User Manual
PLUS+1® GUIDE Software
PLUS+1 Function Block Library—Input
Function Blocks
www.danfoss.com
User Manual
PLUS+1® Compliant Function Block Library—Input Function Blocks
Revision history |
Table of revisions |
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February 2019 |
Updated calibration and deadband images |
0102 |
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February 2019 |
Rebranding |
0101 |
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May 2016 |
Updates for new library version. |
CA |
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March 2011 |
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AB |
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2 | © Danfoss | February 2019 |
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User Manual |
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PLUS+1® Compliant Function Block Library—Input Function Blocks |
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Contents |
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Risk Reduction |
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Design, Test, and Secure to Reduce Risks................................................................................................................................ |
5 |
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Design................................................................................................................................................................................................... |
5 |
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Test......................................................................................................................................................................................................... |
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Secure................................................................................................................................................................................................... |
6 |
FNR_Direction Function Block |
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Inputs.................................................................................................................................................................................................... |
7 |
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Outputs................................................................................................................................................................................................ |
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Function Block Connections......................................................................................................................................................... |
9 |
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Fault Logic........................................................................................................................................................................................... |
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Identical Function Blocks Need Different Namespace Values to Successfully Compile......................................... |
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Change Namespace Value..................................................................................................................................................... |
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IEC 61508-3 Annex D Supplemental Information.............................................................................................................. |
11 |
Multi_Dig_In Function Block |
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Inputs.................................................................................................................................................................................................. |
12 |
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Outputs.............................................................................................................................................................................................. |
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Function Block Connections...................................................................................................................................................... |
14 |
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Status Logic...................................................................................................................................................................................... |
15 |
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Fault Logic........................................................................................................................................................................................ |
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Example 1—Slct is T...................................................................................................................................................................... |
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Example 2—Slct is F...................................................................................................................................................................... |
16 |
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Identical Function Blocks Need Different Namespace Values to Successfully Compile...................................... |
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Change Namespace Value..................................................................................................................................................... |
17 |
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IEC 61508-3 Annex D Supplemental Information.............................................................................................................. |
18 |
Sensor_2Pt Function Block |
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Inputs.................................................................................................................................................................................................. |
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Outputs.............................................................................................................................................................................................. |
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Function Block Connections...................................................................................................................................................... |
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Status Logic...................................................................................................................................................................................... |
22 |
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Fault Logic........................................................................................................................................................................................ |
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Calibration and Fault Values...................................................................................................................................................... |
22 |
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Deadband Values........................................................................................................................................................................... |
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Identical Function Blocks Need Different Namespace Values to Successfully Compile...................................... |
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Change Namespace Value..................................................................................................................................................... |
25 |
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IEC 61508-3 Annex D Supplemental Information.............................................................................................................. |
26 |
Sensor_3Pt Function Block |
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Inputs.................................................................................................................................................................................................. |
27 |
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Outputs.............................................................................................................................................................................................. |
28 |
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Function Block Connections...................................................................................................................................................... |
29 |
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Status Logic...................................................................................................................................................................................... |
30 |
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Fault Logic........................................................................................................................................................................................ |
30 |
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Calibration and Fault Values...................................................................................................................................................... |
30 |
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Deadband Values........................................................................................................................................................................... |
31 |
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Identical Function Blocks Need Different Namespace Values to Successfully Compile...................................... |
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Change Namespace Value..................................................................................................................................................... |
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IEC 61508-3 Annex D Supplemental Information.............................................................................................................. |
34 |
Sensor_2Pt_AC Function Block |
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Inputs.................................................................................................................................................................................................. |
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Outputs.............................................................................................................................................................................................. |
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Configuration Settings................................................................................................................................................................. |
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Function Block Connections...................................................................................................................................................... |
38 |
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Status Logic...................................................................................................................................................................................... |
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Fault Logic........................................................................................................................................................................................ |
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Calibration and Fault Values...................................................................................................................................................... |
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Deadband Values........................................................................................................................................................................... |
40 |
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Calibration Windows.................................................................................................................................................................... |
41 |
© Danfoss | February 2019 |
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User Manual |
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PLUS+1® Compliant Function Block Library—Input Function Blocks |
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Contents |
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Identical Function Blocks Need Different Namespace Values to Successfully Compile...................................... |
42 |
Change Namespace Value..................................................................................................................................................... |
43 |
IEC 61508-3 Annex D Supplemental Information.............................................................................................................. |
44 |
Sensor_3Pt_AC Function Block |
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Inputs.................................................................................................................................................................................................. |
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Outputs.............................................................................................................................................................................................. |
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Configuration Settings................................................................................................................................................................. |
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Function Block Connections...................................................................................................................................................... |
48 |
Status Logic...................................................................................................................................................................................... |
49 |
Fault Logic........................................................................................................................................................................................ |
49 |
Calibration and Fault Values...................................................................................................................................................... |
49 |
Deadband Values........................................................................................................................................................................... |
50 |
Calibration Windows.................................................................................................................................................................... |
51 |
Identical Function Blocks Need Different Namespace Values to Successfully Compile...................................... |
52 |
Change Namespace Value..................................................................................................................................................... |
53 |
IEC 61508-3 Annex D Supplemental Information.............................................................................................................. |
54 |
Freq_to_RPM Function Block |
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Inputs.................................................................................................................................................................................................. |
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Outputs.............................................................................................................................................................................................. |
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Function Block Connections...................................................................................................................................................... |
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Status Logic...................................................................................................................................................................................... |
56 |
Fault Logic........................................................................................................................................................................................ |
56 |
Identical Function Blocks Need Different Namespace Values to Successfully Compile...................................... |
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Change Namespace Value..................................................................................................................................................... |
57 |
IEC 61508-3 Annex D Supplemental Information.............................................................................................................. |
58 |
Freq_to_Speed Function Block |
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Inputs.................................................................................................................................................................................................. |
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Outputs.............................................................................................................................................................................................. |
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Function Block Connections...................................................................................................................................................... |
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Status Logic...................................................................................................................................................................................... |
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Fault Logic........................................................................................................................................................................................ |
62 |
Identical Function Blocks Need Different Namespace Values to Successfully Compile...................................... |
62 |
Change Namespace Value..................................................................................................................................................... |
62 |
IEC 61508-3 Annex D Supplemental Information.............................................................................................................. |
64 |
4 | © Danfoss | February 2019 |
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User Manual
PLUS+1® Compliant Function Block Library—Input Function Blocks
Design, test, and secure applications that you develop to reduce risks of personal injury and equipment damage.
Applications created with PLUS+1® GUIDE typically control equipment such as tractors, cranes, and harvesters.
Using heavy, powerful, and mobile off-road equipment always involves the risk of personal injury and equipment damage, even when this equipment is operating under normal operating conditions. Abnormal operating conditions greatly increase the risk of personal injury and equipment damage.
The PLUS+1® program has no automatic protections against these risks. The tool has no protection against the risks that result from bugs in the tool software, errors in the tool manual, or incompatibilities between software versions of the tool.
You must:
•Design your application to reduce these risks.
•Test your application to reduce these risks.
•Secure your application against unauthorized changes in its operating parameters to reduce these risks.
As you design your application, you must include the fault checking and the error handling needed to reduce risks in normal and abnormal operating conditions.
Consider the following when developing fault checking and error handling for your PLUS+1® GUIDE application:
•How the machine is normally used.
•Possible operator errors and their consequences.
•Industry safety standards and legal requirements.
•Input and output failures and their consequences. These failures can include:
‒Joystick, sensor, and other inputs suddenly going to ±100 % or to 0 %.
‒Joystick, sensor, and other inputs suddenly going to ±100 % or to 0 %.
‒Outputs that control machinery direction, speed, and force suddenly changing direction or going to ±100 % or to 0 %.
Decide how likely each failure is. The more likely a failure, the more you need to protect against the consequences of the failure.
•The sequence of events and consequences of a fault or error.
•The sequence of events and consequences of an emergency stop.
After creating an application, you are responsible for testing the application.
Download your application to hardware and test its operation under both normal and abnormal operating conditions. Make sure:
•Individual inputs produce expected outputs.
•Fault handling and error checking work as designed.
You must repeat your tests when you make configuration, calibration, or software changes to the application.
© Danfoss | February 2019 |
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User Manual
PLUS+1® Compliant Function Block Library—Input Function Blocks
Risk Reduction
You have the responsibility to secure your application against unauthorized changes.
Always use the PLUS+1® GUIDE program’s Toolkey feature to restrict access to your application’s operating parameters.
•Without Toolkey protection, there is an increased risk that unauthorized personnel could use the PLUS+1® Service Tool program to change your application’s operating parameters.
Changes in your application’s operating parameters might cause unexpected machinery movement that results in personal injury and equipment damage.
•Toolkey protection reduces the risk that unauthorized personnel could use the PLUS+1® program to change your application’s operating parameters.
Refer to How to Use the Toolkey to Restrict Service Tool Access to Application Values in the PLUS+1—How-to chapter of the PLUS+1 GUIDE User Manual (Danfoss part 10100824).
6 | © Danfoss | February 2019 |
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User Manual
PLUS+1® Compliant Function Block Library—Input Function Blocks
The FNR_Direction block provides interlock logic to prevent output commands when changing directions before coming to a complete stop.
Typical uses include:
•Protecting hardware on machines from damage caused by abrupt changes in direction under heavy load.
•Detecting faults on directional switches.
The inputs to the FNR_Direction function block are described.
Use only the data types specified in this table. Other data types cause compiler errors.
Item |
Type |
Range |
Description |
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ChkPt |
BOOL |
—— |
• True—include the function block’s built-in Advanced Checkpoint with Namespace in the compiled |
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LHX download file. |
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• False—exclude the function block’s built-in Advanced Checkpoint with Namespace components |
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from the compiled LHX download file. |
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Fwd Sw |
BOOL |
—— |
Forward switch—input signal indicating that the desired direction is forward. |
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Rvs Sw |
BOOL |
—— |
Reverse switch—input signal indicating that the desired direction is reverse. |
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Fdbk |
S32 |
-2147483648– |
Feedback—input signal indicating the actual direction of movement. The magnitude of the signal is |
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2147483647 |
not used. |
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Fdbk < 0—reverse |
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Fdbk = 0—neutral |
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Fdbk > 0—forward |
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The outputs of the FNR_Direction function block are described.
Item |
Type |
Range |
Description |
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IO |
Bus |
—— |
Outputs a bus with all of the function block's input and output signals. |
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This bus provides a convenient way to distribute this function block's signals to your application. |
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Fault |
U16 |
—— |
Reports the faults of the function block. |
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This output follows the standard bitwise scheme described in the Status Logic topic. |
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User Manual
PLUS+1® Compliant Function Block Library—Input Function Blocks
FNR_Direction Function Block
Item |
Type |
Range |
Description |
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Dir |
S16 |
-1–1 |
Current output direction. This value is only allowed to change if the Fdbk= 0 or its value is the same |
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sign as the desired direction. |
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-1 = Reverse |
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0 |
= Neutral |
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1 |
= Forward |
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Drv Enbl |
BOOL |
—— |
Drive enable—this signal can be used to provide an interlock for an application’s propel command or |
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work function. |
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8 | © Danfoss | February 2019 |
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User Manual
PLUS+1® Compliant Function Block Library—Input Function Blocks
FNR_Direction Function Block
Connections you can make with the function block are described.
Item |
Description |
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1 |
• True—include the function block’s built-in Advanced Checkpoint with Namespace in the compiled LHX download file. |
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• False—exclude the function block’s built-in Advanced Checkpoint with Namespace components from the compiled LHX download file. |
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2 |
Forward Switch Input |
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3 |
Reverse Switch Input |
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4 |
Signed feedback signal from speed sensor, indicating direction. |
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5 |
Outputs a bus with all of the function block's input and output signals. |
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6 |
Reports the faults of the function block. |
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7 |
Output direction command. |
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8 |
Drive enable signal to be used as part of an application propel or work function interlock. |
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This topic describes how fault logic is indicated for the function block.
Condition |
Hex* |
Binary |
Cause |
Response |
Correction |
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Invalid input |
0x8040 |
01000 |
Both Fwd Sw and Rvs Sw are |
• |
Drive En = False |
Ensure system design only allows |
combination |
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000 |
true at the same time. |
at most one direction input to be |
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• |
Dir = 0 |
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true at any time. |
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* Bit 16 set to 1 identifies a standard Danfoss status or fault code.
If you use the same function block more than once in an application, you must change each function block’s namespace value to avoid compiler errors.
All function blocks contain Advanced Checkpoint with Namespace components that enable the PLUS+1® Service Tool to read block input and output values.
Some function blocks contain non-volatile memory components that store function block operating parameters.
Both these components use memory names (“aliases”) to allocate memory. Identical memory names cause compiler errors.
© Danfoss | February 2019 |
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User Manual
PLUS+1® Compliant Function Block Library—Input Function Blocks
FNR_Direction Function Block
The namespace value adds a unique prefix to each component name to avoid errors. Keep each namespace value short to save controller memory.
To successfully compile your application, change the namespace value for function blocks that are used more than once in an application.
1.In the PLUS+1® GUIDE menu bar, click the Query/Change button.
2.Click on the function block whose namespace you want to set to a unique value. The Edit Page window opens.
3.In the Edit Page window, enter a meaningful Namespace value.
•Namespace values are case-sensitive.
•To save controller memory, use a short namespace value.
4.Press Enter.
5.Repeat these steps to enter unique namespace values for other identical function blocks.
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PLUS+1® Compliant Function Block Library—Input Function Blocks
FNR_Direction Function Block
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The following table provides IEC 61508-3 Annex D supplemental information. |
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Item |
Description |
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Function block name |
FNR_Direction |
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Function block version |
4.0. |
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Function block development |
PLUS+1® GUIDE version 8.1 and later. |
environment |
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Compatible hardware |
Verified in the PLUS+1® GUIDE compile process. |
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When the PLUS+1® GUIDE compiler finds a function block that is incompatible with hardware, it aborts the compile |
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process and logs an error message. The error message gives the location of the function block and states “Error 80: |
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component not supported in hwd.” |
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Function block developed in |
Danfoss Software Product Development Process (PDP), which includes ISO 9001 and IEC 61508-3 standards. |
compliance with |
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Competence required of |
The knowledge, competence, and training required to: |
function block integrator |
• Understand this manual. |
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• Use the PLUS+1® GUIDE program to develop a machine control application. |
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• Follow quality software practices to develop a machine control application. |
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Contacting Danfoss |
https://www.danfoss.com/en/products/software/dps/plus1-software-services-support-and-training/plus1-support-and- |
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services |
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© Danfoss | February 2019 |
11062082 | AQ00000274en-000102 | 11 |
User Manual
PLUS+1® Compliant Function Block Library—Input Function Blocks
The Multi_Dig_In block converts an analog voltage signal applied to its Input into several Dig output signals.
Typical uses for this function block include:
•Reading the status of a multi-position sensor switch.
•Reading the position of HMI switches on a dashboard control.
The inputs to the Multi_Dig_In function block are described.
Use only the data types specified in this table. Other data types cause compiler errors.
Item |
Type |
Range |
Description |
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ChkPt |
BOOL |
—— |
• True—include the function block’s built-in Advanced Checkpoint with Namespace in the compiled |
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LHX download file. |
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• False—exclude the function block’s built-in Advanced Checkpoint with Namespace components |
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from the compiled LHX download file. |
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Dig In (Nmbr) |
U8 |
1–8 |
Sets the number of active Dig outputs and the activation point for each Dig output. |
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determines the interval between Dig output activation points. |
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The block distributes activation points evenly across the Range. |
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Grd Bnd (mV) |
U16 |
0–Rnge/(1+Dig In) |
When Slct (Select) is T ,the Grd Bnd (Guard Band) value sets the width of a guard band that centers on |
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the activation point for each Dig output. |
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1000 = 1000 (no scaling applied) |
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When Slct is F, the Grd Bnd value sets the width of a guard band that extends above the activation |
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point for each Dig output. |
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1000 = 100 (10.00% scaling applied) |
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12 | © Danfoss | February 2019 |
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User Manual
PLUS+1® Compliant Function Block Library—Input Function Blocks
Multi_Dig_In Function Block
Item |
Type |
Range |
Description |
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Select |
BOOL |
—— |
When Select is T, the block enables just one Dig output at a time. |
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An Input signal in the guard band of a Dig output sets its output T. A T output adds hysteresis bands to |
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both sides of the output’s guard band. (Each hysteresis band is equal to 10% of the guard band’s |
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width.) |
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A T Dig output goes F when the Input signal moves outside of the hysteresis bands. |
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When Select is F, the block sequentially enables Digoutputs. |
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An Inputsignal above the guard band of a Dig output sets its output T. A T Dig output goes F when the |
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Input signal drops below its guard band. |
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Rnge (mV) |
U16 |
0–40000 |
Range of Input over which the block operates. |
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Offset (mV) |
U16 |
0–40000 |
Adjusts the center voltage calculation for each activation point. The Offset value moves each range up |
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by that amount. |
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10 = 10 mV |
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Input |
U16 |
0 to (Rnge + |
Signal from the sensor or HMI device. Changes in this input’s value switch the Dig outputs between T |
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Offset) |
and F. |
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10 = 10 mV |
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The outputs of the Multi_Dig_In function block are described. |
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Item |
Type |
Range |
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Description |
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IO |
Bus |
—— |
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Outputs a bus with all of the function block's input and output signals. |
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This bus provides a convenient way to distribute this function block's signals to your application. |
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Status |
U16 |
—— |
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Reports the status of the function block. |
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This output follows the standard bitwise scheme described in the Status Logic topic. |
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Fault |
U16 |
—— |
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Reports the faults of the function block. |
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This output follows the standard bitwise scheme described in the Status Logic topic. |
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Dig 1 |
BOOL |
—— |
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Interpreted input state for the lowest digital range. |
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Dig 2 |
BOOL |
—— |
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Interpreted input state for digital range 2. |
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Dig 3 |
BOOL |
—— |
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Interpreted input state for digital range 3. |
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Dig 4 |
BOOL |
—— |
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Interpreted input state for digital range 4. |
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Dig 5 |
BOOL |
—— |
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Interpreted input state for digital range 5. |
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Dig 6 |
BOOL |
—— |
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Interpreted input state for digital range 6. |
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Dig 7 |
BOOL |
—— |
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Interpreted input state for digital range 7. |
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Dig 8 |
BOOL |
—— |
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Interpreted input state for digital range 8. |
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© Danfoss | February 2019 |
11062082 | AQ00000274en-000102 | 13 |
User Manual
PLUS+1® Compliant Function Block Library—Input Function Blocks
Multi_Dig_In Function Block
Connections you can make with the function block are described.
Item |
Description |
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1 |
• True—include the function block’s built-in Advanced Checkpoint with Namespace in the compiled LHX download file. |
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• False—exclude the function block’s built-in Advanced Checkpoint with Namespace components from the compiled LHX download file. |
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2 |
Number of digital inputs to be interpreted. |
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3 |
Sets the range around or above each switch point. |
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4 |
Sets the input mode type. When true, only one Dig output is true at a time. When false, all Dig outputs at or below the Input switch point are |
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true.. |
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5 |
Indicates the expected range of Input from the lowest to highest switch point. |
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6 |
Indicates the shift of the Input signal above 0. |
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7 |
Signal from the sensor representing digital input states. |
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8 |
Outputs a bus with all of the function block's input and output signals. |
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9 |
Reports the status of the function block. |
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10 |
Reports the faults of the function block. |
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11to |
Digital input states interpreted from the Input. |
18 |
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14 | © Danfoss | February 2019 |
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User Manual
PLUS+1® Compliant Function Block Library—Input Function Blocks
Multi_Dig_In Function Block
This topic describes how status logic is indicated for the function block.
Condition |
Hex* |
Binary |
Cause |
Response |
Correction |
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Dig In, Grd Bnd, Rnge and/or |
Output signal is calculated using |
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Offset parameters out of range |
the parameters clamped to their |
Review function inputs to ensure |
Invalid configuration |
0x8008 |
1000 |
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respective ranges. |
they are within their valid |
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The Grd Bnd is larger than the |
The Grd Bnd is limited to the |
ranges.. |
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calculated digital interval size. |
calculated digital interval size. |
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* Bit 16 set to 1 identifies a standard Danfoss status or fault code.
This topic describes how fault logic is indicated for the function block.
Condition |
Hex* |
Binary |
Cause |
Response |
Correction |
Input value is too low. |
0x8001 |
0001 |
Input value below zero. |
Output signals are based on |
Ensure Input is within the valid |
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Input = 0. |
range. |
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Input value is too high. |
0x8002 |
0010 |
Input value above (Rnge + |
Output signals are based on |
Ensure Input is within the valid |
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Offset). |
range. Ensure Rnge and Offset |
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Input = (Rnge + Offset). |
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are correct. |
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* Bit 16 set to 1 identifies a standard Danfoss status or fault code.
© Danfoss | February 2019 |
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User Manual
PLUS+1® Compliant Function Block Library—Input Function Blocks
Multi_Dig_In Function Block
If you use the same function block more than once in an application, you must change each function block’s namespace value to avoid compiler errors.
All function blocks contain Advanced Checkpoint with Namespace components that enable the PLUS+1® Service Tool to read block input and output values.
Some function blocks contain non-volatile memory components that store function block operating parameters.
Both these components use memory names (“aliases”) to allocate memory. Identical memory names cause compiler errors.
The namespace value adds a unique prefix to each component name to avoid errors. Keep each namespace value short to save controller memory.
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User Manual
PLUS+1® Compliant Function Block Library—Input Function Blocks
Multi_Dig_In Function Block
To successfully compile your application, change the namespace value for function blocks that are used more than once in an application.
1.In the PLUS+1® GUIDE menu bar, click the Query/Change button.
2.Click on the function block whose namespace you want to set to a unique value. The Edit Page window opens.
3.In the Edit Page window, enter a meaningful Namespace value.
•Namespace values are case-sensitive.
•To save controller memory, use a short namespace value.
4.Press Enter.
5.Repeat these steps to enter unique namespace values for other identical function blocks.
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User Manual
PLUS+1® Compliant Function Block Library—Input Function Blocks
Multi_Dig_In Function Block
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The following table provides IEC 61508-3 Annex D supplemental information. |
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Item |
Description |
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Function block name |
Multi_Dig_In. |
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Function block version |
4.0. |
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Function block development |
PLUS+1® GUIDE version 8.1 and later. |
environment |
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Compatible hardware |
Verified in the PLUS+1® GUIDE compile process. |
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When the PLUS+1® GUIDE compiler finds a function block that is incompatible with hardware, it aborts the compile |
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process and logs an error message. The error message gives the location of the function block and states “Error 80: |
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component not supported in hwd.” |
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Function block developed in |
Danfoss Software Product Development Process (PDP), which includes ISO 9001 and IEC 61508-3 standards. |
compliance with |
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Competence required of |
The knowledge, competence, and training required to: |
function block integrator |
• Understand this manual. |
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• Use the PLUS+1® GUIDE program to develop a machine control application. |
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• Follow quality software practices to develop a machine control application. |
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Contacting Danfoss |
https://www.danfoss.com/en/products/software/dps/plus1-software-services-support-and-training/plus1-support-and- |
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services |
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User Manual
PLUS+1® Compliant Function Block Library—Input Function Blocks
The Sensor_2Pt block converts a raw signal from a sensor into a percentage output.
The percentage output is based on the signal characteristics of the sensor. This block scales its Output between 0% and +100%.
Typical uses for this function block include:
•Reading analog sensors where piece–to-piece variation is negligible for the required accuracy of the signal.
•Implementing an alternative sensor calibration algorithm and using this block for the scaling and fault detection functions.
•Reading max speed potentiometers, trim steer potentiometers, and fuel level sensors.
The inputs to the Sensor_2Pt function block are described.
Use only the data types specified in this table. Other data types cause compiler errors.
Item |
Type |
Range |
Description |
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ChkPt |
BOOL |
—— |
• True—include the function block’s built-in Advanced Checkpoint with Namespace in the compiled |
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LHX download file. |
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• False—exclude the function block’s built-in Advanced Checkpoint with Namespace components |
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from the compiled LHX download file. |
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Fault % |
U16 |
0–10000 |
The Input is allowed to go above the Hi Cal % and below the Lo Cal % by a calculated allowable fault |
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value. The fault value is the Fault % of the calibrated input range. |
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1000 = 10.00% |
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Hi DBnd % |
U16 |
0–5000 |
Hi DBnd % (High Deadband Percent) defines the deadband region for the sensor’s upper limit. |
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Increasing the deadband value decreases the sensor’s resolution while reducing the deadband narrows |
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the margin for acceptable input noise and sensor variation. |
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1000 = 10.00% |
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Lo DBnd % |
U16 |
0–5000 |
Lo DBnd % (Low Deadband Percent) defines the deadband region for the sensor’s lower limit. |
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Increasing the deadband value decreases the sensor’s resolution while reducing the deadband narrows |
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the margin for acceptable input noise and sensor variation. |
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1000 = 10.00% |
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Hi Cal % |
U16 |
0–10000 |
Hi Cal % (High Calibration Percent) defines the upper limit of the sensor’s signal in terms of the sensor’s |
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supply voltage. |
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This is a percentage of Snsr Pwr. |
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1000 = 10.00% |
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User Manual
PLUS+1® Compliant Function Block Library—Input Function Blocks
Sensor_2Pt Function Block
Item |
Type |
Range |
Description |
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Lo Cal % |
U16 |
0–10000 |
Lo Cal % (Low Calibration Percent) defines the lower limit of the sensor’s signal in terms of the sensor’s |
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supply voltage. |
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This is a percentage of Snsr Pwr. |
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1000 = 10.00% |
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Snsr Pwr |
U16 |
0–65535 |
Snsr Pwr (Sensor Power) defines the reference for ratiometric calculations. If a sensor is ratiometric, the |
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function block’s Output signal is continually compensated for variation in the supply. If the sensor is |
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not ratiometric, connect a constant value representing the full scale signal range. |
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Input |
U16 |
0–65535 |
Signal from the sensor. The units of this signal must be the same units for Snsr Pwr. |
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The outputs of the Sensor_2Pt function block are described. |
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Item |
Type |
Range |
Description |
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IO |
Bus |
—— |
Outputs a bus with all of the function block's input and output signals. |
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This bus provides a convenient way to distribute this function block's signals to your application. |
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Status |
U16 |
—— |
Reports the status of the function block. |
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This output follows the standard bitwise scheme described in the Status Logic topic. |
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Fault |
U16 |
—— |
Reports the faults of the function block. |
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This output follows the standard bitwise scheme described in the Status Logic topic. |
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Output |
U16 |
0–10000 |
Percent of Input applied to the sensor’s calibrated range. |
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1000 = 10.00% |
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User Manual
PLUS+1® Compliant Function Block Library—Input Function Blocks
Sensor_2Pt Function Block
Connections you can make with the function block are described.
Item |
Description |
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1 |
• True—include the function block’s built-in Advanced Checkpoint with Namespace in the compiled LHX download file. |
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• False—exclude the function block’s built-in Advanced Checkpoint with Namespace components from the compiled LHX download file. |
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2 |
Deviation below and above the calibration point allowed before reporting an input fault condition. |
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3 |
Defines the size of the deadband region at the high calibration point. Within this region the output is 10000 (100%). |
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4 |
Defines the size of the deadband region at the low calibration point. Within this region the output is 0 (0%). |
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5 |
Sets the high end of the sensor’s nominal Input signal range as a percent of Snsr Pwr. |
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6 |
Sets the low end of the sensor’s nominal Input signal range as a percent of Snsr Pwr. |
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7 |
Used to monitor the sensor’s power supply to make ratiometric adjustments within the function block. |
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8 |
Signal indicating the position of the sensor. |
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9 |
Outputs a bus with all of the function block's input and output signals. |
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10 |
Reports the status of the function block. |
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11 |
Reports the faults of the function block. |
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12 |
Position indicator of the sensor as a percent of its calibration range. |
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