I am experiencing some problems trying to interface with an RS485 power meter. I am using the official Modbus library, I have checked all parameters to make sure they are all right. I think the problem is due to the SN75176BP (converts RS232 to RS485) chip needing to be enabled for sending-recieving, as it is not full duplex. I have no idea where to switch between directions, as this would take a deep understanding of the library, which I do not have. Anyone else have any ideas or experience with this chip?
Any suggestions are appreciated!