ABB 07 KT 95 Control Unit: Practical Power for Demanding Automation
When a controller drops out on a gas compressor skid or a water treatment panel, every hour of downtime costs money. The ABB 07 KT 95 (order number GJR5252800R0200) is a compact control unit built to keep those processes running. It packs 12 digital inputs, 8 digital outputs, 4 analogue inputs and 2 analogue outputs into one unit, so you can handle mixed signal duties without adding extra modules. For buyers who need spares when they need them, this is a practical, ready-to-ship option.
Key Specifications That Shape Real Projects
I/O Count and Signal Mix
The 07 KT 95 gives you 12 digital inputs and 8 digital outputs as standard. On the analogue side, you get 4 analogue inputs and 2 analogue outputs. That balance suits small to medium control tasks where you monitor a handful of process variables and drive a few actuators. Note that the analogue inputs cannot be configured as digital inputs, so plan your channel allocation before you wire.
Processing Speed
Cycle time for 1 kByte of program (65% binary values, 35% words) is 0.22 ms. In practice, that means fast scan times for logic-heavy routines. The unit also supports cyclic, time-controlled multitasking with up to 20 tasks, so you can split control, monitoring and communication duties without one task starving another.
Memory and Data Handling
Program memory uses 480 kByte Flash EPROM and RAM. A Smart Media Card (flash) handles data storage and reloading of the SPS program. Data memory covers 8192 bits, 8192 words (16 bit) and 1024 double words (32 bit). You also get 256 k variables, including 16 k RETAIN variables that hold their values through power cycles.
Communication and Control Functions
The unit includes a CS 31 fieldbus for plant-level integration. Built-in special functions cover MODBUS protocols, PI and PID controllers, ASCII communication, 32-bit arithmetic and floating-point arithmetic. Logic components include unrestricted timers and counters plus 256 sequencers of 16 sequences each. Fast counters run 1 to 2 channels with various operating modes up to 50 kHz.
Where the 07 KT 95 Fits
The combination of digital and analogue I/O, fast counters and PID control makes this unit useful in several oil, gas and industrial settings.
- Pump and compressor control: Fast counters handle speed feedback, while PID loops manage pressure or flow.
- Valve and actuator sequencing: 256 sequencers coordinate multi-step valve operations on skids.
- Remote monitoring panels: CS 31 fieldbus links the controller to supervisory systems for data collection.
Installation and Setup Notes
The 07 KT 95 mounts with or without DIN rail, which gives panel builders flexibility. Connections use withdrawable terminal blocks with screw terminals, so you can pre-wire and swap the unit without disturbing field wiring. An exchangeable battery backs the data buffer, and a real-time clock is included for time-stamped events. The user program is password-protected. When wiring into a CS 31 fieldbus network, confirm cable and gateway requirements with your supplier before commissioning.
Integration and Compatibility
The CS 31 fieldbus is the primary network interface on this unit. If your plant runs a different protocol, you may need an external gateway or connection module to bridge the CS 31 segment to your existing network. The programming system is 907AC1131. MODBUS protocol support is built in, which helps when connecting to third-party devices that use that standard. Always verify the exact network architecture with Oil AutoTech before ordering, especially if you are replacing an older controller.
Selection Checklist Before You Buy
Before committing to the 07 KT 95, confirm these points:
- Your required digital and analogue channel counts fit the integral I/O.
- Your program size stays within the 480 kByte Flash EPROM and RAM.
- Your network uses CS 31 fieldbus or you have a gateway plan.
- Your panel accepts DIN rail or direct mounting.
Oil AutoTech supplies industrial automation spares for oil, gas and process plants. The team offers hands-on technical selection help, so you can match the right controller to your application. Contact Oil AutoTech today for pricing and availability.
