The 2500-C400 CPU provides discrete, analog, loop, advanced mathematical, and high-speed sequential control capability for your CTI 2500 Series® or Simatic® 505 control system
Features
- Replaces Siemens® 555-1102, 555-1104, 555-1106 with no rewiring
- 3072K user memory
- 8192 digital / 8192 analog I/O
- 512 loops / 512 alarms
- Built-in Ethernet for MMI and programming
- Built-in USB for programming
- Profibus-DP master and RS485 Remote I/O ports
- Built-in SD flash card slot for firmware update
2500-C400 is a 2500 Series® process control processor (CPU) produced by the American company CTI (Control Technology Inc.). It is equipped with 3072K (3MB) user memory and is the highest configuration model in this series. It is specially designed for large-scale process control applications and can seamlessly replace the Siemens Simatic® 545/555 controllers. It offers higher performance and lower costs. It runs the Integrity® real-time operating system and is suitable for industrial process control scenarios that require a large number of PID loops, alarms, and complex mathematical operations.

Siemens model CTI alternative model User memory Simatic 545-1106 2500-C300 512K
Simatic 545-1156 2500-C400 3072K
Simatic 555-1106 2500-C300 512K
Simatic 555-1156 2500-C400 3072K
Simatic 555-1356 2500-C400 3072K






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