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P a g e
5
Appendix: SP-014 Registers
The following Appendix provides the registers and list index for the Layer N SP-014 Process Monitoring Smart Probe. This
information is intended to aid users who will be making configurations and adjustments to their Layer N SP-014 Process
Monitoring Smart Probe through the Command Line Interface or other custom interfaces.
Smart Probe devices share a common platform architecture that provides extensive monitoring and control capabilities thru
a set of platform generic registers. These registers may be accessed using I2C based commands directly to the Smart Probe
devices or thru a set of Modbus based registers when using Omega Interface devices. Refer to the
Smart Sensor Device
Interface
manual for further information.
When powered on or after a device reset each Smart Sensor based device will enumerate 1 or more sensor instances which
are described by the device specific Sensor Descriptors which include configuration options, measurement type and units of
measure for the corresponding sensor values. Additional sensor information is provided in sensor specific IPSO object
descriptions which include extended measurement type, precision and tracking of minimum/maximum readings.
Each enumerated Sensor has a Descriptor Base address location and a Sensor IPSO / Configuration structure address
location based on the sensor mix selected.
Sensor Descriptor Base IPSO/Configuration
Enumerated Sensors
0
0x0060 (0xf030)
0x08a8 (0xf454)
Process 0
1
0x0068 (0xf034)
0x09a8 (0xf4d4)
Process 1
DIO (SP-014-1)
2
0x0070 (0xf038)
0x0aa8 (0xf554)
Process 2
DIO (SP-014-1)
3
0x0078 (0xf03c)
0x0ba8 (0xf5d4)
DIO (SP-014-1)
5.1
Process Interface
The Process Input interface provides single ended voltage and current loop inputs. The Sensor Configuration and Sensor
Device fields may be written to provide control of the overall function of the channel and the signal types used.
Offset
Name
Value
Description
0x00
Measurement
Type
0x??
Analog Voltage and Current – set by Sensor Type
field in Configuration byte.
0x01
Data Type/Format
0x46
Float, writeable
0x02
Configuration
0x??
Determines Process input type/range
0x03
Sensor Device
0x??
Determines AIO signal types
0x04..0x08
UOMR
“??”
Units of measure
5.1.1
Process Measurement Types
The Process interface provides a measurement dependent on the input range/type selected. The units of measure
may be changed by the user.
Sensor Type
SI Derived
Units
Measurement
0x11
mV
Process Voltage (0 - 1.0 V)
0x13
mA
Process Current (0-24 mA current loop, common return)
