CTI2500C200 CTI 2500C-C200 Compact PLC CPU Module
CTI2500C200 (2500C-C200) is a compact CPU processor module from CTI Control Technology 2500 Series, designed for discrete and analog process control, and serves as a drop-in replacement for Siemens Simatic 505 series CPUs. It is equipped with 256K user memory, supporting up to 2048 digital I/O points and 1024 analog I/O points, 64 PID control loops and 128 alarm tags, which meets medium and large-scale automation control requirements for factory process equipment.
This CPU integrates multiple communication interfaces, including built-in 100Mbps Ethernet port, USB programming port, PROFIBUS-DP master interface and RS485 remote I/O port. It also carries an SD flash card slot for firmware upgrade and program backup. A 3-digit LED status display is mounted on the front panel, showing system running status, fault codes and IP address for convenient on-site diagnosis. The module runs stably within 0℃ to 60℃ operating temperature range, with CE and UL certifications, suitable for cabinet rack installation in industrial workshops. It can execute original programs developed for Siemens 545 series controllers without heavy code rewriting.
CTI2500C200 is widely deployed in chemical, water treatment, packaging machinery and manufacturing process control systems. As the core processing unit of the 2500 compact PLC system, it undertakes logic calculation, analog closed-loop regulation, alarm management and data interaction with HMI, SCADA and remote I/O stations. Its PROFIBUS-DP function supports connection with field drives and distributed I/O modules, while Ethernet enables program download and upper computer data transmission.
This model belongs to legacy industrial spare parts. Many old control cabinets based on Simatic 505 still rely on this CPU module. When the original processor fails, replacing it with CTI2500C200 can reuse existing backplane, I/O modules and application programs, with no need to modify wiring or redesign control scheme. It drastically reduces system renovation cost and shortens production downtime. The original control logic and alarm mechanism remain unchanged, so operators can continue normal operation without extra training.
We supply fully tested CTI2500C200 CPU modules. Before shipment, each unit undergoes complete functional inspection, including power-on startup test, program download and upload verification, communication port test, LED status check and memory read-write test to confirm all hardware functions work properly. All items come with 12-month warranty. Our automation technical team offers remote support for rack installation, program backup, network configuration and fault troubleshooting. Fast global shipping is available for urgent maintenance orders.
For automation maintenance engineers and system integrators, CTI2500C200 is an ideal spare CPU for legacy 505-compatible control systems. It maintains stable operation of aging process control equipment, extends the service life of existing automation assets and avoids high investment in full PLC system replacement.