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PLC報警NO:44 sp.UNIT LAY.ERR ？請問怎么復位PLC。

Error code list[Error code44,Detail error code---]
Applicable machine AnSH
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Error code(D9008) 44
Detail error code(D9092) ---
  Detail error code will be stored in D9092 just at the time of using dedicated instruction for CC-Link.
Error message SP. UNIT LAY. ERR.
PLC states Stop
Error and cause
(1)More than 2 computer link unit are installed in a PLC unit.
(2)More than 1 MELSECNET(ll),MELSECNET/B,MELSECNET/10 data link unit are installed.
(3)More than 1 interrupt unit are installed.
(4)In the parameter setting by peripheral device, I/O allocation is set as special function that must be set I/O unit Or it set the other way.
Corrective action
(1)Install less than 3 computer link units.
(2)Install less than 2 MELSECNET(ll),MELSECNET/B,MELSECNET/10 data link unit.
(3)Install a interrupt unit.
(4)I/O allocation of parameter setting by peripheral device to accord with install status of special function unit.