Saulo35
Member
Hi,
I am working with a Micrologix 1400 and Panelview Component 600. I created a screen on the PVC that allows the user to select a time of the day and indicate if a certain action should start at that time. The selected hour and minute are sent to the PLC. PLC logic compares the selected hour and minute with its internal Real Time Clock (RTC) and triggers the action at the appropriate time.
Now, the user should be able to set the PVC's SystemClock date/time and have it sent to the PLC (synchronization). To do this, the PVC's SystemClock tags should write to certain PLC integer words, which in turn can be copied to the PLC's RTC Function File using the CPW instruction.
The problem is, the only way I found to write the SystemClock tags to the PLC is by means of Global Connections, and Global Connections update every 60 s at the most. Therefore, when I make a change to the PVC SystemClock, it may take up to a minute to update the PLC integer words.
I know I am missing something...but what?
Thank you
I am working with a Micrologix 1400 and Panelview Component 600. I created a screen on the PVC that allows the user to select a time of the day and indicate if a certain action should start at that time. The selected hour and minute are sent to the PLC. PLC logic compares the selected hour and minute with its internal Real Time Clock (RTC) and triggers the action at the appropriate time.
Now, the user should be able to set the PVC's SystemClock date/time and have it sent to the PLC (synchronization). To do this, the PVC's SystemClock tags should write to certain PLC integer words, which in turn can be copied to the PLC's RTC Function File using the CPW instruction.
The problem is, the only way I found to write the SystemClock tags to the PLC is by means of Global Connections, and Global Connections update every 60 s at the most. Therefore, when I make a change to the PVC SystemClock, it may take up to a minute to update the PLC integer words.
I know I am missing something...but what?
Thank you