PLC seimens SIMATIC 115f discrepancy

16​

01​

Error group No. 09​

DI modules in A and B​

I/O module single comparison error​

unequal, discrepancy​

time-out​

Error group No. 08​

I/O individual error​

(only in the case of CPU 942-7UF13​

with I/O ETV 3 or 4)​

-Configured discrepancy too short​

-Increase configured​

-Too great a difference between​

discrepancy time​

sensors switching​

-Check sensors​

-Sensor for relevant DI module​

-Replace sensors​

defective in case of 2-channel​

sensors​

-I/O error​

-Replace module; either I/O or​

DI/CH DQ module or DQ/RB DI​

feedback module defective; if​

module defective​

no subunit message present,​

either A or B is defective​

-Wiring fault​

-Check wiring​

e.g.​

Additional info. 1:​

Byte No. for I/O module,​

DI byte No.​

decimal display​

Additional info. 2:​

CH DQ byte No.​

Byte No. for CH DQ module​

decimal display​

Additional info. 3:​

Bit No.​

Bit No. of the discovered error,​

decimal display​

i got the above error in 3 redundant input cards i chnged the time and replace cards without result any help?