ProSoft Technology PTQ-101M - Manual (Page 152)

PTQ-101M ♦ Quantum Platform Reference
IEC 60870-5-101 Master Communication Module
Page 152 of 181 ProSoft Technology, Inc.
May 14, 2008
7.4.4 RS-422
RS-485 and RS-422 Tip
If communication in the RS-422/RS-485 mode does not work at first, despite all
attempts, try switching termination polarities. Some manufacturers interpret +/-
and A/B polarities differently.
7.5 PTQ-101M Status Data Area
This section contains a listing of the data contained in the PTQ-101M status data
object, configuration error word and module error codes.
7.5.1 Error/Status Data Format
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 PTQ
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 Event Msg Cnt This word contains the number of event messages waiting to send to
the processor.