Up/Down Counter Function - ABB AC 31 Technical Manual

5.9. Up/Down counter function

Page 5-42
Programming
The following example shows how to set up the Up/Down counter block VRZ.
The result of the VRZ block may vary from -32768 to 32767. In this example, the outputs
LOW_LIMIT or HIGH_LIMIT are respectively at 1, when the counter arrives at the value 0 or
800.
TRUE
INPUT
OUTPUT
STEP
PRESET
PRESET_VALUE
RESET
CURRENT_RESULT
MAX_800
CURRENT_RESUL
MIN_0
VRZ
FREI
ZV
ZR
DIFF
S
ZW
CURRENT_RESULT
R Z
=?
Z1=?
HIGH_LIMIT
Z2 Q
=?
Z1=?
LOW_LIMIT
Z2 Q
ABB Control - AC 31
1SBC 260400 R1001-b 06.99