ProSoft Technology MVI56-101S - Manual (Page 159)

MVI56-101S ♦ ControlLogix Platform Reference
IEC 60870-5-101 Slave Communication Module User Manual
ProSoft Technology, Inc. Page 159 of 193
August 2, 2011
5.5 MVI56-101S Status Data Definition
This section contains a description of the members present in the InStat870
object. This data is transferred from the module to the processor as part of each
read block.
Offset Parameter Description
0 Scan Count This status value contains a counter incremented on each scan of
the module's main loop.
1 to 2 Product Name This two-word data area contains the text values representing the
product name. These words contain the text "87S5" for the MVI56
platform.
3 to 4 Revision This two-word data area contains the text values for the revision
number.
5 to 6 Op Sys # This two-word data area contains the text values for the operating
system number.
7 to 8 Run Number This two-word data area contains the text values for the run
number.
9 Read Blk Cnt This word contains the total number of block read operations
successfully executed.
10 Write Blk Cnt This word contains the total number of block write operations
successfully executed.
11 Parse Blk Cnt This word contains the total number of write blocks successfully
parsed.
12 Error Blk Cnt This word contains the total number of block transfer errors.
13 Port Selected This parameter determines which port on the module is being
utilized. If the value is set to 0, the primary port is being used. If the
value is set to 1, the backup port is being utilized.
14 Bad CKS This word contains the total number of frames received by the
module that contain a bad check-sum values in the message.
15 Sync Errors This word contains the total number of frames received by the
module that have synchronization errors. Each frame in the protocol
has a specific header that must be received in a fixed sequence. If
this header is not received correctly, this word will be incremented,
and the frame will be discarded.
16 Length Errors This word contains the total number of frames received by the
module that do not have the correct length.
17 Timeout This word contains the total number of frames received by the
module that were not received within the specified receive timeout
parameter.
18 RX Frames This word contains the total number of frames received by the
module.
19 TX Frames This word contains the total number of frames transmitted by the
module.