Versions and new features PLCcom for Modbus

New features in version 8.1.1
  • Unterstützung .Net 6 (.net version only)
  • Verweis-Upgrade System.Io.Ports auf Version 6(.net version only)
  • Unterstützung Java Version 17 bzw. openJDK17 (java version only)
  • Unlocking function codes 65 to 127 for user-defined functions
  • Bugfix: possible TCP connection aborts when using .net 5
  • internal adjustments and improvements
New features in version 7.3.3 (.net version only)
  • Bugfix: Problems when establishing a TCP connection using .net 5
New features in version 7.3.2
  • Optimization of the timeout behavior in the event of connection interruptions
  • Bugfix: possibly occurring problems when TCP / IP packets are transmitted split
  • various internal adjustments
New features in version 7.2.6 (.net version only)
  • Reference upgrade System.Io.Ports to version 5
New features in version 7.2.5
  • Fix problem when using a non-optimized ReadCollection
New features in version 7.2.1
  • Fix problem possibly high memory usage Modbus slave
New features in version 7.1.1
  • Support of the .Net 5.0 framework
  • JRE/JDK at least version8 or higher
  • Fix problem fast simultaneous TCP request over multiple ports may cause problems and disconnections
  • Fix problem possible connection aborts with asynchronous TCP transmission
  • Nuget package available
  • Framework version at least 4.2
  • Internal improvements and revisions
New features in version 6.6.1
  • Definition of the minimum period in milliseconds between two characters for RTU master instances
  • Improvement of the TCP / IP connection stability
New features in version 6.5.1
  • The slave ID can now be specified up to 255, previously a maximum of 247
  • internal optimizations
New features in version 6.4.1
  • get STRING datatype with byte order
  • .net version only: new datatype SByte (signed byte)
  • java version only: new datatype UByte (unsigned byte)
  • Bugfix: optimized internal speed 
New features in Version 6.3.1
  • Bugfix: Internal performance settings
New features in Version 6.2.1 (only JAVA)
  • Additional enums eFlowcontrol "RTSCTS, XONXOFF und RTSCTS_XONXOFF"
New features in Version 6.1.2
  • new Communication type RTU_over_TCP
  • (only .NET) property Readtimeout is deprecated, please use property OperationTimeout instead
  • (only .NET) property Connecttimeout is deprecated because of misspelling, please use property ConnectTimeout instead
  • (only .NET) CRC / LCR check can be switched off on request for the Modbus master with new Property CRCCheckEnabled
  • (only Java) function getReadtimeout() is deprecated, please use function getOperationTimeout() instead
  • (only Java) method setReadtimeout() is deprecated, please use method setOperationTimeout() instead
  • (only Java) function getConnecttimeout () is deprecated because of misspelling, please use function getConnectTimeout () instead
  • (only Java) method setConnecttimeout () is deprecated because of misspelling, please use method setConnectTimeout () instead
  • (only Java) CRC / LCR check can be switched off on request for the Modbus master with new method/function boolean getCRCCheckEnabled() and setCRCCheckEnabled(boolean value)
New features in Version 5.6.5
  • Identification flag for related requests
New features in Version 5.6.0
  • Bugfix: Reading single bits from holding register (collection)
New features in Version 5.5.0
  • New function (Overwrite the auto-disconnect while Timeout)
New features in Version 5.4.1
  • Parameter to limited the PDU length
(java version only)
New features in Version 5.3.0
  • Bugfix: Error reading more than 63 registers in a call
New features in Version 5.2.0
  • Option to enable or disable diagnostic log
New features in Version 5.1.0
  • Official support of "Encapsulated Interface transport" FC43 / MEI 13
  • Internal improvements in terms of speed and stability
  • Memory leak while bad connection (logging)
New features in Version 4.7.0
  • Bugfix doubled error code -19
New features in Version 4.6.0(only JAVA)
  • Bugfix ReadCollections HoldingRegister from address 63
New features in Version 4.5.0(only JAVA)
  • Bugfix Read/Write of floats and doubles
  • Bugfix ReadrequestBuilder from Address 32
New features in Version 4.4.0
  • memory delete when reading a read collection
New features in Version 4.3.5
  • from this version compatible to JRE7 and JRE8
New features in Version 4.1.0
  • internal optimization for a faster access
  • Bug fix while reading bytes for „showing wrong address“
New features in Version 3.3.3
  • Bug fix for DNS and IPV6 problems
New features in Version 3.3.2
  • Bug fix, Errormessage while fast calls at Modbus-Slave
New features in Version 3.2.1
  • Bug fix, Sequence-Error at telegram 256 in Modbus-Slave