Pilz PSSu E S INC - Manual (Page 26)

4.1 Module features
4 Function description
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4-10
4.1.5.4 Set counter status
Set counter status 4- ][Funktionsbeschreibung_Ein ST-INC BA Zhler setzen
The "Set counter status" function sets the counter to any value. The val-
ue is stated in the user program. The module transfers the value and
continues counting from this counter status.
Key:
 PIO: Bit 2 of the function call in the process image of outputs or I/O
data OutputData.SetCounter
 PII: Bit 2 of the status byte in the process image of inputs or I/O data
InputData.SetCounterDone
Key to timing diagram:
Section Function Procedure for PSSu in system envi-
ronment A Procedure for PSSu in system envi-
ronment B
a Enter counter status In the user program, write the default
counter status in the process image of
outputs In the user program, assign the default
counter status to OutputDa-
ta.NewCounterValue
b Transfer counter status In the user program, set Bit 2 of the
function call In the user program, set OutputDa-
ta.SetCounter
c Acknowledge transfer The module sets Bit 2 of the status
byte; the underflow and overflow bits
are reset The module sets InputData.SetCoun-
terDone; InputData.Underflow and In-
putData.Overflow are reset
d Finish transfer In the user program, reset Bit 2 of the
function call In the user program, reset OutputDa-
ta.SetCounter
e Ready for new function The module resets Bit 2 of the status
byte The module resets
InputData.SetCounterDone
b
PAA
PAE
c d e a