PLX51-PBM Operation
PROFIBUS DPV0/DPV1 Master or Slave to EtherNet/IP™ or Modbus® Gateway User Manual
ProSoft Technology, Inc. Page 121 of 196
General Control
The PLX51-PBM in Slave mode will operate similar to when in Master mode, but
each configured Slave will be enabled by setting the correct enable bit in either the
Logix output assembly. Once the respective bit has been set in the DeviceEnable
BOOL array the PLX51-PBM will become “alive” on the PROFIBUS network and will
start responding to a PROFIBUS DP Master.
Figure 5.5 – General Control tags
Table 5.38 – General Control tags
These bits enable nodes on the PROFIBUS network for data exchange.
Each bit represents a node. When the specific bit is set ‘1’ then the
device (if configured) will exchange data with the PLX51-PBM and when
the bit is off ‘0’ the device does exchange data with the PLX51-PBM.
Bit 0 – Node 0 is enabled for data exchange
Bit 1 – Node 1 is enabled for data exchange
Bit 126 – Node 126 is enabled for data exchange
The user will be able to see if there are any faults (e.g. configured device not found)
by viewing the LEDs of the PLX51-PBM (see the Diagnostics section for more
details), by going online with the module in the PLX50 Configuration Utility and
viewing the PLX51-PBM Slave and Device Diagnostics, or by viewing the input
assembly of the PLX51-PBM Slave in Logix.
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