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modbus fix read input regs max number

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This commit is contained in:
Alex Lisitsyn
2024-08-19 16:36:51 +08:00
parent 1eafc29df3
commit 41d426ce3d
1 changed files with 1 additions and 1 deletions
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2
freemodbus/modbus/functions/mbfuncinput.c
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@ -87,7 +87,7 @@ eMBFuncReadInputRegister( UCHAR * pucFrame, USHORT * usLen )
* return Modbus illegal data value exception. * return Modbus illegal data value exception.
*/ */
if( ( usRegCount >= 1 ) if( ( usRegCount >= 1 )
&& ( usRegCount < MB_PDU_FUNC_READ_REGCNT_MAX ) ) && ( usRegCount <= MB_PDU_FUNC_READ_REGCNT_MAX ) )
{ {
/* Set the current PDU data pointer to the beginning. */ /* Set the current PDU data pointer to the beginning. */
pucFrameCur = &pucFrame[MB_PDU_FUNC_OFF]; pucFrameCur = &pucFrame[MB_PDU_FUNC_OFF];