Contemporary Control Systems BACnet Cube I/O BMT-DO4 - Manual (Page 3)

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Continuation Software Description
Binary Output Object 1…4
Property Remark / Value RW
Object_Identifier binary-output, instance 1 … 4 R
Object_Type BINARY_OUTPUT (4) R
Object_Name max. 42 Bytes, default “Relay 1” … “Relay 4” RW-E
Description max. 84 Bytes, default “” RW-E
Present_Value NULL (write only) / INACTIVE (0) / ACTIVE (1) RW
Status_Flags
IN_ALARM: 0
FAULT: 0
OVERRIDDEN:
0 = Switch A (Auto)
1 = Switch 0 (Off) or 1 (On)
OUT_OF_SERVICE: 0 / 1
R
Event_State NORMAL (0) R
Out_Of_Service FALSE (0) / TRUE (1) RW
Polarity NORMAL (0) / REVERSE (1) RW-E
Priority_Array [16] NULL / INACTIVE (0) / ACTIVE (1) R
Relinquish_Default INACTIVE (0) R
Inactive_Text max. 20 Bytes, default “Off” RW-E
Active_Text max. 20 Bytes, default “On” RW-E
Notification_Class
Unsubscribed UnconfirmedCOVNotification
0: no COV notification, default,
1: local broadcast,
2: global broadcast
RW-E
R: Read Property, W: Write Property, -E: Storage in EEPROM / Flash
Function Table for Binary Output
Out_Of_Service Polarity Switch Priority_Array Present_Value Binary Output OVER RIDDEN OUT_OF_SERVICE
0 0 A NULL / 0 / 1 0 / 0 / 1 0 / 0 / 1 0 0
0 0
0
1 NULL / 0 / 1
NULL / 0 / 1 0
1 0
1
1 0
0 1 A NULL / 0 / 1 0 / 0 / 1 1 / 1 / 0 0 0
0 1
0
1 NULL / 0 / 1
NULL / 0 / 1 1
0 0
1
1 0
1 0 A NULL / 0 / 1 0 / 0 / 1 0 0 1
1 0
0
1 NULL / 0 / 1
NULL / 0 / 1 0 / 0 / 1
0 / 0 / 1 0
1
0 1
1 1 A NULL / 0 / 1 0 / 0 / 1 1 0 1
1 1
0
1 NULL / 0 / 1
NULL / 0 / 1 0 / 0 / 1
0 / 0 / 1 0
1
0 1
Continuation Software Description
Analog Value Object 1
Property Remark / Value RW
Object_Identifier analog-value, instance 1 R
Object_Type ANALOG_VALUE (2) R
Object_Name max. 42 Bytes, default “Watchdog Time” RW-E
Description max. 84 Bytes, default “” RW-E
Present_Value
Time Constant of Watchdog Timer,
0: Watchdog is inactive, Maximum: 655.34 seconds
RW-E
Status_Flags
IN_ALARM: 0
FAULT: 0
OVERRIDDEN: 0
OUT_OF_SERVICE: 0
R
Event_State NORMAL (0) R
Out_Of_Service FALSE (0) R
Units seconds (73) R
R: Read Property, W: Write Property, -E: Storage in EEPROM / Flash
The Watchdog Timer resets Present_Value of all output objects to Relinquish_Default, if BACnet communication fails permanently. The timer is re-
started, when a BACnet message with an APDU is received.
When the timer times out, the priority arrays of all output objects are completely cleared to NULL.