ProSoft Technology MVI56-DFCM - Manual (Page 81)

MVI56-DFCM ♦ ControlLogix Platform Reference
DF1 Half/Full Duplex Master/Slave Serial Communication Module User Manual
ProSoft Technology, Inc. Page 81 of 106
September 24, 2014
Offset Content Description
226 Write Block Count This field contains the total number of write blocks transferred
from the processor to the module.
227 Parse Block Count This field contains the total number of blocks successfully
parsed that were received from the processor.
228 Command Event Block
Count This field contains the total number of command event blocks
received from the processor.
229 Command Block Count This field contains the total number of command blocks
received from the processor.
230 Error Block Count This field contains the total number of block errors recognized
by the module.
231 Port 1 Current Error For a slave port, this field contains the value of the current error
code returned. For a Master port, this field contains the index of
the currently executing command. When the port is configured
as a master and the value is negative one (-1), none of the
configured commands have had an error yet.
232 Port 1 Last Error For a slave port, this field contains the value of the last error
code returned. For a Master port, this field contains the index of
the command with an error. If the value shown is negative one
(-1), no error has yet happened.
233 Port 2 Current Error For a slave port, this field contains the value of the current error
code returned. For a Master port, this field contains the index of
the currently executing command.
234 Port 2 Last Error For a slave port, this field contains the value of the last error
code returned. For a Master port, this field contains the index of
the command with an error.
Write Block
These blocks of data transfer information from the ControlLogix processor to the
module. The structure of the output image used to transfer this data is shown
below:
Offset Description Length
0 Write Block ID 1
1 to 200 Write Data 200
201 to 247 Spare 47
The Write Block ID is an index value used to determine the location in the
module’s database where the data will be placed. Each transfer can move up to
200 words (block offsets 1 to 200) of data.