MnBdRequest

Sends a request to the specified main board device.

int MnBdRequest(int nDev, int nReq, int nWaitAck);

Parameters

• nDev - main board device number
• nReq - request code
• nWaitAck - WAIT_ACK to wait for result, or NO_WAIT_ACK to continue processing

Return Value

• If WAIT_ACK specified returns OK (MNBD_REQ_ACK_RCVD) if successful, MNBD_REQ_NACK_RCVD if error response, MNBD_REQ_TIMEOUT if no response (MnBdRequest retries up to five times).

Remarks

Examples

if(MnBdRequest(1, MNBD_REQ_ZERO_SCALE, WAIT_ACK) != OK)
{
    DisplayText(0, 0, "Error zeroing scale");
}

The above MnBdRequest is equivalent to ZeroScale(1).

See Also

• MnBdRead
• MnBdOpen