| Terminal | Signal | Description | |----------|---------------|----------------------------| | 1 | 24V+ | Power supply positive | | 2 | 0V | Power supply negative | | 3 | DI1 | Digital input 1 | | ... | ... | ... | | 10 | DO1 | Digital output 1 | | 11-12 | A / B | RS485 (Modbus) | Use shielded twisted-pair cable for RS485. Connect shield to functional ground at one end only. 4. Configuration (DIP Switches & Software) | Switch SW1 | Function | |------------|-------------------------------| | 1 | Modbus address bit 0 (LSB) | | 2 | Modbus address bit 1 | | 3 | Modbus address bit 2 | | 4 | Baud rate 9600 / 19200 | | 5 | Parity: even / none | | 6 | Termination resistor enable |
Since the exact original manual is not available, this follows standard technical documentation format for model numbers like KKG21A-C1. 1. Product Overview The KKG21A-C1 is a compact control module designed for industrial automation systems. It features high reliability, flexible I/O configuration, and compatibility with standard fieldbus protocols. kkg21a-c1 manual