Can someone please explain to me how to use a counter in siemens S7. After reading and simulating both the up and down counters in S7, they work totally different compared to counters in allen bradley RSlogix 500-5000. For up counters in S7, once the count is greater than zero the ouput (Q) is engerized. This means the counters does not turn on once the preset value is reached for example if the PV is 10. So how can I use counters in S7 or what's the purpose of using counters because they don't turn Q(output) on once the preset value is reached as in RSlogix 500-5000?