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Post From: Historica Data vs. Real Time Update from Different Sources

[2013-05-12 23:54:42]
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drywater0 - Posts: 85
I'm new to Sierra Charts and have been impressed with the platform. I'm considering moving from TradeStation, which is a closed ecosystem where the software, data feed, and execution are combined. I've spent a lot of time navigating the online documentation regarding data feeds but need further advice.

For the moment I plan to use the IB data feed for real time information during the trading day. However, their lack of bid-ask volume is problematic for TPO and Volume by Price studies. I have historical intraday bid-ask volume for futures and forex from the SC Real Time feed and would like to "connect" it to the IB feed so that I have continuity in my charts. I tried to use the Alternate Real-Time Update Symbol under Chart Settings, but it doesn't seem to work completely. What I mean by this is that the price is updating on the price axis but the red arrow to indicate current price is NOT moving and additional TPO letters and volume bars are NOT being drawn.

http://www.sierrachart.com/image.php?l=1368401612650.png

As you can see in chart above, the current price is 102.057 for USDJPY but the red arrow on TPO Profile Chart is stuck at 101.77 as indicated on the fourth row of letters from the bottom of the TPO profile. Although I had the chart running for 15 mintues and set the TPO Letter/BlockTime Period Length to 1 minute, the TPO and Volume bars have not been updating.

I encountered the same issue on a standard 1 minute bar chart. Once again, the price updates on the axis but new bars are not being drawn.

http://www.sierrachart.com/image.php?l=136840253545.png

As seen in the attached chart above, current price has updated to 102.022 but new bars are not being drawn.

This is my first request to the Support Board. Many of my questions and issues were solved by reading the documentation section, but I have been unable to find a solution for this particular problem. Many thanks in advance for your help.