KJ3241X1-BA2 | Emerson DeltaV | Interface Card

Product Overview

The Emerson KJ3241X1-BA2 is a PROFIBUS DP Serial Interface Card for the DeltaV™ S-Series distributed control system. It enables high-speed, deterministic communication between DeltaV controllers and PROFIBUS DP field devices such as remote I/O, drives, and intelligent sensors. The card features dual serial ports supporting RS-232 and RS-422/485 protocols.

Key Specifications

• Model: KJ3241X1-BA2
• Type: PROFIBUS DP Serial Interface Card
• Communication Protocol: PROFIBUS DP, Modbus RTU/ASCII
• Serial Ports: 2 ports (RS-232 / RS-422/485 half or full duplex)
• Baud Rate: 300 Baud to 115 KBaud (configurable per port)
• Power Supply: 12 VDC at 300 mA
• Terminal Block Key: D4
• Dimensions: 4.3 × 12.5 × 18.5 cm
• Weight: 0.4 kg (1000g shipping)

Environmental Specifications

• Operating Temperature: -40°C to +70°C
• Shock Resistance: 10g, ½ sine wave for 11 ms
• Vibration: 1 mm peak-to-peak (2–13.2 Hz); 0.7g (13.2–150 Hz)
• Relative Humidity: 5% to 95% non-condensing
• Airborne Contaminants: ISA-S71.04 Class G3
• EMI/EMC: Shielded design for high-noise industrial environments

Installation Guide

1. Set the terminal block rotary key to position D4 to ensure correct mating.
2. Install the card in an 8-wide I/O carrier slot compatible with S-Series controllers.
3. Connect PROFIBUS DP or serial cables to Port 1 and/or Port 2 as required.
4. Configure each port independently via DeltaV Explorer (master/slave, baud rate, protocol).
5. Verify communication status via front-panel LEDs (Power, Error, Port Status).

FAQ

• Q: What protocols does KJ3241X1-BA2 support?
  A: It supports PROFIBUS DP, Modbus RTU, and Modbus ASCII on its dual serial ports.
• Q: Can both ports operate simultaneously?
  A: Yes, each port is independently configurable, supporting up to 32 datasets per port (64 total).
• Q: Is this card compatible with DeltaV SIS?
  A: It is primarily designed for standard DeltaV DCS; verify SIS compatibility for safety-critical applications.
• Q: What is the maximum cable length for RS-485?
  A: At 115 KBaud, typical maximum is 100 m; at lower baud rates, distances up to 1200 m are achievable.

Selection Tips

• Use KJ3241X1-BA2 for integrating legacy serial devices or PROFIBUS DP networks into DeltaV S-Series systems.
• For higher availability PROFIBUS networks, consider the KJ3243X1-BB2 Series 2 Plus Profibus DP Card.
• Ensure proper shielding and grounding of serial cables to maintain signal integrity in electrically noisy environments.