN, Ethernet, RS-485, USB
Digital
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I2C, RS-485
I2C, SPI
RS-232, RS-485
RS-232C, USB
RS-422
RS-485
RS-485, USB

10 SmartAXIS Touch
20 I/Os
21
21 I/Os
42
42 I/Os
58
58 I/Os
400 Series
112073
16RDA I/Os
19R
19R I/Os
38AR
38AR I/Os
38R
38R I/Os
50RRA
50RRA I/Os
53ARR

25.2 mm x 88 mm
25.2 mm x 88 mm x 42 mm
35.5 mm x 90 mm x 58 mm
36 mm x 90 mm x 53 mm
36 mm x 90 mm x 58 mm
36 mm x 90 mm x 61.1 mm
40 mm x 125 mm x 120 mm
50 mm x 109 mm x 81 mm
54 mm x 90 mm x 53 mm
60.4 mm x 90 mm x 60.6 mm
61.1 mm x 36 mm x 90 mm
61.1 mm x 72 mm x 90 mm
70 mm x 110 mm x 90 mm
70 mm x 160 mm x 90 mm
70 mm x 23.5 mm x 90 mm
70 mm x 60 mm x 110 mm
70 mm x 62 mm x 70 mm
70 mm x 70 mm x 90 mm
70 mm x 95 mm x 90 mm
71 mm x 80 mm x 62 mm