Modbus visualization:
For Modbus you need a daemon that reads Modbus signals cyclically into a shared memory.
Also the daemon provides a Mailbox for outputting messages to the Modbus.
In order to create this daemon do the following.
Load your project
Choose Daemon->Modbus
Per default the INI file is set to Modbus communication over TCP/IP (socket)
Input tcpadr and tcpport
For every data you want to read from Modbus input a cycle as shown in the example
slave= Modbus address
function= as shown in the INI file
start_adr= start_adr within the Modbus slave
num_registers= how may registers have to be transfered over Modbus
When you are finished with the INI file, click "Compile" and then "Close"
The daemon will be created and stored in modbusdaemon.*
Refer to "Help" for instructions howto run the daemon in background
Now that you have created your Modbus daemon you have todo something in your ProcessViewServer.
Click Project and uncomment rllib in the project file:
unix:LIBS += /usr/lib/librllib.so
unix:INCLUDEPATH += /usr/local/include/rllib
win32:LIBS += $(RLLIBDIR)\rllib.lib
win32:INCLUDEPATH += $(RLLIBDIR)
Click Main and uncomment:
rlModbusClient modbus(modbusdaemon_MAILBOX,modbusdaemon_SHARED_MEMORY,modbusdaemon_SHARED_MEMORY_SIZE);
Click Header and uncomment:
#include "rlmodbusclient.h" // this is from rllib
#include "modbusdaemon.h" // this is generated
Click into your Mask and uncomment (at top of file):
extern rlModbusClient modbus;
Now you can display Modbus signals within your mask.
Click Mask. And then RadioButton "showData"
Uncommend the variable "val"
Position the cursor under:
// (todo: add your code here)
Click "Insert Function(...)"
Choose a function from rlModbusClient
Now the variable "val" contains your Modbus signal. You have to display it.
Click "Widget Name" in the toolbox on the left side of the window.
Right click on the signal you want to use for displaying a Modbus value.
Choose function and click "insert"
In case you output to a Table you have to input x,y
In case you output to a ListView you have to input the path
In order to compile and link your ProcessViewServer click "Action->make"