Instruction manual

Introduction
38
890USE18300 September 2003
The logical output string assigned to the falling-edge counter output (item 5 above)
is in_cmpr. The logical output from the first block is used as the operational input to
the second block, as shown in the following illustration:
Action no. 2 is an unsigned less-than-threshold compare block. Item 6 shows that
the operational input to the compare block is cntr_cmp, the logical output from action
no. 1. The action module (item 7 above) for the less-than-threshold compare block
is the STB DDO 3230 digital output module at island bus address 2—the same
action module as the one for the falling-edge counter.
1
6
1
7
R1