ProSoft MVI56E-MCMR User Manual page 153

MVI56E-MCMR ♦ ControlLogix Platform
Modbus Communication Module with Reduced Data Block
Word Offset Content
25 Parse Block Count
26 Event Command Block
Count
27 Command Control Block
Count
28 Backplane Communication
Error Block Count
29 Port 1 Current Error
30 Port 1 Last Error
31 Port 2 Current Error
32 Port 2 Last Error
ProSoft Technology, Inc.
Description
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.
This field contains the total number of Event
Command blocks received from the processor.
This field contains the total number of Command
Control blocks received from the processor.
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.
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.
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.
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.
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.
Reference
User Manual
Page 153 of 223