Functionality:

The Honeywell 8C-TAOX61 51306981-175 Analog Output (AO) Module delivers high-level constant current to actuators and recording/indicating devices, and it supports HART-capable, multivariable instruments.

Notable Features:

• Extensive self-diagnostics
• Optional redundancy
• HART-capable
• Safe-state (FAILOPT) behaviors configurable on a per-channel basis
• Non-incendive output (No external user-supplied power required)

Safe-state Behavior (FAILOPT):

The Series 8 AO module supports the FAILOPT parameter on a per-channel basis. Users can configure each channel to either HOLD LAST VALUE or SHED to a SAFE VALUE. The output will always go to zero (safe state) if the IOM device electronics fail.

Open-wire Detection:

This Series 8 IO function can detect and annunciate open field wire with a Channel Soft Failure indication.

Detail Specifications – Analog Output with HART:

IOTA Models:

• 8C-TAOX61 Redundant, Coated 12”
• 8U-TAOX61 Redundant, Uncoated 12”

Output Type: 4-20 mA

Output Channels: 16

Output Ripple: < 100 mV peak-to-peak at power line frequency, across 250 Ω load

Resolution: ± 0.05% of Full Scale

Calibrated Accuracy: ± 0.35% of Full Scale (25°C), including linearity

Directly Settable Output Current Range: 0 mA, 2.9 mA to 21.1 mA

Maximum Open Circuit Voltage: 22 V

Response Time (DAC input code to output): Settles to within 1% of final value within 80 ms

Gap (0 mA) of Output to Field on Switchover: 10 ms maximum (applies to redundancy only)