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HMK-Rx
Operating guide
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Danfoss HMK-Rx Operating guide

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User Manual
Plus+1® Compliant
HMK_Rx Function Block
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User Manual
Revision history Table of revisions
Date Changed Rev
April 2019 First edition 0101
2 | © Danfoss | April 2019 AQ299358258194en-000101
User Manual

Contents

HMK_Rx
Overview..............................................................................................................................................................................................4
Inputs....................................................................................................................................................................................................4
Parameters..........................................................................................................................................................................................4
Outputs................................................................................................................................................................................................ 5
Diagnostic Signals............................................................................................................................................................................6
Status Logic........................................................................................................................................................................................ 7
Status Logic...................................................................................................................................................................................7
Instalation............................................................................................................................................................................................8
About the Namespace Feature.............................................................................................................................................. 8
How to Enter a Namespace Value.........................................................................................................................................8
HMK_Rx Service Screens................................................................................................................................................................9
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User Manual

HMK_Rx

Overview

This function block configures the function for use with the HMK and is used to to receive the button status.

Inputs

Entering the HMK_Rx function block gives an overview about the block’s signals.
To avoid compiler errors, use only the data types specified in this table.
Function Block Inputs
Input Type Range Unit Description Chkpt BOOL T/F --
CAN.Port PORT -- -- Determines which physical CAN port of the hardware to receive data from.
Enables advanced checkpoints with namespace for each Diag signal. T: Include checkpoints when compiled F: Do not include checkpoints when compiled
This variable can be found in the CAN sub-bus if using the Main Template.

Parameters

Learn how the function block uses parameters to customize the function.
To avoid compiler errors, use only the data types specified in this table.
Function Block Parameters
Parameter Type Range Unit Description Src_Addr U8 0 to 253 -- Source Address of the HMK.
Timeout U16 10 to 10000 ms Max time in ms between messages before a timeout fault is triggered.
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Outputs

Learn how the outputs of the function block work.
Function Block Outputs
Parameter Type Range Unit Description Status U16 0, 0x8008 --
Button (1 to 16) BOOL T/F --
MsgTimedOut BOOL T/F --
NoMsgReceived BOOL T/F --
Diag BUS -- -- This bus provides diagnostic values for troubleshooting. In addition, all
Updated BOOL T/F -- True during the first programming cycle that new data is received.
This signal indicates if a parameter fault is declared. It’s a bitwise code, so multiple items can be reported at a time. The following status codes are provided: 0x0000: No fault 0x8008: At least one parameter is out of range
Reports the status of the respective button. T: Pressed F: Not Pressed If the SignalName_NA is true, then the signal is not available. The associated signal is set to false. If the SignalName_Flt is true, then a fault condition currently exists for the signal. The associated signal is set to false.
True if the time since the last status message has exceeded the value determined by Timeout. T: The message has timed out, block outputs set to zero/false, Flt signals set true F: No error
No message has been received from the device. T: No message received since power on F: A message has been seen since power on
inputs, parameters, and output signals are contained inside of the bus.
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User Manual
HMK_Rx

Diagnostic Signals

Entering the Checkpoints page on the second level of the function block provides access to the block’s diagnostic signals. It contains checkpoints on input, parameter, output, and internal signals. Only the internal signals are explained below. Input, parameter, and output signals are described in the above chapters.
Function Block Diagnostic Signals
Name Type Range Unit Description CAN_RawData -- -- -- Data passed directly from the CAN receiver.
Btn_Encoded U16 0 to 65535 --
Packed button data. Bitwise code where multiple items can be reported at a time. T: Pressed F: Not pressed Bit 0: Button1 Bit 1: Button2 Bit 2: Button3 Bit 3: Button4 Bit 4: Button5 Bit 5: Button6 Bit 6: Button7 Bit 7: Button8 Bit 8: Button9 Bit 9: Button10 Bit 10: Button 11 Bit 11: Button 12 Bit 12: Button 13 Bit 13: Button 14 Bit 14: Button 15 Bit 15: Button 16
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HMK_Rx
Function Block Diagnostic Signals (continued)
Name Type Range Unit Description BtnNA_Encoded U16 0 to 65535 --
BtnFlt_Encoded U16 0 to 65535 --
Packed button not available data. Bitwise code where multiple items can be reported at a time. T: Signal is not enabled/configured F: Signal is enabled/configured Bit 0: Button1_NA Bit 1: Button2_NA Bit 2: Button3_NA Bit 3: Button4_NA Bit 4: Button5_NA Bit 5: Button6_NA Bit 6: Button7_NA Bit 7: Button8_NA Bit 8: Button9_NA Bit 9: Button10_NA Bit 10: Button11_NA Bit 11: Button12_NA Bit 12: Button13_NA Bit 13: Button14_NA Bit 14: Button 15_NA Bit 15: Button 16_NA
Packed button fault data. Bitwise code where multiple items can be reported at a time. T: Signal is faulted F: Signal is not faulted Bit 0: Button1_Flt Bit 1: Button2_Flt Bit 2: Button3_Flt Bit 3: Button4_Flt Bit 4: Button5_Flt Bit 5: Button6_Flt Bit 6: Button7_Flt Bit 7: Button8_Flt Bit 8: Button9_Fit Bit 9: Button10_Fit Bit 10: Button11_Fit Bit 11: Button12_Fit Bit 12: Button13_Fit Bit 13: Button14_Fit Bit 14: Button15_Fit Bit 15: Button16_Fit

Status Logic

This topic describes how status and fault logic is indicated for the function block.

Status Logic

The status code indicates whether the parameters used in the function are within their valid range.
Status Logic
Condition Hex
Invalid Setup 0x8008 1000 Src_Addr > 253, Timeout < 10, Timeout
*
Bit 16 set to 1 identifies a standard Danfoss status or fault code.
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*
Binary Cause Response Correction
>10000
Status Code Correct Src_Addr or
Timeout value.
User Manual
HMK_Rx

Instalation

Chkpt enables the checkpoints for each Diag Bus Signal. It is pre-connected to a constant True. It only
makes sense to set it to False if you don’t want to use the checkpoints or if you need to free up some memory. Be aware that Fault and Status signal will also disappear from the service screen by this action.

About the Namespace Feature

If you use this function block more than once in an application, you must change each function block’s Namespace value to avoid compiler errors.
This function block contains one or more components that allocate memory using memory names (“aliases”). Identical function blocks have identical memory names. 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.

How to Enter a Namespace Value

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1. In the PLUS+1 GUIDE menu bar, click the Query/Change button.
2. Click the function block’s page name to display the Edit Page window.
3. In the Edit Page window, enter a meaningful Namespace value. Namespace values are case-sensitive.
4. Press the Enter key.
5. Repeat these steps to enter unique Namespace values for other identical function blocks.

HMK_Rx Service Screens

This screen shows a panel for the HMK_Rx Function Block. This panel can be reused in other diagnostic applications.
HMK_Rx Reusable Panel Screen
HMK_Basic_Ctrl Reusable Panel Screen
Item Unit Description Buttons - Btn (1 to 16) --
Source Address -- Source Address of the HMK. Timeout ms Max time in ms between messages before a timeout fault is triggered. Timing – Timed Out --
Timing - NoMsgRcvd --
Status --
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Reports the status of the respective button. T: Pressed F: Not Pressed If the NA is active, then the signal is not available. The associated signal is set to false. If the Flt is active, then a fault condition currently exists for the signal. The associated signal is set to false.
True if the time since the last status message has exceeded the value determined by Timeout. T: The message has timed out, block outputs set to zero/false, Flt signals set true F: No error
No message has been received from the device. T: No message received since power on F: A message has been seen since power on
This signal indicates if a parameter fault is declared. It’s a bitwise code, so multiple items can be reported at a time. The following status codes are provided: 0x0000: No fault 0x8008: At least one parameter is out of range
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