ProSoft Technology MVI56E-MCMR - Manual (Page 155)

MVI56E-MCMR ♦ ControlLogix Platform Reference
Modbus Communication Module with Reduced Data Block User Manual
ProSoft Technology, Inc. Page 155 of 225
May 13, 2014
Word Offset Content Description
25 Parse Block Count This field contains the total number of Output Image
blocks received from the processor that were
considered valid by the module firmware (successfully
parsed or understood). If backplane communications
are normal, this value will be equal or nearly equal to
the Write Block Count value. If this counter does not
increment along with the Write Block Count counter,
you have a serious backplane communication
problem between the processor and the module.
Check the module configuration in the I/O
Configuration section of your process logic for
possible additional error information.
26 Event Command Block
Count This field contains the total number of Event
Command blocks received from the processor.
27 Command Control Block
Count This field contains the total number of Command
Control blocks received from the processor.
28 Backplane Communication
Error Block Count This field contains the total number of block errors
recognized by the module. If this counter is
incrementing, you have a serious backplane
communication problem between the processor and
the module. Check the module configuration in the I/O
Configuration section of your process logic for
possible additional error information.
29 Port 1 Current Error For a Slave port, this field contains the value of the
current error code returned to a remote Master. For a
Master port, this field contains the Command List
index of the currently executing command that is
receiving an error from a Slave.
30 Port 1 Last Error For a Slave port, this field contains the value of the
most recent previous error code returned to a remote
Master. For a Master port, this field contains the
Command List index of the command which received
the most recent previous error from a Slave.
31 Port 2 Current Error For a Slave port, this field contains the value of the
current error code returned to a remote Master. For a
Master port, this field contains the Command List
index of the currently executing command that is
receiving an error from a Slave.
32 Port 2 Last Error For a Slave port, this field contains the value of the
most recent previous error code returned to a remote
Master. For a Master port, this field contains the
Command List index of the command which received
the most recent previous error from a Slave.