This function is called from YOUR application code to write to a single coil on a Modbus slave.
Prototype
CPU_INT16U MBM_FC05_CoilWr (MODBUS_CH *pch,
CPU_INT08U slave_node,
CPU_INT16U slave_addr,
CPU_BOOLEAN coil_val);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.
...
is the desired value of the coil and can be either: MODBUS_COIL_OFF or MODBUS_COIL_ON.
Returned Value
MODBUS_ERR_NONE
if the call was successful.
...
If you specified an invalid coil address.
Notes / Warnings
None
Called By
Your Modbus master application.