MODICON PC-E984-685 PLC Processor Module

Technical SpecificationsModel:PC-E984-685 Brand:MODICON Product Type:984 Series 685E Rack PLC CPU Processor Module Logic Scan Speed:1.0~2.5 ms/K Communication:2 x Modbus RTU port,1 x Modbus Plus port Local I/O:Support up to 5 local I/O racks Remote I/O:Max 31 remote RIO stations Memory:Onboard program memory,expandable with memory cartridge Backplane Power:5V DC supplied by rack backplane Mounting:Backplane rack slot mount Operating temperature:0℃ ~ +60℃ Storage temperature:-20℃ ~ +70℃ Relative humidity:5%~95%, non-condensing Weight:2.6kg Dimension:265mm145mm35mm Protection:IP20

System compatibilityPC-E984-685 belongs to MODICON 984 series high performance CPU processor. Compatible with MODICON 800 series I/O modules, matching backplane and RIO remote I/O adapter modules. It can connect with HMI, upper monitoring system and multiple PLC stations via Modbus Plus network. Suitable for chemical,water treatment,metallurgy,automated production line medium and large process control system renovation and replacement as industrial spare part.

FunctionPC-E984-685 is core rack PLC processor module for 984 series. It executes ladder logic control program, collects discrete and analog field signals, outputs control commands to field actuators. It supports local multi-rack I/O expansion and distributed remote RIO network, equipped with hardware watchdog, battery powered off-line data retention and self-diagnosis function. Widely used for medium to large industrial continuous process control, serving as reliable core control spare part.

InstallationCut off rack power before installation. Insert the PC-E984-685 CPU module into designated backplane slot and lock the module. Check backplane bus contact status. Connect Modbus and Modbus Plus communication cables, set network node address, download PLC program and complete online communication test before formal operation.

InterfaceBackplane bus connector,dual Modbus RS485 port,Modbus Plus network port,status and fault LED indicators for PC-E984-685 MODICON CPU module.

FeatureMODICON PC-E984-685 rack mount 984 series CPU,multi communication ports,large capacity local and remote I/O support,hardware watchdog protection,lithium battery data retention,standard single slot rack design,stable operation in industrial environment,IP20 cabinet protection. This discontinued legacy industrial spare part used for old MODICON 984 automation system maintenance and replacement.

DiagnosticModule not recognized: check rack power supply,backplane contact and module insertion for PC-E984-685. CPU stop fault: check program error,battery voltage and memory fault. Modbus Plus network interruption: inspect network cable,shielding grounding and station address. I/O data abnormal: verify backplane connection and field I/O module wiring. Fault alarm: read diagnostic codes through Modsoft programming software.

Product BriefPC-E984-685 is MODICON 984 series 685E rack PLC CPU processor module. It supports local multi-rack I/O and up to 31 remote I/O stations, widely used for legacy medium and large industrial automation control system,classic spare part for old process control equipment 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.