MergReply (JMRI API)

java.lang.Object
- jmri.jmrix.AbstractMessage
- - jmri.jmrix.AbstractMRReply
  - - jmri.jmrix.can.adapters.gridconnect.GridConnectReply
    - - jmri.jmrix.can.adapters.gridconnect.canrs.MergReply

All Implemented Interfaces:

Message
```
public class MergReply
extends GridConnectReply
```
Class for replies in a MERG GridConnect based message/reply protocol.
The GridConnect protocol encodes messages as an ASCII string of up to 24 characters of the form: :ShhhhNd0d1d2d3d4d5d6d7;
hhhh is the two byte (11 useful bits) header The S indicates a standard CAN frame :XhhhhhhhhNd0d1d2d3d4d5d6d7; The X indicates an extended CAN frame Strict
Gridconnect protocol allows a variable number of header characters, e.g., a header value of 0x123 could be encoded as S123, X123, S0123 or X00000123.
MERG hardware uses a fixed 4 or 8 byte header when sending GridConnectMessages to the computer. The 11 bit standard header is left justified in these 4 bytes. The 29 bit standard header is sent as <11 bit SID><0><1><0>< 18 bit EID> N or R indicates a normal or remote frame, in position 6 or 10 d0 - d7 are the (up to) 8 data bytes

- Field Summary
  - Fields inherited from class jmri.jmrix.AbstractMRReply
    DEFAULTMAXSIZE
  - Fields inherited from class jmri.jmrix.AbstractMessage
    _dataChars, _nDataChars
- Constructor Summary
  
  Constructors
  Constructor Description
  
  MergReply()
  Create new MergReply.
  
  MergReply(java.lang.String s)
  Create new MergReply from String.
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  int getHeader()
  Get the CAN header from MERG format in digits 2 to 9.
  - Methods inherited from class jmri.jmrix.can.adapters.gridconnect.GridConnectReply
    basicFormatCheck, createReply, getByte, getElement, getNumBytes, getNumDataElements, isExtended, isRtr, maxSize, setData, setElement, setNumDataElements, skipPrefix
  - Methods inherited from class jmri.jmrix.AbstractMRReply
    flush, getOpCode, isBinary, isRetransmittableErrorMsg, isUnsolicited, match, pollValue, setBinary, setOpCode, setUnsolicited, skipWhiteSpace, toString, value
  - Methods inherited from class jmri.jmrix.AbstractMessage
    equals, hashCode
  - Methods inherited from class java.lang.Object
    clone, finalize, getClass, notify, notifyAll, wait, wait, wait
  - Methods inherited from interface jmri.jmrix.Message
    toMonitorString

- Constructor Detail
  - MergReply
```
public MergReply()
```
    Create new MergReply.
  - MergReply
```
public MergReply(java.lang.String s)
```
    Create new MergReply from String.
    
    Parameters:
    
    s - Frame data to create MergReply from.
- Method Detail
  - getHeader
```
public int getHeader()
```
    Get the CAN header from MERG format in digits 2 to 9.
    
    Overrides:
    
    getHeader in class GridConnectReply
    
    Returns:
    
    the CAN header as an int