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--- comfilehmi:hmieditor_address:index [2019/01/09 13:37]
COMFILE Technology [Data Types for Word Addresses]
+++ comfilehmi:hmieditor_address:index [2022/04/22 12:50] (current)
COMFILE Technology [Data Types for Word Addresses]
@@ Line 1: / Line 1: @@
+====== Device Addressing ======
+In this section //device// refers to the PLC or MCU that is connected to the ComfileHMI hardware.
+The ComfileHMI needs to know the address of the device in order to communicate with it.
+In each widget's property page, the device's address space can be configured.
+{{ :comfilehmi:hmieditor_address:device_address.png?nolink |}}
+Pressing the //..// button will open the following window where device and device address can be bound to the widget.
+{{ :comfilehmi:hmieditor_address:addressinput.png?nolink |}}
+The address value must expressed in the format ''DeviceID:Address''.
+  * **If the address is left blank, there will be no communication with the device**
+===== Data Types for Word Addresses =====
+Word Addresses can be used to read/write data 16-bit signed and unsigned integers, 32-bit signed and unsigned integers, and 32-bit floating point values.
+{{ :comfilehmi:hmieditor_address:datatypes.png?nolink |}}
+The following code can be used in CUBLOC devices to store floating point values in the Modbus registers.  The example below stores the floating point value //Value// into the two adjacent 16-bit registers //D0// and //D1//.
+<code xbasic>
+#include "MSB6XX"
+Opencom 1,115200,3,1024,1024
+Set Modbus 1,1,20
+Set Ladder On
+Dim Value As Single
+Value = 3.14
+Dim Bytes As Long
+Bytes = 0
+Do
+   Value = Value + 0.01
+   Debug Fp(Value, 3, 2), Cr
+   ' Store floating point Value To D0 And D1
+   Bytes = Peek(Memadr(Value), 4)
+   _D(0) = Bytes.Word0
+   _D(1) = Bytes.Word1
+   Delay 1000
+Loop
+</code>
+The example below demonstrates how to convert two adjacent 16-bit registers, //D0// and //D1//, back to a floating point value
+<code xbasic>
+' Load Bytes with the raw byte data of D0 and D1
+Bytes.Word0 = _D(0)
+Bytes.Word1 = _D(1)
+' Load Value with the raw byte data stored in Bytes
+Poke Memadr(Value), Bytes, 4
+</code>
+===== Address Offset =====
+An offset can be added to an address in the form of an [[:comfilehmi:hmieditor_susik:index|expression]] to have the address dynamically computed.
+{{ :comfilehmi:hmieditor_address:offset1.png }}
+{{ :comfilehmi:hmieditor_address:offset2.png }}
+[[comfilehmi:index#screens| Back to ComfileHMI]]

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