Direct I/O Function Block IMIO_IN
(Original Document)
About us
Function description
This function block reads I/O module signals immediately during processing. The input module must be in the local rack of the PLC.
EN and ENO can be configured as additional parameters.
Representation in FBD
Representation:
Representation in LD
Representation:
Representation in IL
Representation: 
CAL IMIO_IN_Instance (RACK:=RackNumber, SLOT:=SlotNumber,
    STATUS=>StatusReport)
Representation in ST
Representation: 
IMIO_IN_Instance (RACK:=RackNumber, SLOT:=SlotNumber,
    STATUS=>StatusReport) ;
Parameter description
Description of the input parameters:
Parameter
Data type
Meaning
RACK
INT
Rack number
(Quantum: 1)
SLOT
INT
Slot number (Quantum: 1...16)
Description of the output parameters:
Parameter
Data type
Meaning
STATUS
WORD
Status report
Runtime error
The ENO parameter can be used for error display:
ENO
Meaning
1
Operation OK ( STATUS equals "0")
0
Operation faulty ( STATUS not equal to "0")