Sequence of Events card specifications

Installation notes

Terminal block connections

Table: Discrete 32-channel terminal block used with the Sequence of Events card
Terminal Channel nomenclature Terminal Channel nomenclature
Terminal 1 Channel 1+ Terminal 17 Channel 9+
Terminal 2 Channel 1- Terminal 18 Channel 9-
Terminal 3 Channel 2+ Terminal 19 Channel 10+
Terminal 4 Channel 2- Terminal 20 Channel 10-
Terminal 5 Channel 3+ Terminal 21 Channel 11+
Terminal 6 Channel 3- Terminal 22 Channel 11-
Terminal 7 Channel 4+ Terminal 23 Channel 12+
Terminal 8 Channel 4- Terminal 24 Channel 12-
Terminal 9 Channel 5+ Terminal 25 Channel 13+
Terminal 10 Channel 5- Terminal 26 Channel 13-
Terminal 11 Channel 6+ Terminal 27 Channel 14+
Terminal 12 Channel 6- Terminal 28 Channel 14-
Terminal 13 Channel 7+ Terminal 29 Channel 15+
Terminal 14 Channel 7- Terminal 30 Channel 15-
Terminal 15 Channel 8+ Terminal 31 Channel 16+
Terminal 16 Channel 8- Terminal 32 Channel 16-

Specifications

Table: Sequence of Events card specifications
Item Specification
Number of channels 16. Each channel can be configured for DI or SoE operation.
Scan rate 0.25 ms for all 16 channels
Time stamp accuracy (for SoE channels only) 0.25 ms on a card; 1 ms in a controller. Accuracy with reference to system clock time after a 4 ms debounce filter has been applied.
Detection level for ON > 2 mA
Detection level for OFF < 0.25 mA
Impedance 5 KΩ
LocalBus current (12 VDC nominal), per card
  • 75 mA typical
  • 100 mA maximum
Field circuit power, per card 75 mA at 24 VDC (±20%)
Heat dissipation 2.6 W
Isolation Each channel is optically isolated from the system and factory tested to 1500 VDC.
Mounting Assigned slot of I/O carrier

Wiring diagram

Figure: Sequence of Events card wiring diagram


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