Topics

91

Support Questions / Event Log

« on: October 27, 2014, 09:31:03 AM »

Hi All.  I am trying to access an event log in a control panel.  This panel keeps the log stored and I can access it via modbus.  It requires me to write to a register to request the event number i want and the value is returned by another register.  So say I want event 2 then i write a value 2 to register 1 and the value is returned in register 2.  The problem is all values are returned in register 2 so to get more than one event i would need to constantly cycle the value of register 1 between 1 and 99 for all events. I have found that not writing to the panel returns me event 1 always, so I thought it may be best to avoid writing to the register 1 all together and using code "on data change" of a datasubscriber and then if the value of register 2 changes then a different event must be present.  i just need to know how to keep shifting the events i already have read down a line on my event list.  So event 1 is now event 2, replaced by new event read in register2.  Any help is greatly appreciated, thanks.   

92

Support Questions / Changing colors by bit

« on: October 04, 2014, 07:32:31 PM »

Hello,I am new to Vb and Advanced HMI.  I work with electrical distribution equipment and want to build a project where i can animate a line that represents a busbar with different colors depending on the source of power that is feeding it.  For example utility power is green, generator power is red etc.  I can read modbus bits that tell me what source the bus bar is connected to but how do I change colors depending on register bits?  Also does anyone know of a free software that allows me to create graphics for this purpose.  right now I am using microsoft paint, but that is very cumbersome.  Thanks for the help.