This central processing unit serves as the core controller for Modicon M100 PLC systems. It executes user programs and manages all I/O operations efficiently. The unit supports both ladder logic and structured text programming languages. Its compact design fits perfectly into space-constrained control cabinets.
Processor Architecture and Memory Configuration
The CPU features a high-performance 16-bit microcontroller for real-time control. It stores application programs and system parameters in onboard flash memory. The processor handles digital and analog I/O scanning simultaneously. A dedicated communication coprocessor manages network traffic independently.
| Parameter | Specification |
|---|---|
| Model | 110CPU31102 |
| Processor Type | 16-bit MCU, 40 MHz |
| Program Memory | 256 KB flash |
| Data Memory | 32 KB RAM |
| Retentive Memory | 8 KB EEPROM |
| Execution Speed | 0.2 µs per bit instruction |
| Max Digital I/O Points | 1024 local, 2048 remote |
| Max Analog Channels | 128 |
| Max Expansion Modules | 7 |
| Built-in Communication | 1 x RS-232C, 1 x RS-485 |
| Supported Protocols | Modbus RTU, ASCII |
| Programming Languages | Ladder, ST, IL, FBD |
| Power Supply | 24 V DC ±10%, 250 mA |
| Power Consumption | 6.0 W maximum |
| Real-Time Clock | Integrated with battery backup |
Physical Dimensions and DIN-Rail Mounting
This central processing unit measures 100 mm in height, 70 mm in width, and 60 mm in depth. Its robust enclosure weighs approximately 0.35 kg. You can mount the unit on a standard 35 mm DIN rail. An integrated locking clip secures the module firmly in place.
Communication and Programming Interfaces
The 110CPU31102 includes two serial ports for versatile connectivity. One RS-232C port connects to programming terminals and HMI panels. The RS-485 port supports multi-drop networking with up to 31 devices. The unit also provides a USB port for firmware updates.
I/O Scanning and Processing Capabilities
The processor scans digital inputs and updates outputs within 2 milliseconds. It handles analog conversions with 12-bit resolution accuracy. The CPU manages high-speed counting on two dedicated channels. Interrupt inputs respond to external events within 50 microseconds.
Data Integrity and System Reliability
A lithium battery maintains the real-time clock for approximately 5 years. The module includes automatic memory checksum verification during startup. A hardware watchdog timer resets the processor during software faults. The unit also monitors its internal temperature continuously.
Expansion and System Integration
You can connect up to seven expansion modules to increase I/O capacity. The CPU supports both local and remote I/O configurations. It automatically detects connected modules during system startup. The unit works seamlessly with SoMachine Basic programming software.
Details
| Weight | 0.25 kg |
|---|---|
| Dimensions | 130 × 100 × 20 mm |
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