ABB AC 31 - 5.9. Up;Down counter function

Programming
Page 5-42 ABB Control - AC 31
1SBC 260400 R1001-b 06.99
5.9. Up/Down counter function
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.
VRZ
FREI
ZV
ZR
DIFF
S
ZW
RZ
INPUT
OUTPUT
STEP
PRESET
RESET
CURRENT_RESULT
=?
Z1= ?
Z2 Q
CURRENT_RESULT
MAX_800 HIGH_LIMIT
PRESET_VALUE
=?
Z1= ?
Z2 Q
CURRENT_RESUL
MIN_0
TRUE
LOW_LIMIT