✅ General Information

• Full Type: 07KP91 – Programmable RS232 / RS422 / RS485 Serial Interface Module

• Manufacturer: ABB (Sweden)

• Weight: Approx. 0.2 kg

• Dimensions (W×H×D): 68 × 54 × 76 mm (standard AC31/800xA I/O size)

• Mounting: DIN rail

• Protection: IP20

✅ Interface & Communication

• Serial Ports: 1 × programmable port (RS232 / RS422 / RS485 selectable via software)

• Protocols: ASCII, Modbus RTU, ABB proprietary, user‑configurable

• Baud Rate: 300 … 115.2 kbps

• Data Format: 7/8 data bits, 1/2 stop bits, odd/even/no parity

• Connector: D‑sub 9‑pin or screw terminal (depending on version)

• Isolation: Galvanic isolation between field side and system bus

✅ Electrical Ratings

• Supply Voltage: 24 VDC (18–30 VDC)

• Current Consumption: < 120 mA @ 24 VDC

• RS232: ±12 V levels, short‑circuit protected

• RS422/485: 5 V differential, 120 Ω termination optional

✅ Environmental

• Operating Temperature: 0 °C … +60 °C

• Storage Temperature: −40 °C … +70 °C

• Certifications: CE, UL, RoHS

✅ Key Features

• Multi‑standard serial (RS232/422/485) in one module

• Software‑configurable interface and protocol

• Compact, low‑power design for ABB Advant AC31 PLC & 800xA DCS

• Seamless integration with ABB process automation systems

• Suitable for connection to third‑party devices (scanners, printers, meters, drives)

✅ Application

• Connecting serial devices to ABB AC31 / 800xA systems

• Modbus RTU communication with slaves (drives, meters, RTUs)

• Barcode scanners, serial printers, operator terminals

• Legacy system integration (RS232/422/485)