Analog Control Station (SAC) provides process loop control and monitoring capabilities for a single loop. The analog control station receives and sends information to and from the Harmony controller through the CIO-100 control I/O block, the IMCIS12 control I/O module, or the IMQRS12 quick response module. It includes features not found on earlier digital control stations:

• Additional analog input display with square root option.
• High-resolution bar graph displays.
• Five or 40-kilobaud serial link.

Specifications

• Displays:
  • 3 gas plasma bar graphs (200 segments for process variable and set point at 0.5% resolution, 100 segments for output at 1.0% resolution)
  • 8-character, 14-segment, alphanumeric display
• Bypass:
  • Automatic entry or selected from the faceplate
• Communication:
  • 5 or 40 kbaud RS-485 serial link to the controlling module through the termination unit
  • 40 kbaud with IMMFP11 and IMMFP12 modules with firmware revision level E_0 or higher
• Size:
  • 72 x 144 x 381 mm (2.82 x 5.67 x 15.0 in.)
• Mounting:
  • Flush panel mounting
• Supply voltage (at the termination device):
  • 21.6 VDC minimum, 27.0 VDC maximum
• Power consumption (at the termination device):
  • 540 mA at 24 VDC
• Analog output:
  • Current
  • Load
  • Compliance
  • Inductance
  • Accuracy
  • D/A resolution
    • 3 to 21 mA
    • 600 Ω maximum
    • 600 mH maximum
    • 2.0% of span at 25°C (77°F)
    • 8 bits
• Analog input:
  • Voltage range
  • Impedance
  • Accuracy
  • A/D resolution
  • Normal mode rejection
  • Common mode rejection
  • Common mode voltage
    • +0.75 VDC to +5.25 VDC maximum

    • 10 MΩ

    • 1.5% of span at 25°C (77°F)
    • 8 bit
    • 75 dB minimum at 60 Hz
    • 90 dB minimum at 60 Hz
    • ±5 VDC maximum
• Electric drive:
  • R/L contact
  • M/A signal
  • M/A power
    • 100 mA maximum (sink or source)
    • 100 mA maximum (sink or source)
    • 21.6 to 27 VDC
• Electromagnetic/radio frequency interference:
  • Do not use communication equipment any closer than 2 meters from the station panel
• Ambient temperature:
  • 5° to 40°C (41° to 104°F)
• Humidity:
  • Operating: 20% to 80% (noncondensing)
  • Storage: 10% to 95% (noncondensing)
• Atmospheric pressure:
  • Sea level to 3 km (1.86 mi)
• Air quality:
  • Noncorrosive
• Certification:
  • CSA certified for use as process control equipment in an ordinary (nonhazardous) location