ABB ACSM1 Firmware Manual page 329

TOF
(10058)
Illustration
Execution time
Operation
Inputs
Outputs
TON
(10059)
Illustration
Execution time
1.10 µs
The output (Q) is set to 1, when the input (IN) is set to 1. The output is reset to zero
when the input has been 0 for a time defined by the pulse time input (PT).
Elapsed time count (ET) starts when the input is set to 0 and stops when the input is set
to 1.
Example:
IN
ET
Q
PT
Input (IN): Boolean
Pulse time input (PT): DINT (1 = 1 µs)
Elapsed time output (ET): DINT (1 = 1 µs)
Output (Q): Boolean
1.22 µs
ET ET
PT
329
Standard function blocks