Honeywell 8C-TDIL11 51308386-175 Digital Input Sequence of Events

Functionality:

The Honeywell 8C-TDIL11 Digital Input Sequence of Events (DISOE) Module accepts 24VDC discrete signals as discrete inputs. The inputs can be time-tagged to support 1ms resolution for Sequence of Events (SOE) logging.

Notable Features:

• Three Modes of Operation:
  • Normal: 20ms PV scan
  • Sequence of Events (SOE): 1ms resolution SOE, 20ms PV scan
  • Low Latency: 5ms PV scan
• Extensive internal diagnostics for data integrity
• Open Wire Detection (in Normal mode only)
• Optional redundancy
• Internal or external field power selection
• Onboard excitation power (no need for marshalling power)
• Supplies non-incendive field power
• Direct / Reverse Input Indication
• Galvanic isolation

Open-Wire Bad PV Detection:

This Series 8 IO function can detect and annunciate an open field wire. A seemingly valid PV from a channel diagnosed as having an open wire will provide a status of "invalid," thus preventing incorrect control action.

Detail Specifications – DISOE:

IOTA Models: 8C-TDIL11 Redundant, Coated, 12”

• Input Channels: 32
• Input Channel Scanning (PV):
  • Normal: 20ms
  • Fast: 5ms
• Digital Input Resolution for Sequence of Events (SOE): 1ms
• Galvanic Isolation (any input terminal voltage referenced to common): 1500 VAC RMS or ±1500 VDC
• Isolation Technique: Optical (in IOM)
• DI Power Voltage Range: 18 to 30 VDC
• ON Sense Voltage/Current: 13 VDC (min) or 3 mA (min)
• OFF Sense Voltage/Current: 5 VDC (max) or 1.2 mA (max)
• Input Impedance: 4.2 KΩ
• Absolute Delay Across Input Filter and Isolation: 5 ms ± 20%
• Field Resistance for Guaranteed ON Condition: 300 Ω max @ 15 VDC