Manufacturer: SIEMENS Model: 6ES7321-7RD00-0AB0 Product Type: Digital Input Module Number of Channels: 4 Input Voltage: 24VDC Standard Compatibility: Namur/DIN19234 Diagnostic Function: Support Certification: PTB Passed Size: 13.20x14.70 x5.10 cm Weight: 0.3Kg The SIEMENS digital input module, model 6ES7321-7RD00-0AB0, is a high-performance component designed for industrial automation control systems.Equipped with 4 independent digital input channels, it is capable of receiving 24 V DC signals and signal processing via NAMUR and DIN19234 standards. The module uses advanced optical quarantine technology to effectively prevent interference between signals and improve the reliability and stability of the system. In addition, the module has a diagnostic function, which can monitor the status of input signals in real time, find and report faults in time, thus greatly reducing maintenance costs and downtime.This module is applicable to various industrial environments, especially in areas with potential hazards, such as chemical, oil and gas industries.
