Omega SS-015-NA, User Manual

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9.5 Digital Interface
The Digital interface manages the three digital inputs: Pulse, Enable/Pulse B, and Reset. These are used to drive user-
configurable Rate, Delay, Pulse Width, Duty Cycle, Pulse Delay, and counter functions.
9.5.1 Digital Descriptor
Offset Name Value Description
0x00 Sensor Type 0x??
DIN, FREQUENCY, WIDTH, DUTY_CYCLE,
DELAY, or COUNT – set by Sensor Type field in
Configuration byte.
0x01 Data Type/Format 0x46 Float, Writeable
0x02 Configuration 0x?? Determines channel and Measurement Type
0x03 Sensor Device 0x?? Determines DIN signal types
0x04 UOMR “??” Units of measure
9.5.1.1 Digital Measurement Types
The Digital interface provides a measurement dependent on the input range/type selected. The units of
measure may be changed by the user.
Sensor Type Measurement SI Derived Units Measurement
0x18 DIN DIN DIN (Digital Inputs)
0x19 FREQUENCY (RATE) Hz RATE
0x1a PUSLE WIDTH msec PULSE WIDTH
0x1b DUTY CYCLE % DUTY CYCLE
0x1c PULSE DELAY msec DELAY
0x1d COUNTER CNT COUNTER
0x1e UP/DOWN COUNTER CNT UP/DOWN COUNTER
9.5.1.2 Digital Data Type/Format
Digital Data Type/Format
7 6 5 4 3 2 1 0
Smart
Sensor
Writeable
Factory
Calibrate
Reserved Data Type
0 1 0 0 6 == Floating point
9.5.1.2.1 Data Type
The 4-bit Data Type field determines the type of data of the specific sensor (see Data Types).
9.5.1.2.2 Factory Calibrate
No Factory calibration is used on the SS-015.
9.5.1.2.3 Writeable
The writeable bit is set, indicating that the sensor values may not be overwritten.
9.5.1.2.4 Smart Sensor
This bit is cleared.
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