User Manual

Siemens Building Technologies PROFIBUS DP/P-bus link
Building Automation User's guide 4-13
4.2.8 Counter modules
The PTM1.2C module has two independent counters each with a 7-bit value combined to a
word. When using this module, note that the counter is a cyclical counter and that it cannot be
reset.
Type Input word
PTM1.2C 0 1C6 1C5 1C4 1C3 1C2 1C1 1C0 0 2C6 2C5 2C4 2C3 2C2 2C1 2C0
1Cx Input bit information for Counter 1
2Cx Input bit information for Counter 2