Key Parameters 1. Power Supply: Supply Voltage: 24V DC (Operational range typically 19.2 - 28.8V DC). Power Consumption: Approximately 6W. 2. Inputs (I): Number & Type: 12 digital inputs. Input Voltage: Compatible with the 24V DC system. A "1" signal is typically recognized at > 13V DC. Configuration: All inputs are software-configurable. Several can be used as counters (up to 1 kHz) or for frequency measurement. 3. Outputs (Q): Number & Type: 8 relay outputs (as denoted by the -R in the model number). Contact Rating: 5 A at 250V AC / 5 A at 30V DC (resistive load). Ratings for inductive, motor, or lamp loads require derating as per the datasheet. Isolation: Relay contacts are electrically isolated from the control circuit and from each other. 4. Programming & Display: Programming Methods: EASY-SOFT PC Software (Primary Method): Graphical programming via drag-and-drop of function blocks (logic gates, timers, counters, etc.). On-Device Programming: Using the integrated rotary switch, buttons, and LCD display for basic setup and monitoring. Display: 2-line, 16-character backlit LCD. Shows I/O status, parameter values, and simple messages. Memory: Non-volatile memory for storing the user program. 5. Core Functions (via Software): Timers: On-delay, off-delay, pulse, one-shot, cyclic. Counters: Up counter, down counter. Logic Operations: Full set of Boolean logic (AND, OR, NOT, XOR, etc.). Value Comparators: For comparing analog values from optional expansion modules. Basic Arithmetic: Addition, subtraction. Note: This model does NOT have a built-in real-time clock. Time-based switching requires using the internal timers, which reset on power loss. 6. Expansion Capability: This model supports the connection of EASY System Expansion I/O modules. Typical Modules: Additional digital input/output modules (EASY-IO) or analog input modules (EASY-400-ANALOG). Limitation: The EASY500 series typically supports a limited number of expansion modules (e.g., 1 or 2) and does not support high-level communication buses like PROFIBUS. 7. Mechanical & Environmental: Mounting: Standard 35 mm top-hat DIN rail (EN 60715). Dimensions (W x H x D): Approximately 90 mm x 110 mm x 58 mm. Protection Degree: IP20 (for mounting inside a control cabinet). Operating Temperature: -25°C to +55°C. Storage Temperature: -40°C to +85°C. 8. Safety & Approvals: Electrical Safety: UL 508 Listed, cULus (Industrial Control Equipment). EMC: CE compliant. Marine Approvals: GL (Germanischer Lloyd), DNV. RoHS: Compliant. 9. Typical Applications: Basic machine automation (conveyors, packaging, sorting). Control of pumps, fans, and compressors. Door and gate control systems. Simple lighting control (non-time-scheduled). Replacement of small relay panels in electrical cabinets.