KAMAMT Posted November 30, 2023 Report Share Posted November 30, 2023 Hi all, I'm using a V570 controller. I have a number entry on the HMI to an MI so a user can enter in a value in minutes. The MI is then multiplied by 6000 (to get to 10ms units) and stored to a ML. This ML is then stored to a Timer using the ST PR function block. I then use a TA in my ladder. The preset value of my TA is correctly taking the value stored to it. However, the current value is starting at a completely different value. For example: MI5=60 ML5=360,000 Upon starting, TA5 current = 03:00:00:00 TA5 preset = 01:00:00:00 Now I believe that TA5 used to have a static value of 03:00:00:00 before changing the logic so that it can be changed. I have since changed it's default preset to 00:00:00:00 so it should clear out on power cycle. But for some reason it just keeps starting at 03:00:00:00. Any ideas as to why it would not have its current value starting at its preset value? Link to comment Share on other sites More sharing options...
MVP 2023 Flex727 Posted November 30, 2023 MVP 2023 Report Share Posted November 30, 2023 TA timers need to be Reset manually. They do not reset automatically when power is applied as TD timers do. Put in a reset and your TA5 current will be correct. 1 Link to comment Share on other sites More sharing options...
KAMAMT Posted November 30, 2023 Author Report Share Posted November 30, 2023 8 minutes ago, Flex727 said: TA timers need to be Reset manually. They do not reset automatically when power is applied as TD timers do. Put in a reset and your TA5 current will be correct. Ah! You nailed it. I do have a Reset in my ladder but it's at the bottom of my program and I haven't actually run all the way through completion as I'm going through debugging. I just let it complete a cycle and sure enough it loaded the preset into the current. Thanks! Link to comment Share on other sites More sharing options...
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