High Speed Counter Plc
There are seven 7 different modes of operation for the high speed counter available so adaption to your automation solution is easy.
High speed counter plc. Up counter ctu down counter ctd up down counter ctud basics of counting in a plc. High speed counter module user s manual qd62 qd62e qd62d gx configurator ct sw0d5c qctu e a 1 a 1 safety precautions read these precautions before using this product before using this product please read this manual and the relevant manuals carefully and pay full. That is 100 000 pulses per second. These 21 counters are all 32 bit up down counters see table 3 7.
The hsc command is used for counting where timed instances are very short and a regular ctu or ctd will not do. High speed counter hsc the high speed counter is a variation of the ctu counter. A common use for a highs speed counter is an encoder that one would use in application to measure or monitor speed usually of a motor and or for positioning. Best way to learn about high speed counter is to download an application example from siemens site and have a look at it there are plenty of them.
Before you start counting in any plc program there are some basics you should know first. These are basic information about the counter instructions and the plc itself. The hsc instruction is enabled when the rung logic is true and disabled when the rung logic is false. Maximum speed on the high speed counter inputs are 100 khz.
Basics of counting in a plc.