Kona Home Sensor TRM
T0005370_TRM
Version Rev-C 1.0
TEKTELIC Communications Inc.
Confidential
Page 17 of 34
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RH
Ticks
set to 2 (two)
3.4.2
Digital Input Configuration
The Digital Input transducer type varies between different Home Sensor models. The type used
in each model is listed in Table 3-5.
Table 3-5: Digital Input Transducer Type for Different Home Sensor Models
Home Sensor Model
Digital Input Transducer Type
Base
Magnetic Reed Switch
External Connector
2-Wire External Connector
PIR
Magnetic Reed Switch
In fact, as Table 3-5 shows, the External Connector and Magnetic Reed Switch are mutually
exclusive, i.e. not both exist in the same module, such that the Digital Input is either the
External Connector or the Magnetic Reed Switch depending on the module type.
Table 3-6 shows a list of Digital Input configuration registers.
Table 3-6: Digital Input Configuration Registers
Address
Access
Value
Size
[bytes]
Description
0x2A
R/W
Mode
1
Bit 0: Rising Edge Enable
Bit 1: Falling Edge Enable
Other bits are ignored.
0x2B
R/W
Count Threshold
2
# of Triggers for event transmission. A
value of 0 disables event transmission
0x2C
R/W
Value to Transmit 1
Bit 0: Input State
Bit 1: Counter Value
Other bits are ignored.
3.4.2.1
Mode
The Digital Input is edge-triggered and can be set to trigger to rising-edge trigger (Low or Closed
to High or Open), falling-edge triggered (High or Open to Closed or Low) or both. An attempt to
set the Mode to 0x00 (i.e. to disable both rising and falling edges) is ignored by the Sensor.
Application Examples:
•
Door Open/Close detection would use both rising and falling triggers to detect when the
door was opened and when it was closed.