PLX51-PBM
PROFIBUS DPV0/DPV1 Master or Slave
to EtherNet/IP™ or Modbus Gateway
PLX51-PBM Preface PROFIBUS DPV0/DPV1 Master or Slave to EtherNet/IP™ or Modbus Gateway User Manual ProSoft Technology, Inc. Page 8 of 184 1.2 Features The PLX51-PBM will allow the user to interface PROFIBUS DPV0/DPV1 to either EtherNet/IP or Modbus. The PLX51-PBM can be set to operate as either a PROFIBUS DP Master or Slave. The PLX51-PBM, when configured as a Master can exchange up to 2 kilobytes of PROFIBUS device and status data (72 bytes are reserved for master status, and 8 bytes for each configured slave). The PLX51-PBM has two Ethernet ports allowing the user to have either a Linear or Ring (Device Level Ring – DLR) Ethernet topology. The Ethernet ports can also be setup for port mirroring allowing for better fault analysis. The PLX51-PBM can synchronize to an NTP Server allowing for automatic time synchronization. The PLX51-PBM also supports an onboard non-volatile event log for improved fault finding. 1.2.1 PROFIBUS Master The PLX51-PBM can exchange process data (DPV0) with up to 125 PROFIBUS DP slave devices. The data is formatted into the engineering units for use in either a Logix platform or Modbus device by using the automatically generated mapping imports for Logix User Defined Data Types (UDTs) or padding for Modbus Registers. The latter ensures alignment with the 16-bit data structure. The PLX51-PBM also provides DPV1 communication allowing the user to exchange DPV1 Class 1 and Class 2 data with each slave device. The PLX51-PBM Gateway DTM can be used to configure and parameterize each slave device using Device Type Manager (DTM) technology. The PLX51-PBM will allow the user to monitor and extract DPV1 alarms from each slave device on the connected PROFIBUS DP fieldbus from either a Logix controller or Modbus Master device. 1.2.2 PROFIBUS Slave The PLX51-PBM can also be configured to emulate up to 10 PROFIBUS slave devices. Each slave device emulated by the PLX51-PBM can be configured to provide DPV0 data exchange with a PROFIBUS Master on the network. The data will be formatted into the engineering units for use in either a Logix platform or Modbus device by using the automatically generated mapping imports for Logix User Defined Data Types (UDTs) or padding for Modbus Registers. The latter ensures alignment with the 16-bit data structure. Each emulated slave can also be configured to exchange DPV1 Class 1 data by mapping either Logix tags or Modbus registers for the relevant DPV1 data exchange. Each emulated slave will also be able to provide DPV1 alarming for the PROFIBUS Master. The PLX51-PBM provides a range of statistics and tools to provide a detailed diagnostic overview of each PLX51-PBM which speeds-up fault finding. The Configuration Utility allows the user to perform a PROFIBUS DP packet capture of the running fieldbus which can be used to analyse the bus behaviour and packets received. The PLX51-PBM also provides global and device specific statistics.
