ProSoft Technology PLX51-PBM

PLX51-PBM Diagnostics
PROFIBUS DPV0/DPV1 Master or Slave to EtherNet/IP™ or Modbus® Gateway User Manual
ProSoft Technology, Inc. Page 165 of 196
Modbus Statistics
The Modbus Statistics tab displays the statistics associated with the Modbus
communication and mapping.
Figure 8.9 – PLX51-PBM Master mode status monitoring – Modbus Statistics
Table 8.5 – Modbus statistics
Statistic
Description
Tx Packet Count
The number of Modbus packets sent by the module.
Rx Packet Count
The number of Modbus packets received by the module.
Checksum errors
The number of corrupted Modbus packets received by the module.
Parity errors
The number of bytes with parity errors received by the module.
Timeout Errors
The number of message response timeouts the module has
encountered.
Data Too Large
The number of Modbus requests or responses where the data was too
large to process.
Register Not Valid
The number of Modbus requests containing an invalid register.
Node Mismatch
The received Modbus request did not match the module’s Modbus node
address.
Data Alignment Errors
The Modbus request and associated mapped item is not byte aligned
with the destination Logix tag.
Illegal Function
The number of times the Modbus device responded with an Illegal
Function exception.
Illegal Data Address
The number of times the Modbus device responded with an Illegal Data
Address exception.
Illegal Data Value
The number of times the Modbus device responded with an Illegal Data
Value exception.
Slave Device Failure
The number of times the Modbus device responded with a Device Failure
exception.
Acknowledge –Response
Delay
The number of times the Modbus device responded with an
Acknowledge exception.
Slave Device Busy
The number of times the Modbus device responded with a Slave Busy
exception.
Negative Acknowledge
The number of times the Modbus device responded with a Negative
Acknowledge exception.