Overview

The IMFEC12 High-Level Analog Input (FEC) module is designed to input up to 15 channels of analog signals into either the multifunction processor (MFP) or multifunction controller (MFC) module.

In contrast, the IMFEC11 High-Level Analog Input (FEC) module can handle 15 channels of either analog signals or frequency shift keyed (FSK) digital signals. It performs all the functions of the IMFEC12 module and additionally provides communication with Bailey-Fischer & Porter FSK digital smart transmitters and other smart devices, whether in a field bus or point-to-point configuration.

Specifications

Power Requirements

• Operating Power:
  • 5 VDC, ±5% at 85 mA (typical)
  • +15 VDC, ±5% at 25 mA (typical)
  • -15 VDC, ±5% at 20 mA (typical)
• Power Dissipation: 1.1 W (typical)
• Overvoltage Category: I for power per ANSI/ISA S82.01-1994

Operating

• Analog Inputs: 15 independently configured channels
• Analog Input Ranges:
  • 4 to 20 mA
  • 1 to 5 VDC
  • 0 to 1 VDC
  • 0 to 5 VDC
  • 0 to 10 VDC
  • -10 to +10 VDC
• Analog Updates:
  • A/D Conversions: 5 times/sec
  • FSK Digital Updates (IMFEC11 only): 3 to 10 times/sec (in field bus configuration)
• A/D Resolution: 14 bits with polarity
• Analog Accuracy:
  • 4 to 20 mA: 0.1%
  • 1 to 5 VDC: 0.1%
  • 0 to 5 VDC: 0.1%
  • 0 to 10 VDC: 0.1%
  • -10 to +10 VDC: 0.1%
  • 0 to 1 VDC: 0.25%
• FSK Digital Accuracy (IMFEC11 only): Same as transmitter accuracy for each input
• Common Mode Voltage: -12 VDC minimum, +15 VDC maximum
• Input Span:
  • ±12 VDC (±1 VDC)
  • ±10 VDC (±5 VDC)
  • ±5 VDC (±10 VDC)
• Common Mode Rejection: 90 dB minimum at 50/60 Hz
• Normal Mode Rejection: 70 dB minimum at 50/60 Hz
• Input Impedance: Greater than 1 MΩ (each channel)
• Overvoltage Category: III for inputs per ANSI/ISA S82.01-1994

Communication

• Baud Rate: 9600 baud

Environmental

• Ambient Temperature: 0° to 55°C (32° to 131°F) (non-condensing)
• Relative Humidity:
  • 5% to 95% up to 55°C (131°F)
  • 5% to 45% at 70°C (158°F) (non-condensing)
• Atmospheric Pressure: Sea level to 3 km (1.86 mi)
• Air Quality: Non-corrosive

Mounting

• Occupies a single slot in a standard INFI 90 OPEN module mounting unit (MMU)