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The Schneider Electric HMISCU8B5 is a Harmony SCU HMI controller that combines a 5.7-inch color touchscreen with programmable control functions. It is intended for compact machines and simple process-control systems where an operator interface and embedded controller are needed in one device.
Unlike the HMISCU8A5 digital-I/O model, the HMISCU8B5 combines discrete I/O with analog measurement and output capabilities. This makes it suitable for applications that need to process switch and sensor signals while also monitoring variables such as temperature or other supported analog inputs. Examples include packaging machinery, material-handling equipment and compact process systems.
The controller operates from a 24 V DC supply and includes Ethernet, USB, serial and CANopen communication interfaces. Operators can use the touchscreen to view process values, machine states and alarms, while the controller executes the configured application logic. Its I/O assignments, control program and HMI screens are developed using compatible Schneider Electric engineering software.
| Parameter | Specification |
|---|---|
| Manufacturer | Schneider Electric |
| Model | HMISCU8B5 |
| Product Series | Harmony SCU |
| Product Type | Small Touch HMI Controller |
| Display Size | 5.7 inch |
| Display Type | Backlit LED Color TFT LCD |
| Display Resolution | 320 × 240 pixels (QVGA) |
| Touchscreen Type | Analog resistive touch |
| Display Colors | 65,000 |
| Rated Supply Voltage | 24 V DC |
| Permitted Supply Voltage | 20.4–28.8 V DC |
| Digital Inputs | 8 total, including 2 high-speed inputs |
| Digital Outputs | 8 total, including 2 pulse outputs |
| Analog Inputs | 4, including supported temperature-input functions |
| Analog Outputs | 2 |
| Communication Interfaces | Ethernet, USB Type A, USB Mini-B, RS-232C/RS-485 serial link and CANopen |
| Application Memory | 128 MB Flash EPROM |
| Programming Software | SoMachine; compatibility depends on software version and project requirements |
| Mounting Method | Panel mounting through a 22 mm hole |
| Dimensions | 129.4 × 163 × 76.22 mm |
| Weight | 0.803 kg |
The HMISCU8B5 combines operator interaction with programmable control. Digital inputs receive signals from switches and discrete sensors, while analog inputs acquire supported process measurements. The controller executes the application program and updates its outputs and touchscreen according to the configured logic.
For example, a compact process machine may use digital inputs to detect equipment states, analog inputs to monitor a process variable, and digital or analog outputs to control compatible devices. Operators can monitor values and alarms on the touchscreen and adjust permitted settings without using a separate HMI and PLC.
The high-speed input and pulse-output functions support specific counting and pulse-based control tasks. Ethernet, serial and CANopen interfaces allow data exchange with compatible devices. Actual signal ranges, I/O behavior and communication mappings depend on the selected configuration and connected equipment.
The HMISCU8B5 functions as both the local operator interface and embedded controller. It acquires field signals, executes programmed logic, updates the touchscreen and communicates with compatible devices through its available interfaces.
| System Component | Function | Relationship to the HMISCU8B5 |
|---|---|---|
| HMISCU8B5 HMI Controller | Executes control logic and provides the operator interface | Central HMI and control unit |
| Digital Sensors | Detect position, presence or machine state | Supply signals to digital inputs |
| Analog Sensors | Measure supported process variables | Connect to configured analog input channels |
| Temperature Sensors | Provide supported temperature measurements | Use the appropriate configured temperature-input channels |
| Digital Actuators | Operate compatible valves, relays or other loads | Controlled through digital outputs within their ratings |
| Analog-Controlled Devices | Receive analog reference signals | Connect to configured analog outputs |
| High-Speed Sensors | Generate pulses for counting or event detection | Use supported high-speed input functions |
| Ethernet Network | Connects compatible devices for data exchange | Uses the Ethernet interface |
| CANopen Devices | Exchange control and status data | Connect through the CANopen interface |
| Serial Devices | Communicate using supported serial settings | Connect through the serial interface |
| 24 V DC Power Supply | Supplies operating power | Powers the controller and its integrated electronics |
| Application | Typical Control Requirement | Role of the HMISCU8B5 |
|---|---|---|
| Packaging Machinery | Cycle sequencing, process monitoring and operator settings | Combines local HMI operation with mixed digital and analog control |
| Material Handling | Discrete sensor coordination and process-value monitoring | Processes field signals and displays operating information |
| Compact Process Equipment | Analog measurement alongside discrete control | Acquires supported analog signals and executes programmed logic |
| Food and Beverage Machinery | Machine-state monitoring and process measurements | Provides operator interaction and configured I/O functions |
| Pharmaceutical Equipment | Process-value monitoring and machine sequencing | Displays configured values and manages compatible control logic |
| Pumping Systems | Start/stop control and analog feedback | Combines discrete control with supported analog measurement |
| Temperature-Controlled Equipment | Temperature measurement and analog output commands | Supports configured temperature-related control applications |
| Machine Retrofit Projects | Consolidation of separate HMI and controller functions | Combines functions where I/O and communication requirements match |
| Component | Function | Relationship to the HMISCU8B5 |
|---|---|---|
| Schneider HMISCU8A5 | Harmony SCU controller with a 5.7-inch display and digital I/O | Same display size with a different I/O configuration |
| Schneider HMISCU6B5 | Harmony SCU controller with a 3.5-inch display and mixed I/O | Smaller-display model in the same mixed-I/O family |
| Schneider HMISCU6A5 | Harmony SCU controller with a 3.5-inch display and digital I/O | Smaller-display digital-I/O variant |
| Schneider HMISBC | Harmony SCU controller rear module for analog-I/O models | Replacement rear module for the corresponding compatible modular configuration |
| Schneider HMIS85 | Harmony SCU 5.7-inch screen module | Screen replacement module for the supported modular configuration |
| 24 V DC Power Supply | Supplies controller operating power | Provides the required DC input |
| Analog Sensors | Measure supported process variables | Supply analog signals to the controller |
| Temperature Sensors | Measure temperature | Connect to supported temperature-input channels |
| Digital Input Devices | Detect machine conditions | Provide discrete signals to the controller |
| Analog-Controlled Devices | Receive analog control signals | Use configured analog outputs where supported |
| Model | Product Type | Relationship | Selection Consideration |
|---|---|---|---|
| Schneider HMISCU8B5 | Harmony SCU Small Touch HMI Controller | Main product | 5.7-inch touchscreen with mixed digital and analog I/O |
| Schneider HMISCU8A5 | Harmony SCU Small Touch HMI Controller | Same-display variant | Select for applications using the digital-I/O configuration |
| Schneider HMISCU6B5 | Harmony SCU Small Touch HMI Controller | Smaller-display mixed-I/O variant | Choose when a 3.5-inch display is sufficient |
| Schneider HMISCU6A5 | Harmony SCU Small Touch HMI Controller | Smaller-display digital-I/O variant | Select when analog I/O is not required |
| Schneider HMISBC | Harmony SCU Controller Rear Module | Modular system component | Verify compatibility with the intended screen module |
| Schneider HMIS85 | Harmony SCU 5.7-inch Screen Module | Modular screen component | Used in the corresponding supported modular configuration |
| Schneider HMIS65 | Harmony SCU 3.5-inch Screen Module | Alternative screen component | Use with the corresponding compatible modular controller |
Both models have a 5.7-inch Harmony SCU touchscreen. The HMISCU8B5 includes analog input and output functions in addition to digital I/O, while the HMISCU8A5 uses a digital-I/O configuration. The appropriate model depends on the field signals and control functions required.
The controller supports analog measurement and temperature-input functions, along with analog outputs. The supported signal types and ranges depend on the input or output function and its configuration, so the wiring and channel settings must match the connected device.
The controller includes both CANopen and Ethernet interfaces. Whether both can be used for a particular application depends on the required network arrangement, supported protocols and application configuration.
Confirm whether the replacement is the HMIS85 screen module or the HMISBC rear module, and ensure it matches the intended analog-I/O controller configuration. The screen and rear module must form a supported combination for the required controller functions.