Owner's manual

70 Rockwell Automation Publication 1756-UM536A-EN-P - April 2012

Appendix B Tag Definitions

Configuration Tags

The configuration tags in Table 5 on p a g e 71 define the module’s configuration.

IMPORTANT

The Counter[x].CountDown output tag is active only if the Up/Down Count

function is not tied to Counter[x] via a hardware input. If a hardware input is

tied to Counter[x], the hardware input overrides the value of the

Counter[x].CountDown output tag.

IMPORTANT

Either the Count Enable hardware input or the corresponding bit in the

Counter[x]DisableCount output tag can determine whether counting is

enabled or disabled.

Counting is enabled under the following conditions:

• Counter[x].CountEnTieToPt configuration tag = -1 (no tie) or 0…7 and the

corresponding hardware input is non-inverted and high or inverted and

low (level-sensitive)

and

• Counter[x]DisableCount output tag = 0 (level-sensitive)

Counting is disabled under these conditions:

• Counter[x].CountEnTieToPt configuration tag = 0…7 and the

corresponding hardware input is non-inverted and low or inverted and

high (level-sensitive)

• Counter[x]DisableCount output tag = 1 (level-sensitive)

IMPORTANT

Either the Reset Count hardware input or the corresponding bit in the

Counter[x]ResetCount output tag can determine whether the count is reset.

Counting is reset to zero under the following conditions:

• Counter[x].ResetTieToPt configuration tag = 0…7 (rising edge-sensitive)

• Counter[x]ResetCount output tag = 1 (rising edge-sensitive)

IMPORTANT

Either the Preset Count hardware input or the corresponding bit in the

Counter[x]PresetCount output tag can determine whether the count is preset.

The count is preset to the Counter[x].Preset value under the following

conditions:

• Counter[x].PresetTieToPt configuration tag = 0…7 (rising edge-sensitive)

• Counter[x]PresetCount output tag = 1 (rising edge-sensitive)