Fig. 20: Arrangement of the 16 digital inputs
The digital input states are always indicated by the LEDs DI0-DI15:
Fig. 21: DA501 LED status indication
Characteristics of the digital inputs:
● All 16 inputs have the same potential ZP as all other inputs/outputs. The electrical isolation
included in the existing devices is no longer available.
● Input delay (0->1 or 1->0): Typically 0.1 ms, configurable from 0.1 to 32 ms.
The signal coupling of the input signals is no longer realized via optocoupler. All
channels of the DA501 and DA502 modules have reference to ZP. The AGND1/
AGND2 of the analog channels are internally connected to ZP via PTC resis-
tors. For information on terminal assignment, refer to figure Fig. 18).
AC31 Adapters
Replacement devices: CPU > Replacement device 07KT9x-AD
2018/09/24
3ADR010122, 8, en_US
28
