This function is called from YOUR application code to write to multiple 16-bit holding registers on a Modbus slave.
Prototype
CPU_INT16U MBM_FC16_HoldingRegWrN (MODBUS_CH *pch,
CPU_INT08U slave_node,
CPU_INT16U slave_addr,
CPU_INT16U *p_reg_tbl,
CPU_INT16U nbr_reg);Arguments
pch
is a pointer to the channel (returned by MB_CfgCh()). This pointer specifies onto which channel the Modbus master will be communicating on. Of course, ‘pch’ must have been configured as a Master when you configured the channel.
...
specifies the number of registers you want to change. Of course the array pointed to by p_reg_tbl must contain the corresponding number of values.
Returned Value
MODBUS_ERR_NONE
If the call was successful.
...
If the expected number of bytes to receive doesn't correspond to the number of bytes received.
Notes / Warnings
None
Called By
Your Modbus master application.