Rockwell Automation 1756-RIO ControlLogix Remote I/O Communication Interface Module User Manual - Manual (Page 110)

110 Publication 1756-UM534B-EN-P - November 2010
Chapter 5 Monitor Remote I/O
Block Transfer Read Diagnostics
The following table lists the diagnostics for block transfer reads.
Scanner Mode Block Transfer Read Diagnostics
Counter Description
State Config/active/inactive.
Type Module type from the module template.
BTR Len Block transfer read length.
Req Update Time Requested update time in the module configuration, in ms.
Avg Update Time Average update time for this block transfer read, in ms. This is the average of the previous eight updates.
Min Update Time Minimum update time for this block transfer read, in ms.
Max Update Time Maximum update time for this block transfer read, in ms.
Update Count Running count of updates for this block transfer read.
Ignored Reqs Running count of update requests ignored by the block transfer module.
Prot Errors Running count of protocol errors for this block transfer read. If this counter is incrementing, the module isn’t
responding correctly.
Request Count Count of the number of times on successive scans this block transfer was requested. If this number is
consistently greater than 1, increase the requested update time - the module cannot respond quickly enough at
the current requested time. The counter applies to the BTR and BTW for this module.