Siemens M200D Manual Do Utilizador
Configuration / parameterization
5.4 Process images
M200D AS-Interface Basic
74
Manual, 03/2009, A5E01668085-01
5.4
Process images
Definition of process image
The process image is a component of the AS-i master system memory.
At the start of the cyclic program, the signal states of the inputs are transferred to the
At the start of the cyclic program, the signal states of the inputs are transferred to the
process image for the inputs.
At the end of the cyclic program, the process image of the output is transferred to the slave
At the end of the cyclic program, the process image of the output is transferred to the slave
as a signal state.
Input process image (PII)
The following table contains process data and a process image for inputs DI 0 to DI 3:
Byte / bit Process image
Signal: 1 = HIGH, 0 = LOW
DI 0
Ready (automatic)
0: Starter not ready for host / PLC
1: Starter ready to be operated via host
DI 1
Motor ON
0: OFF
1: ON (CW / CCW)
DI 2
Input 1
(input action: quick stop)
0: Not active
1: Active
DI 3
Input 2
(no action)
0: Not active
1: Active
Output process image (PIO)
The following table contains process data and a process image for outputs DO 0 to DO 3:
Byte / bit Process image
Signal: 1 = HIGH, 0 = LOW
DO 0
Motor RIGHT
0: Motor OFF
1: Motor ON
DO 1
Motor CCW
0: Motor OFF
1: Motor ON
DO 2
Disable quick stop
0: Not active
1: activated
DO 3
A / B switchover
0: A slave activated
1: B slave activated
Reference
For more information about system integration and data management in the controller, refer
to the "System AS-Interface"
(
) system manual.