Modicon 140CPU21304 CPU Module

Technical SpecificationsModel:140CPU21304 (CPU21304) Brand:Schneider MODICON Product Type:Quantum Series PLC CPU Controller Module Memory:768KB RAM Communication:1 x RS232 Modbus,1 x Modbus Plus Backplane Power:5V DC supplied by rack backplane Local I/O:Max 2 local I/O racks Remote I/O:Up to 31 remote RIO drops Boolean Execution Speed:0.3µs per boolean Mounting:Backplane rack slot mount Operating temperature:0℃ ~ +60℃ Storage temperature:-20℃ ~ +70℃ Relative humidity:5%~95%, non-condensing Weight:0.91kg Dimension:265mm142mm35mm Protection:IP20

System compatibility140CPU21304 belongs to MODICON Quantum series high performance CPU. Compatible with Quantum series backplane,local I/O modules and remote RIO racks. It can connect with HMI,upper monitoring system and other PLC nodes via Modbus Plus network. Suitable for chemical,water treatment,metallurgy,power plant medium and large process control system renovation and replacement as industrial spare part.

Function140CPU21304 is main processor for Quantum PLC system. It executes 984 ladder logic and IEC control program,collects field digital and analog signals,output control commands to field actuators. It supports local I/O and distributed remote RIO system,built-in hardware watchdog,lithium battery for RAM data backup and self-diagnosis function. Widely used for complex industrial sequence and process control, serving as reliable main control spare part.

InstallationCut off rack power before installation. Insert the 140CPU21304 CPU module into Quantum backplane slot and lock the board. Check backplane gold finger contact. Connect Modbus RS232 and Modbus Plus network cable,set network node address,download PLC program and complete online communication test before formal operation.

InterfaceBackplane bus connector,RS232 Modbus port,Modbus Plus network port,status and fault LED indicators,battery compartment for 140CPU21304 MODICON CPU module.

FeatureSchneider MODICON 140CPU21304 Quantum rack CPU,high speed logic execution,dual communication ports,large capacity local and remote I/O support,battery backup for memory data,hardware watchdog protection,slide switch for memory protection,stable operation in industrial environment,IP20 cabinet protection. This discontinued legacy industrial spare part used for old MODICON Quantum PLC system maintenance and replacement.

DiagnosticModule not recognized: check rack power supply,backplane contact and module insertion for 140CPU21304. CPU stop fault: check program error,lithium battery voltage and memory fault. Modbus Plus communication interruption: inspect network cable,shielding grounding and station address setting. I/O data abnormal: verify backplane connection and matching I/O module wiring. Fault alarm: read module diagnostic information through Concept programming software.

Product Brief140CPU21304 is Schneider MODICON Quantum series PLC CPU controller with 768KB memory. It supports local racks and up to 31 remote RIO stations,works for large industrial process automation control,classic spare part for legacy Quantum PLC system overhaul.

Disclaimer:All parameters are for reference only and shall not be used as the basis for quotation. Goods are scarce, overseas delivery lead time is 3-7 working days. It is only used for equipment maintenance and renovation.