GB Smart Card-Type PLC
Compact 24 VDC PLCs with dual Ethernet ports, RS485 communication, expandable KM I/O modules, and KB signal boards for flexible machine automation and space-limited control cabinets.
- 16 DI / 12 DO compact PLC platform
- 2 external Ethernet ports with integrated switch function
- 1 × RS485 communication interface
- XP models: 4 AI / 2 AO built in
- Up to 16 KM expansion modules
- One KB signal-board slot
Quick Selection Guide
Choose KR28 for a relay-output PLC with 16 DI and 12 relay outputs.
Choose KT28 when transistor outputs are needed for fast switching or pulse output.
Choose KR28XP or KT28XP for 4 AI and 2 AO without adding an analog module.
Add KM modules for digital, analog, or temperature I/O, then use a KB signal board for extra interfaces.
PLC CPU Models
All Card-Type PLC CPUs use a 24 VDC supply and provide one RS485 interface, two Ethernet ports, expansion-module support, one signal-board position, and microSD card support. Click a model name to view its product page.
| Model | Digital I/O | Built-in Analog I/O | RS485 | Ethernet | PLC Configuration | SD Card | Power | Dimensions (mm) |
|---|---|---|---|---|---|---|---|---|
| KR28 | 16 DI / 12 Relay DO | — | 1 × RS485 | 2 × Ethernet | SR30 | Supported | 24 VDC | 84 × 115 × 100 mm |
| KT28 | 16 DI / 12 Transistor DO | — | 1 × RS485 | 2 × Ethernet | ST30 | Supported | 24 VDC | 84 × 115 × 100 mm |
| KR28XP | 16 DI / 12 Relay DO | 4 AI / 2 AO | 1 × RS485 | 2 × Ethernet | SR30 | Supported | 24 VDC | 84 × 115 × 100 mm |
| KT28XP | 16 DI / 12 Transistor DO | 4 AI / 2 AO | 1 × RS485 | 2 × Ethernet | ST30 | Supported | 24 VDC | 84 × 115 × 100 mm |
Platform Advantages
A space-saving PLC and I/O system for compact OEM control cabinets and retrofit applications.
Connect the PLC, HMI, and programming computer conveniently through the two external network ports.
Choose only the required digital, analog, PT100, NTC, or thermocouple channels for your machine.
Use the KB slot for an additional RS485 interface, I/O points, analog channels, or temperature inputs.
KM Expansion Modules
The KM series expands the Card-Type PLC with digital, analog, and temperature I/O. Maximum expansion capacity is 16 KM modules. Click a model name for product details.
Digital Expansion Modules
| Model | Description | PLC Configuration | Power Consumption | Dimensions (W × H × D) |
|---|---|---|---|---|
| KM DE08 | 8 Digital Inputs | EM DE08 | 1.5 W | 16 × 115 × 85 |
| KM DE16 | 16 Digital Inputs | EM DE16 | 2.3 W | 16 × 115 × 85 |
| KM DT08 | 8 Transistor Outputs | EM DT08 | 3 W | 16 × 115 × 85 |
| KM QT16 | 16 Transistor Outputs | EM QT16 | 4.5 W | 16 × 115 × 85 |
| KM DR08 | 8 Relay Outputs | EM DR08 | 4.5 W | 16 × 115 × 85 |
| KM DT16 | 8 Digital Inputs / 8 Transistor Outputs | EM DT16 | 5 W | 16 × 115 × 85 |
| KM DT32 | 16 Digital Inputs / 16 Transistor Outputs | EM DT32 | 1.5 W | 30 × 115 × 85 |
| KM DR16 | 8 Digital Inputs / 8 Relay Outputs | EM DR16 | 2.5 W | 16 × 115 × 85 |
| KM DR32 | 16 Digital Inputs / 16 Relay Outputs | EM DR32 | 2 W | 30 × 115 × 85 |
Analog Expansion Modules
| Model | Description | PLC Configuration | Power Consumption | Dimensions (W × H × D) |
|---|---|---|---|---|
| KM AE04 | 4 Analog Inputs, voltage or current | EM AE04 | 1.5 W | 16 × 115 × 85 |
| KM AE08 | 8 Analog Inputs, voltage or current | EM AE08 | 2 W | 16 × 115 × 85 |
| KM AE16 | 16 Analog Inputs, voltage or current | EM DP01 | 2.5 W | 30 × 115 × 85 |
| KM AQ04 | 4 Analog Outputs, voltage or current | EM AQ04 | 2.1 W | 16 × 115 × 85 |
| KM AQ08 | 8 Analog Outputs, voltage or current | EM DP01 | 3 W | 30 × 115 × 85 |
| KM AM06 | 4 Analog Inputs / 2 Analog Outputs | EM AM06 | 2 W | 16 × 115 × 85 |
| KM AM12 | 8 Analog Inputs / 4 Analog Outputs | EM DP01 | 3 W | 30 × 115 × 85 |
| KM AM16 | 8 Analog Inputs / 8 Analog Outputs | EM DP01 | 3.5 W | 30 × 115 × 85 |
Temperature Expansion Modules
| Model | Description | PLC Configuration | Power Consumption | Dimensions (W × H × D) |
|---|---|---|---|---|
| KM AR04 | 4-Channel RTD Temperature Input | EM AR04 | 1.5 W | 16 × 115 × 85 |
| KM AR08 | 8-Channel PT100 Temperature Input | EM AE08 | 2 W | 16 × 115 × 85 |
| KM AT04 | 4-Channel Thermocouple Temperature Input | EM AT04 | 1.5 W | 16 × 115 × 85 |
| KM AT08 | 8-Channel K-Type Thermocouple Temperature Input | EM AE08 | 2 W | 16 × 115 × 85 |
| KM AN04 | 4-Channel NTC Temperature Input | EM AE04 | 1.5 W | 16 × 115 × 85 |
| KM AN08 | 8-Channel NTC Temperature Input | EM AE08 | 2 W | 16 × 115 × 85 |
| KM AN16 | 16-Channel NTC Temperature Input | EM DP01 | 3 W | 30 × 115 × 85 |
| KM EN88 | 8 Analog Inputs / 8-Channel NTC Input | EM DP01 | 3 W | 30 × 115 × 85 |
| KM EN4C | 4 Analog Inputs / 12-Channel NTC Input | EM DP01 | 3 W | 30 × 115 × 85 |
KB Signal Boards
KB signal boards install in the dedicated signal-board slot to add communication, digital I/O, analog I/O, or temperature channels without changing the main KM module layout.
Communication Signal Board
| Model | Description | PLC Configuration | Power Consumption |
|---|---|---|---|
| KB CM02 | 1 RS485 Communication Port | SB CM01 | 1 W |
Digital Signal Boards
| Model | Description | PLC Configuration | Power Consumption |
|---|---|---|---|
| KB DE04 | 4 Digital Inputs | SB CM01 | 0.8 W |
| KB QT04 | 4 Transistor Outputs | SB CM01 | 0.8 W |
| KB QR04 | 4 Relay Outputs | SB CM01 | 1 W |
| KB DT04 | 2 Digital Inputs / 2 Transistor Outputs | SB DT04 | 1 W |
Analog Signal Boards
| Model | Description | PLC Configuration | Power Consumption |
|---|---|---|---|
| KB AE01-1AI | 1 Analog Input, voltage or current | SB CM01 | 1.5 W |
| KB AE02-2AI | 2 Analog Inputs, voltage or current | SB CM01 | 1.5 W |
| KB AE04-4AI | 4 Analog Inputs, voltage or current | SB CM01 | 2 W |
| KB AE06-6AI | 6 Analog Inputs, voltage or current | SB CM01 | 2 W |
| KB AQ01-1AQ | 1 Analog Output, voltage or current | SB CM01 | 2 W |
| KB AQ02-2AQ | 2 Analog Outputs, voltage or current | SB CM01 | 2 W |
| KB AQ04-4AQ | 4 Analog Outputs, voltage or current | SB CM01 | 3 W |
| KB AM03-2AI1AQ | 2 Analog Inputs / 1 Analog Output | SB CM01 | 1 W |
| KB AM04-2AI2AQ | 2 Analog Inputs / 2 Analog Outputs | SB CM01 | 1.5 W |
| KB AM05-4AI1AQ | 4 Analog Inputs / 1 Analog Output | SB CM01 | 1.5 W |
| KB AM06-4AI2AQ | 4 Analog Inputs / 2 Analog Outputs | SB CM01 | 2 W |
Temperature Signal Boards
| Model | Description | PLC Configuration | Power Consumption |
|---|---|---|---|
| KB AR02-2PT100 | 2-Channel PT100 Temperature Input | SB CM01 | 2 W |
| KB AR04-4PT100 | 4-Channel PT100 Temperature Input, 2-wire only | SB CM01 | 2.5 W |
| KB AN04-4NTC | 4-Channel NTC Temperature Input, 10K / 3950 | SB CM01 | 2 W |
| KB AN06-6NTC | 6-Channel NTC Temperature Input, 10K / 3950 | SB CM01 | 2.5 W |
| KB AT04-4TC | 4-Channel K-Type Thermocouple Temperature Input | SB CM01 | 2 W |
Typical Applications
Conveyors, sensors, actuators, filling, labeling, and small assembly stations.
Heating, drying, cooling, ovens, and process monitoring with RTD, NTC, or thermocouple modules.
Sorting, feeder, batching, and small conveyor systems with scalable distributed I/O needs.
Upgrade older control panels with compact Ethernet and RS485 PLC hardware plus the required I/O.
Product Reference Images
Use these images as a reference for product layout, terminal arrangement, wiring, and module installation.
FAQ
KR models use relay outputs for general switching loads. KT models use transistor outputs for high-speed switching and pulse-output applications.
KR28XP and KT28XP include 4 analog inputs and 2 analog outputs.
The Card-Type PLC platform supports up to 16 KM expansion modules.
Yes. KM modules expand the main I/O system, while the KB signal board adds one compact communication or signal interface in its dedicated slot.
Need Help Selecting a Configuration?
Send your required DI/DO quantity, analog signal type, temperature channel requirement, and preferred output type. We will help identify a suitable GB Smart Card-Type PLC, KM modules, and KB signal board.
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