Beckhoff EPP3504-0023 Short Manual page 89

Commissioning
//Due to 'output = gain * input + offset', the offset have to be adapted:
nOffset := nOffset * nGain;
// Initiate writing to CoE:
nSubIndex := nSubIndScalGain;
nSTATE_WRITE_COE := 10;
nSTATE_SCALE_GAIN := nSTATE_SCALE_GAIN + 10;
END_IF
10:
IF(nSTATE_WRITE_COE = 0) THEN
IF NOT (nOffset = 0) THEN
// (bScalingOrder is TRUE)
nDINT_Value := REAL_TO_DINT(nOffset);
// Initiate writing to CoE (again):
nSubIndex := nSubIndScalOffs;
nSTATE_WRITE_COE := 10;
END_IF
nSTATE_SCALE_GAIN := nSTATE_SCALE_GAIN + 10;
END_IF
20:
IF(nSTATE_WRITE_COE = 0) THEN
// Scaling gain done within CoE of the device
bScaleGainStart := FALSE;
bScaleGainDone := TRUE;
nSTATE_SCALE_GAIN := 0; // Set initial state
END_IF
END_CASE
END_IF
IF (nSTATE_WRITE_COE > 0) THEN
IF bWriteToCoEEnable THEN
CASE nSTATE_WRITE_COE OF
10:
// Prepare CoE write access
fb_coe_write(
sNetId:= userNetId,
nSlaveAddr:= nUserSlaveAddr,
nIndex:= nCoEIndexScaler,
bExecute:= FALSE,
tTimeout:= T#1S
);
nSTATE_WRITE_COE := nSTATE_WRITE_COE + 10;
20:
// Write nDINT_Value to CoE Index "Scaler":
fb_coe_write(
nSubIndex:= nSubIndex,
pSrcBuf:= ADR(nDINT_Value),
cbBufLen:= SIZEOF(nDINT_Value),
bExecute:= TRUE
);
nSTATE_WRITE_COE := nSTATE_WRITE_COE + 10;
30:
fb_coe_write();
IF NOT fb_coe_write.bBusy THEN
EPP3504-0023 Version: 1.2 89