
Omron CJ1W-PRT21 | PROFIBUS-DP Slave Unit
Omron CJ1W-PRT21 | PROFIBUS-DP Slave Module for Seamless Fieldbus Integration Overview The CJ1W-PRT21 is a PROFIBUS-DP slave unit that allows Omron CJ-series PLCs to communicate with master devices on PROFIBUS-DP networks. Designed for high-speed and reliable communication, it supports up to 100 input and 100 output words, and is easily configured using a standard GSD file. Key Features Protocol Support: PROFIBUS-DP (slave functionality) Data Capacity: Up to 100 input and 100 output words (combined limit: 180 words) Flexible Mapping: Data can be linked to any CJ PLC memory area Diagnostics: Built-in LEDs and status functions for quick troubleshooting Mounting: DIN rail; can be installed on CPU or expansion racks Configuration: GSD file-based setup for easy integration Technical Specifications Model: CJ1W-PRT21 Network Type: PROFIBUS-DP slave Data Size: Max. 100 input / 100 output words (180 combined) Power Consumption: 400 mA (5 VDC) Interface: 9-pin D-sub conne