Yokogawa MAC2*A CENTUM XL Multipoint Analog Control

Product Overview

The Yokogawa MAC2*A is a multipoint analog control card designed for the Yokogawa CENTUM XL and microXL Distributed Control Systems. It provides multiple analog input and output channels for process variable control, handling signals such as pressure, flow, and temperature. The card integrates within the Yokogawa control system nest, enabling centralized analog loop management for complex industrial processes.

Key Specifications

• Product Family: Yokogawa CENTUM XL / microXL DCS
• Product Type: Multipoint Analog Control Card
• Input/Output Channels: Multiple analog I/O channels
• Signal Compatibility: Analog signals for process control
• Analog Input Range: -10 V to +10 V
• Analog Output Range: 0 mA to 20 mA
• Accuracy: ±0.1% to ±0.2% of full scale
• Sampling Rate: 1 to 2 times per second
• Power Supply: 24 V DC ±10%
• Weight: 1.53 lbs (0.69 kg)
• Operating Temperature: 0°C to 50°C

Features and Benefits

• Multipoint analog I/O consolidates multiple control loops into one card
• Wide input range of -10 V to +10 V accommodates various sensor signals
• 0-20 mA output range drives standard process control actuators
• High accuracy of ±0.1% ensures precise process variable control
• Compact card format fits standard Yokogawa DCS card nests
• Configurable control parameters using Yokogawa engineering software

Applications

• CENTUM XL DCS analog loop control
• Process variable monitoring (pressure, flow, temperature)
• MicroXL system analog I/O expansion
• Chemical process control skids
• Power plant auxiliary system control

FAQ

Q: What does the suffix *A indicate on the MAC2 module?
A: The suffix letter denotes the hardware revision level. MAC2*A is Revision A. Subsequent revisions include MAC2*B and MAC2*C with enhanced features.

Q: What is the difference between MAC2*A, MAC2*B, and MAC2*C?
A: MAC2*A is the initial revision. MAC2*B and MAC2*C feature improved specifications, enhanced signal processing, and broader compatibility with FIO modules of CENTUM VP/CS3000.

Q: Which DCS platforms support MAC2*A?
A: The MAC2*A is designed for Yokogawa CENTUM XL and microXL systems.

Q: How many control loops can one MAC2*A card manage?
A: The card supports multiple analog input and output channels simultaneously. The exact number depends on the specific model variant and system configuration.

Installation Guide

1. Power down the DCS rack before installing the analog control card
2. Align the MAC2*A card with the card nest guide rails
3. Insert the card firmly until the backplane connectors engage
4. Connect analog field wiring to the card terminals per the wiring diagram
5. Configure control loop parameters in the Yokogawa engineering station
6. Perform loop checks to verify analog signal integrity
7. Verify module status LEDs indicate normal operation

Selection Tips

• Select MAC2*A for CENTUM XL/microXL analog control applications
• For newer systems with FIO module compatibility, consider MAC2*B or MAC2*C
• Verify your DCS software version supports the selected revision
• Confirm required analog input/output ranges before ordering
• Ensure the card nest has available slots for installation