ABB 07KP90 07 KP 90 Communication Module

Product Overview

The ABB 07KP90 (also written as 07 KP 90) is an RCOM Communication Module designed for the ABB Advant Controller 31 (AC31) and Advant OCS industrial automation platforms. This module provides reliable serial communication capabilities, enabling seamless data exchange between the AC31 controller and external devices or supervisory systems. It is an essential component for building distributed automation architectures with ABB's proven ProContic CS31 bus technology.

Key Specifications

• Manufacturer: ABB (Asea Brown Boveri)
• Product Family: Advant Controller 31 / Advant OCS
• Type: RCOM Communication Module
• Function: Serial communication interface for CS31 system bus
• Dimensions (L × W × H): 15.2 cm × 10.2 cm × 15.2 cm (6.0" × 4.0" × 6.0")
• Weight: ~0.4 kg (0 lbs 12.9 oz)
• Mounting: DIN rail or screw mounting
• Protection Rating: IP20

Features & Benefits

• Reliable Serial Communication: Provides RCOM interface for connecting AC31 controllers to external systems, HMIs, or programming devices.
• CS31 Bus Integration: Fully compatible with ABB's ProContic CS31 decentralized automation system bus.
• Compact Design: Space-saving form factor ideal for crowded control cabinets.
• Industrial-Grade Construction: Built to withstand harsh industrial environments with wide temperature tolerance.
• Easy Integration: Plug-and-play compatibility with Advant Controller 31 basic units and I/O modules.

Typical Applications

• Manufacturing automation and process control
• Machine control and monitoring systems
• Building automation and energy management
• Water treatment and environmental control
• Legacy system integration and retrofits

Installation Guide

1. Mounting: Install the module on a standard 35 mm DIN rail (EN 50022) or use 4 × M4 screws for panel mounting. Ensure vertical orientation with terminals facing up and down for proper convection cooling.
2. Power Supply: Connect 24 V DC power supply to the designated terminals. Verify polarity before energizing.
3. Bus Connection: Connect the CS31 system bus cable to the RCOM interface. Ensure proper shield grounding to minimize electromagnetic interference.
4. Address Setting: Use the coding switch (located under the slide cover) to set the module address on the CS31 bus.
5. Grounding: Connect the functional earth terminal to the switchgear cabinet earth using a wire with a minimum cross-section of 6 mm².
6. LED Verification: Check status LEDs after power-on to confirm proper operation and bus communication.

FAQ

Q: What systems is the 07KP90 compatible with?
A: The 07KP90 is designed for ABB Advant Controller 31 (AC31) and Advant OCS systems. It integrates seamlessly with all AC31 basic units via the CS31 system bus.

Q: What is the difference between 07KP90 and 07KP93?
A: The 07KP90 is an RCOM communication module, while the 07KP93 is a MODBUS RTU communication processor with 2 serial interfaces. The 07KP93 offers more advanced protocol support.

Q: Can I use this module for new installations?
A: While the 07KP90 is primarily used for maintaining and expanding existing AC31 installations, ABB recommends evaluating newer AC500 or AC800M platforms for greenfield projects.

Q: What is the operating temperature range?
A: The module operates reliably within 0°C to +55°C. Storage temperature is -40°C to +75°C.

Selection Tips

• Verify your AC31 basic unit firmware version supports the 07KP90 module before ordering.
• For MODBUS RTU communication, consider the 07KP93 instead of the 07KP90.
• Ensure adequate cabinet ventilation; do not obstruct natural convection cooling with cable ducts.
• Always use shielded cables for CS31 bus connections and ground the shield at one end only.
• Check terminal block compatibility — the 07KP90 uses removable screw-type terminals with max. 2.5 mm² conductor cross-section.