Omega SP-005 User manual

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TM
User’s Guide
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SP-005
Thermocouple and RTD
Smart Probe

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omega.com [email protected]
Servicing North America:
Omega Engineering, Inc.
800 Connecticut Ave. Suite 5N01, Norwalk, CT 06854
Toll-Free: 1-800-826-6342 (USA & Canada only)
Customer Service: 1-800-622-2378 (USA & Canada only)
Engineering Service: 1-800-872-9436 (USA & Canada only)
U.S.A.
Headquarters:
Tel: [phone]
e-mail: [email protected]m
Fax: [phone]
The information contained in this document is believed to be correct, but OMEGA accepts no liability for any errors it contai
ns and
reserves the right to alter specifications without notice.

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Table of Contents
1Notes, Warnings, and Cautions .................................................................................................................. 5
2Introduction .............................................................................................................................................. 6
3Hardware Setup ........................................................................................................................................ 7
3.1 Connecting your Layer N Smart Interface ..........................................................................................................7
3.2 Thermocouple and RTD Wiring Diagram............................................................................................................7
4SYNC Configuration ................................................................................................................................... 8
4.1 Connecting to SYNC - Automatic Detect ............................................................................................................8
4.2 Connecting to SYNC – Manual...........................................................................................................................8
4.2.1 Communication Interface..................................................................................................................................... 8
4.3 Thermocouple Interface ...................................................................................................................................9
4.3.1 Cold Junction Calibration ................................................................................................................................... 10
4.4RTD Interface .................................................................................................................................................11
4.5 Setting Alarms................................................................................................................................................11
4.6 ON/OFF Control .............................................................................................................................................12
5Appendix: SP-005 Registers...................................................................................................................... 13
5.1 Thermocouple Descriptor ...............................................................................................................................13
5.1.1 Thermocouple Measurement Type.................................................................................................................... 13
5.1.2 Thermocouple Input Data Type/Format ............................................................................................................ 14
5.1.2.1 Data Type ........................................................................................................................................................................ 14
5.1.2.2 Factory Calibrate............................................................................................................................................................. 14
5.1.2.3 Sensor Writeable ............................................................................................................................................................ 14
5.1.2.4 Smart Sensor................................................................................................................................................................... 14
5.1.3 Thermocouple Configuration ............................................................................................................................. 14
5.1.3.1 Sensor Type / Range ....................................................................................................................................................... 14
5.1.3.2 Apply Scaling ................................................................................................................................................................... 14
5.1.3.3 Lock ................................................................................................................................................................................. 15
5.1.3.4 Assigned .......................................................................................................................................................................... 15
5.1.3.5 Available.......................................................................................................................................................................... 15
5.1.4 Thermocouple Device Byte ................................................................................................................................ 15
5.1.5 IPSO Thermocouple Temperature Sensor Definition......................................................................................... 15
5.1.5.1 Sensor Trigger Function .................................................................................................................................................. 15
5.2RTD Descriptor ...............................................................................................................................................16
5.2.1 RTD Measurement Types ................................................................................................................................... 16
5.2.2 RTD Input Data Type/Format ............................................................................................................................. 16
5.2.2.1 Data Type ........................................................................................................................................................................ 16
5.2.2.2 Factory Calibrate............................................................................................................................................................. 16
5.2.2.3 Configurable Enable........................................................................................................................................................ 16
5.2.2.4 Sensor Writeable ............................................................................................................................................................ 16
5.2.2.5 Smart Sensor................................................................................................................................................................... 17
5.2.3 RTD Configuration .............................................................................................................................................. 17
5.2.3.1 Sensor Type / Range ....................................................................................................................................................... 17
5.2.3.2 Apply Scaling ................................................................................................................................................................... 17
5.2.3.3 Lock ................................................................................................................................................................................. 17
5.2.3.4 Assigned .......................................................................................................................................................................... 17
5.2.3.5 Available.......................................................................................................................................................................... 17
5.2.4 RTD Input Sensor Device .................................................................................................................................... 17
5.2.5 RTD Input Connector.......................................................................................................................................... 17
5.2.6 RTD IPSO Definition............................................................................................................................................ 18
5.2.6.1 Sensor Trigger Function .................................................................................................................................................. 18

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5.3 Digital Input / Output Interface ......................................................................................................................18
5.3.1 DIO Descriptor.................................................................................................................................................... 18
5.3.1.1 DIO Sensor Type.............................................................................................................................................................. 18
5.3.1.2 DIO Data Type/Format.................................................................................................................................................... 19
5.3.1.3 Data Type ........................................................................................................................................................................ 19
5.3.1.4 Factory Calibrate............................................................................................................................................................. 19
5.3.1.5 Sensor Writeable ............................................................................................................................................................ 19
5.3.1.6 Smart Sensor................................................................................................................................................................... 19
5.3.2 DIO Input Configuration ..................................................................................................................................... 19
5.3.2.1 Lock ................................................................................................................................................................................. 19
5.3.2.2 Apply Scaling ................................................................................................................................................................... 19
5.3.2.3 Assigned .......................................................................................................................................................................... 19
5.3.2.4 Available.......................................................................................................................................................................... 19
5.3.3 DIO Device Configuration................................................................................................................................... 20
5.3.4 DIO IPSO Definition ............................................................................................................................................ 20
5.3.4.1 Sensor Trigger Function .................................................................................................................................................. 20
5.3.5 DIO Input Circuitry.............................................................................................................................................. 21
5.4 Outputs .........................................................................................................................................................22
5.4.1 PWM Rate........................................................................................................................................................... 22
5.4.2 Active State......................................................................................................................................................... 22
5.4.3 Output Drive....................................................................................................................................................... 22
5.4.4 Output Type........................................................................................................................................................ 22
6Specifications .......................................................................................................................................... 23

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1Notes, Warnings, and Cautions
If the equipment is used in a manner not specified in this manual, the protection by the equipment may be impaired.
Do not operate the equipment in flammable or explosive environments.
It is important to read and follow all precautions and instructions in this manual before operating or commissioning this
device as it contains important information relating to safety and EMC. Failure to follow all the safety precautions may
result in injury and / or damage to your equipment.
The following labels identify information that is especially important to note:
Note: Provides you with information that is important to successfully setup and use the SP-005.
Caution or Warning: Tells you about the risk of electrical shock.
Caution, Warning, or Important: Tells you of circumstances that can affect the instruments functionality and must
refer to accompanying documents.

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2Introduction
The Layer N SP-005 Thermocouple and RTD Smart Probe provides an easy way to integrate your thermocouple and RTD probes to
the Layer N Ecosystem. The SP-005 accepts standard M12 thermocouples and RTDs through its M12 4-pin connector and Layer N
Smart Interfaces through its M12 8-pin connector. The optional M12-S-M-FM connector can be utilized to easily connect wire
leads typically found on thermocouples or RTD probes to your SP-005. The SP-005 supports up to 2 thermocouple inputs or a
single 2, 3, or 4-wire RTD input.
The Layer N SP-005 features 2 configurable digital I/O pins. These can be used for a myriad of applications including driving
relays, physical alarms, or sensing dry contacts like door switches. The SP-005 can also be utilized as an edge controller, with
autonomous independent decision-making capabilities to generate local alarms or provide control outputs based on sensor
inputs.
Included with your SP-005
•SP-005 Unit
•Quick Start Guide
Additional Material Needed
•Layer N Smart Interface\Computer with Windows OS
•SYNC configuration software
•RTD or Thermocouple Probe
Optional Materials
•M12-S-M-FM Screw Terminal Accessory

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3Hardware Setup
3.1 Connecting your Layer N Smart Interface
The SP-005 requires a Layer N Smart Interface to connect to your computer. Use the M12 8-Pin Connector diagram below to
connect your SP-005 to your Layer N Smart Interface.
3.2 Thermocouple and RTD Wiring Diagram
Most M12 thermocouple and RTD probes can be connected directly to the SP-005. If you are connecting wire directly to the
SP-005, view the wiring diagrams provided below:
Pin
Name
Function
Pin 1
DIO 0
Discrete I/O Signal 0
Pin 2
INTR
Interrupt Signal
Pin 3
SCL
I2C Clock Signal
Pin 4
SDA
I2C Data Signal
Pin 5
Shield
Shield Ground
Pin 6
DIO 1
Discrete I/O Signal 1
Pin 7
GND
Power Ground
Pin 8
3.3VDD
Power Supply
Pin
Thermocouple
Pin 1
TC 2 Negative
Pin 2
TC 1 Positive
Pin 3
TC 1 Negative
Pin 4
TC 2 Positive
M12 8-Pin Connector
M12 4-Pin Connector
RTD 4 Wire Option 1
RTD 4 Wire Option 2
RTD Wire 2
RTD Wire 3

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4SYNC Configuration
Layer N Smart Probe products are easily configurable through SYNC configuration software. Ensure SYNC is running on your
Windows OS computer before continuing. Connect your SP-005 to your computer through your Layer N Smart Interface.
Note: SYNC is available to download for free on the OMEGA website.
4.1 Connecting to SYNC - Automatic Detect
Once the SP-005 and Layer N Smart Interface are connected to your computer, SYNC will automatically detect it and begin
displaying temperature readings.
Note: If you have successfully connected your SP-005 to SYNC and have readings appearing in SYNC, skip ahead to
the section titled Thermocouple Interface or RTD Interface.
4.2 Connecting to SYNC – Manual
If SYNC does not automatically detect your device, follow these instructions to manually connect it.
Step 1: Click on the icon located on the top left of the SYNC interface.
Step 2: Proceed through the Add Device Wizard and click End Device / Probe.
4.2.1 Communication Interface
Set the communication parameters for the Layer N Smart Interface that you are connecting.
Note: The connection type and parameters must be accurate for a proper connection to be established. Failure to
accurately setup communication parameters may result in communication errors.
• Connection Type: Select the type of connection you have between your SP-005 and your computer.
• Command Timeout: The maximum time (in milliseconds) for a command to be completed before the command is
aborted.
Note: The default command timeout is 500 milliseconds. It is recommended that this section be left alone to avoid
communication errors.
USB Communication Interface
USB Serial Communication Interface

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• Device Address: If your Smart Interface is part of a Network, enter the Network Address here. The default network
address is 1 for most devices. Please refer to the manual of your Smart Interface for more
information.
Note: The default Device Address is 1.
• Device IP or Port: The COM port number that your device is connected to on your computer.
Important: The following parameters should NOT be changed. These settings should NOT be changed unless the
configuration has been done on the interface.
• BaudRate: Controls bits per second
• DataBits: The number of ‘bits’ in each character sent.
• Parity: A means of checking correctness of character by adding an extra ‘bit’ to the character and setting the value
based on all the other bits in the character.
• StopBits: The number of ‘bits’ used to indicate the end of the character.
Once you have completed setting the communication parameters for your device, click Finish.
4.3 Thermocouple Interface
The SP-005 provides interfaces to type J, K, T, E, N, R, S, B and C thermocouples with the capability of enabling or disabling
the open detect feature. To use these features, follow these steps:
Step 1: Click the Inputs configuration tab on SYNC and choose your input type from the Type dropdown.
Step 2: Click the input you wish to configure and select your thermocouple type from the Device Range/Type dropdown.
Step 3: Click the Open Detect dropdown and choose to enable or disable it.

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4.3.1 Cold Junction Calibration
The SP-005 has automatic Cold Junction Compensation and is factory calibrated so that in most cases it needs no
adjustment. If increased accuracy is desired, Cold Junction Calibration can be performed as described below:
Step 1: Ensure your thermocouple has been configured in the previous section and click Calibration beneath the
input interface.
Step 2: Insert the probe into 0°C (32°F) reference as outlined in SYNC and allow it to stabilize. Once the
thermocouple is stable in a 0°C environment, click Calibrate.
For thermocouples that do not read to 0°C, One-Point Calibration can be used instead of Ice-Point Calibration.

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4.4 RTD Interface
The SP-005 supports 100, 500, and 1000 ohm Platinum RTD sensors in 2, 3, and 4-wire configurations. To use these
features, follow these steps:
Note: A single RTD connection is supported.
Step 1: Click the Inputs Configuration Tab on SYNC and choose your input type from the Type dropdown.
Step 2: Click the input you wish to configure and select your RTD type from the Device Range/Type dropdown.
Step 3: Click the Wire dropdown and choose your wiring configuration.
4.5 Setting Alarms
Alarms are set by clicking the icon in SYNC on the desired input signal found in the Inputs Configuration Tab. Setup
the threshold and alarm type in the Condition section and then select which output to turn on in the Action section. The
alarm can be set to be latching or non-latching in the Recovery section.

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4.6 ON/OFF Control
To configure ON/OFF Control on a device, navigate to the Output Configuration Tab in SYNC and click on the icon
located to the right of the available outputs. Clicking the icon will open Define ON/OFF Control dialog box as seen below.
Choose the input with the active alarm that you would like to control and set your preferred parameters.

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5Appendix: SP-005 Registers
The following Appendix provides the registers and list index for the Layer N SP-005 Thermocouple and RTD Smart Probe.
This information is intended to aid users who will be making configurations and adjustments to their Layer N SP-005
Thermocouple and RTD 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
Sensor Enumeration
0
0x0060 (0xf030)
0x08a8 (0xf454)
Thermocouple 1
Thermocouple 1
RTD
1
0x0068 (0xf034)
0x09a8 (0xf4d4)
DIO (SP-005-1)
Thermocouple 2
DIO (SP-005-1)
2
0x0070 (0xf048)
0x0aa8 (0xf554)
DIO (SP-005-1)
3
5.1 Thermocouple Descriptor
The Thermocouple Input Interface provides interfaces to type J, K, T, E, N, R, S, B and C thermocouples. The Sensor
Configuration and Sensor Device fields may be written to provide control of the overall function of the channel and the
thermocouple types used.
Offset
Name
Value
Description
0x00
Measurement Type
0x20
Thermocouple Temperature
0x01
Data Type/Format
0x66
Float, writeable
0x02
Configuration
0x4?
Determines Thermocouple type
0x03
Sensor Device
0x??
Determines connection type
0x04..0x08
UOMR
“°C”
Units of measure
5.1.1 Thermocouple Measurement Type
The Thermocouple interface provides a measurement of temperature in °C.
Sensor Type SI Derived Units Measurement
0x20
°C
Thermocouple Temperature

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5.1.2 Thermocouple Input Data Type/Format
The SP-005 supports extended configuration and provides factory calibration. All data values are returned as 32-bit
floating point values.
Thermocouple Input Data Type
7
6
5
4
3
2
1
0
Smart
Sensor
Sensor
Writeable
Factory
Calibrate
Reserved Data Type
0
0
?
0
0x06 == FLOAT
5.1.2.1 Data Type
The 4-bit Data Type field determines the type of data of the specific sensor.
5.1.2.2 Factory Calibrate
The Factory Calibrate bit is used during factory calibration. If set, the factory calibration attributes are applied to the
sensor reading before the sensor scaling. If clear, not factory calibration attributes are applied. If the sensor does not
support factory calibration the Factory Calibrate bit is ignored and will always read as 0.
5.1.2.3 Sensor Writeable
If the Sensor Writeable bit is set the sensor value may be overwritten with a preset value. This capability is useful in
sensors such as up/down counters, where a preset, or possibly a zero value must be written to the sensor value.
5.1.2.4 Smart Sensor
Refer to the Smart Sensor Device Interface documentation.
5.1.3 Thermocouple Configuration
Thermocouple Configuration
7
6
5
4
3
2
1
0
Available
Assigned
Apply
Scaling
Lock
Sensor Type (Range)
0
*
?
?
See Below
5.1.3.1 Sensor Type / Range
Sensor Type
Sensor Input Type (Range)
Measurement Type
0x00
Type J
0x20
Temperature (°C)
0x01
Type K
0x20
Temperature (°C)
0x02
Type T
0x20
Temperature (°C)
0x03
Type E
0x20
Temperature (°C)
0x04
Type N
0x20
Temperature (°C)
0x05
Reserved
0x20
Temperature (°C)
0x06
Type R
0x20
Temperature (°C)
0x07
Type S
0x20
Temperature (°C)
0x08
Type B
0x20
Temperature (°C)
0x09
Type C
0x20
Temperature (°C)
5.1.3.2 Apply Scaling
For more information on Gain and Offset, refer to the Smart Sensor Manual. If set, the user defined Offset and Gain
values will be used to adjust the sensor reading:
Result = (Raw Reading * Gain) + Offset

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5.1.3.3 Lock
If set, the user specified units of measure string (4-character maximum) will be used in place of the default units of
measure.
5.1.3.4 Assigned
Refer to the Smart Sensor Device Interface documentation.
5.1.3.5 Available
Refer to the Smart Sensor Device Interface documentation.
5.1.4 Thermocouple Device Byte
The Sensor Device byte determines whether the Open Circuit detection is enabled.
I/O (TC)
7
6
5
4
3
2
1
0
0
0
0
Open Circuit Detect
0
Disabled
1
Enabled
0
0
0
0
5.1.5 IPSO Thermocouple Temperature Sensor Definition
The Thermocouple sensor IPSO definition provides signal range, measured min/max values, and IPSO object type
information. The Range information is Thermocouple Type dependent.
Offset
Name
Value
Description
0x00
Sensor Type
3303
Temperature (oC)
0x02
Precision
1
Provides reading of xxx.x
0x04
Sensor Trigger Function
??
See 4.1.5.1
0x08
Min Measured
??
Minimum reading since last reset
0x0c
Max Measured
??
Maximum reading since last reset
0x10
Min Range
??
Type
Min Range
Max Range
J
-210
1200
K
-160
1272
T
-190
400
E
-220
1000
N
-100
1300
R
40
1788
S
100
1768
B
640
1820
X
0
2320
0x14 Max Range ??
5.1.5.1 Sensor Trigger Function
The Sensor Trigger function is used to reset the IPSO min/max values as well as control the ICE Point / Single-Point Calibration
process.
Sensor Trigger Function
7
6
5
4
3
2
1
0
0 0 0 0 0 0 0
Reset
Min/Max
15
14
13
12
11
10
9
8
0 0
Calibration
Reset
Calibration
Status
Calibration
Mode
0
Capture
Low
Calibration
Start

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The Calibration mode is entered by writing a 1 to the Calibration Mode bit. While in the calibration mode the
calibration registers may be accessed, the Capture may be used to capture real time value and the Calibration Start
may be set.
When the Calibration Start bit is set the Calibration Status bit will remain set until the calibration process is complete.
Setting the Calibration Reset bit will clear the calculated Offset values.
5.2 RTD Descriptor
The RTD Input interface provides interfaces to type 100, 500 and 1000 ohm 385 Curve, 100 ohm 392 Curve and 100 ohm
3916 Curve RTD devices in 2, 3 and 4 wire configurations. A single RTD connection is supported. The Sensor Configuration
and Sensor Device fields may be written to provide control of the overall function of the channel and the RTD type used.
Offset
Name
Value
Description
0x00
Measurement Type
0x21
RTD (Temperature)
0x01
Data Type/Format
0x66
Float, writeable
0x02
Configuration
0x4?
Determines RTD type
0x03
Sensor Device
0x??
Determines connection type
0x04..0x08
UOMR
“°C”
Units of measure
5.2.1 RTD Measurement Types
The RTD interface provides a measurement of Temperature in °C.
Sensor Type
SI Derived
Units
Measurement
0x21
°C
RTD Temperature
5.2.2 RTD Input Data Type/Format
The SP-005 supports extended configuration and provides factory calibration. All data values are returned as 32-bit
floating point values.
RTD Input Data Type
7
6
5
4
3
2
1
0
Smart
Sensor
Sensor
Writeable
Factory
Calibrate
Reserved
Data Type
0
0
?
0
0x06 == FLOAT
5.2.2.1 Data Type
The 4-bit Data Type field determines the type of data of the specific sensor.
5.2.2.2 Factory Calibrate
The Factory Calibrate bit is used during factory calibration. It is a read only bit that applies to specific sensor types. If
set, factory calibration is performed on the raw sensor reading PRIOR to user scaling.
5.2.2.3 Configurable Enable
The Configurable bit indicates that the Sensor Configuration and Sensor Device fields may be overwritten by user
configuration information. If clear, only the Sensor Configuration LOCK bit may be set, allowing the user to overwrite
the Unit of Measure string.
5.2.2.4 Sensor Writeable
If the Sensor Writeable bit is set the sensor value may be overwritten with a preset value. This capability is useful in
sensors such as up/down counters, where a preset, or possibly a zero value must be written to the sensor value.

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5.2.2.5 Smart Sensor
Refer to the Smart Sensor Device Interface documentation.
5.2.3 RTD Configuration
RTD Configuration
7
6
5
4
3
2
1
0
Available
Assigned
Apply
Scaling
Lock
Sensor Type (Range)
0
*
?
?
See Below
5.2.3.1 Sensor Type / Range
Sensor Type
Sensor Input Type (Range)
Measurement Type
0x00
100 Ohm, 385 Curve
0x21
Temperature (°C)
0x01
500 Ohm, 385 Curve
0x21
Temperature (°C)
0x02
1000 Ohm, 385 Curve
0x21
Temperature (°C)
0x03
100 Ohm, 392 Curve
0x21
Temperature (°C)
0x04
100 Ohm, 3916 Curve
0x21
Temperature (°C)
5.2.3.2 Apply Scaling
If set, the user defined Offset and Gain values will be used to adjust the sensor reading:
Result = (Raw Reading * Gain) + Offset
5.2.3.3 Lock
If set, the user specified units of measure string (4-character maximum) will be used in place of the default units of
measure.
5.2.3.4 Assigned
Refer to the Smart Sensor Device Interface documentation.
5.2.3.5 Available
Refer to the Smart Sensor Device Interface documentation.
5.2.4 RTD Input Sensor Device
The Sensor Device field determines the connector signal configuration.
I/O (RTD)
7
6
5
4
3
2
1
0
Description
X
X
X
X
X
X
0
0
Not Available/Used
X
X
X
X
X
X
0
1
2 Wire, configuration
X
X
X
X
X
X
1
0
3 Wire, configuration
X
X
X
X
X
X
1
1
4 Wire, configuration
5.2.5 RTD Input Connector
A (bit 6) Description
M12-4 Connector Pins
1
2
3
4
0x00
Wiring Option #1
S+
P+
P-
S-
0x01
Wiring Option #2
S+
S-
P-
P+

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5.2.6 RTD IPSO Definition
The RTD sensor IPSO definition provides signal range, measured min/max values, IPSO object type information. The
Min / Max range values depend on the type of RTD.
Offset
Name
Value
Description
0x00
Sensor Type
3303
Temperature (°C)
0x02
Precision
1
Provides reading of xxx.x
0x04
Sensor Trigger Function
??
See 4.2.6.1
0x08
Min Measured
??
Minimum reading since last reset
0x0c
Max Measured
??
Maximum reading since last reset
0x10 Min Range
??
Type
Min Range
Max Range
385 / 100 ohm
-200
850
385 / 500 ohm
-200
850
385 / 1000 ohm
-200
850
392 / 100 ohm
-200
660
3916 / 100 ohm
-200
660
0x14 Max Range
5.2.6.1 Sensor Trigger Function
The Sensor Trigger function is used to reset the IPSO min/max values.
Sensor Trigger Function
7
6
5
4
3
2
1
0
0 0 0 0 0 0 0
Reset
Min/Max
15
14
13
12
11
10
9
8
0
0
0
0
0
0
0
0
5.3 Digital Input / Output Interface
The DIO Interface provides 2 digital inputs which are hardwired to the Digital outputs. These may be used to detect the
state of external switches (output off) or to monitor the state of the outputs. The DIO Input descriptor is at base addresses
0x0068.
5.3.1 DIO Descriptor
Offset
Name
Value
Description
0x00
Sensor Type
0x18
Digital Type (Bit mapped)
0x01
Data Type/Format
0x46
Configurable, Float type
0x02
Configuration
0x23
Scaling applied, Bits 0 and 1 enabled
0x03
Sensor Device
0x0f
DIN bits enabled / inverted
0x04..0x08
UOMR
“DIN”
Units of measure
5.3.1.1 DIO Sensor Type
The interface provides a bit mapped input of the 2 digital signal lines.
Sensor Type
SI Derived Units
Measurement
0x18
DIN
Bit mapped digital inputs

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5.3.1.2 DIO Data Type/Format
DIO Data Type
7
6
5
4
3
2
1
0
Smart Sensor
Sensor Writable
Factory Calibrate
reserved
Data Type
0
0
0
0
6 == Floating point
Note: Please refer to the Smart Sensor Interface Technical Guide for more information regarding this descriptor.
5.3.1.3 Data Type
The 4-bit Data Type field determines the type of date of the specific sensor.
5.3.1.4 Factory Calibrate
The Factory Calibrate bit is not used for DIO types.
5.3.1.5 Sensor Writeable
If the Sensor Writeable bit is set the sensor value may be overwritten with a preset value. This capability is useful in
sensors such as up/down counters, where a preset, or possibly a zero value must be written to the sensor value.
5.3.1.6 Smart Sensor
Refer to the Smart Sensor Device Interface documentation.
5.3.2 DIO Input Configuration
DIO Input Configuration
7
6
5
4
3
2
1
0
Available
Assigned
Apply
Scaling
Lock
Sub Channel Selection
0
0
1
?
0x03 == bits 0 and 1
5.3.2.1 Lock
If set, the user specified units of measure string (4-character maximum) will be used in place of the default DIN.
5.3.2.2 Apply Scaling
If set, the user defined Offset and Gain values will be used to adjust the sensor reading:
Result = (Raw Reading * Gain) + Offset
5.3.2.3 Assigned
The Assigned bit will always read as 0. Refer to the Smart Sensor Device Interface documentation for further
information.
5.3.2.4 Available
The Available bit will always read as 0. Refer to the Smart Sensor Device Interface documentation for further
information.

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5.3.3 DIO Device Configuration
The DIO Device Configuration allows enabling each of the 2 input bits and selecting whether the input is active HIGH
or active LOW. If the Invert Bit is set the signal will be Active Low.
DIO Device Configuration
7
6
5
4
3
2
1
0
Reserved
DIN 1
DIN 0
0 0 0 0
ENABLE
INVERT
ENABLE
INVERT
1
1
1
1
5.3.4 DIO IPSO Definition
The DIO input IPSO definition provides signal range, measured min/max values, IPSO object type information. The SP-
010 DIO IPSO definition is at base address 0x08a8.
Offset
Name
Value
Description
0x00
Sensor Type
3349
Bit Mapped Digital
0x02
Precision
0
Provides reading of xxx
0x04
Sensor Trigger Function
??
See section Sensor Trigger Function
0x08
Min Measured
??
Minimum reading since last reset
0x0c
Max Measured
??
Maximum reading since last reset
0x10
Min Range
0
Minimum reading
0x14
Max Range
3
Maximum reading
5.3.4.1 Sensor Trigger Function
The Sensor Trigger function is used to reset the IPSO min/max values.
Sensor Trigger Function
7
6
5
4
3
2
1
0
0 0 0 0 0 0 0
Reset
Min/Max
15
14
13
12
11
10
9
8
0
0
0
0
0
0
0
0