Omron H8GN - V1.02 Manual page 20

■ Operating Mode
Input/Output Modes and Count Values
Input UP
CP1: Count input
edge
Count
DOWN CP1: Count input
Count
Up/Down B Individual input (ud-b)
Count
Note: 1. (A) indicates the minimum signal width and (B) requires at least 1/2 the minimum signal width. If these conditions are not met, a counting
error (+1 or 1) may occur.
2. The following table explains the L and H symbols in the above graphics.
Symbol
H Short-circuited
L Open
C-78
Preset Counter/Timer
Up (Increment) mode (up)
CP2: Count prohibit input
Count
prohibit
CP2: Count prohibit input
Count
prohibit
Input
H8GN
Down (Decrement) mode (down)
CP1: Count input CP2: Count prohibit input
n
n-1
n-2
Count
CP1: Count input CP2: Count prohibit input
n
n-1
Count
Up/Down C quadrature input (ud-c)
Count
Count
prohibit
n-3
n-4
n-5
Count
prohibit
n-2
n-3
n-4
n-5