1MAC052634-MB D
Section 3
Vendor-specific implementation
615/620 series ANSI
35
Communication Protocol Manual
Table 25:
Interpretation of the integer status data value
Table 26:
Interpretation of the ACD data
Table 27:
Interpretation of the SEC data
The original SEC cnt attribute is actually defined as a 32 bit counter. The Modbus event
shows the least significant 16 bits of that counter (i.e., 0 - 65535).
3.3.8.4
Multiple event records reading
It is possible to read out up to 10 sequential event records in one event select/read
transaction. The number of sequential event records to be returned for reading shall be
written to the Num of records register in front of the selection register. This number can
be written once or it can be rewritten for each select/read transaction. If this number is
never written, only one event record is returned.
If the Modbus client requests multiple event records, the returned records should also be
read out by the client. One record consists of 11 registers, two records of 22 registers and
so on. The read length must thus be adjusted depending on the number of records
requested.
The selection/read operation is otherwise exactly similar to the single-record read case.
The next records to be returned always continues from the last record in the previous read
operation.
Register address
1
1. See Modbus ANSI point list manual for specific event record structure mappings.
Meaning
4xxxx
Higher 16 bit part of the 32 bit integer value
4xxxx + 1
Lower 16 bit part of the 32 bit integer value
Register address
1
1. See Modbus ANSI point list manual for specific event record structure mappings.
Meaning
4xxxx
xxxx.xxxx.xxxx.xxx0 Object in OFF position
xxxx.xxxx.xxxx.xxx1 Object in ON position
4xxxx + 1
xxxx.xxxx.xxxx.xx00 Start in unknown direction
xxxx.xxxx.xxxx.xx01 Start in forward direction
xxxx.xxxx.xxxx.xx10 Start in backwards direction
xxxx.xxxx.xxxx.xx11 Start in both directions
Register address
1
1. See Modbus ANSI point list manual for specific event record structure mappings.
Meaning
4xxxx
xxxx.xxxx.xxxx.x000 Unknown security violation
xxxx.xxxx.xxxx.x001 Critical security violation
xxxx.xxxx.xxxx.x010 Major security violation
xxxx.xxxx.xxxx.x011 Minor security violation
xxxx.xxxx.xxxx.x100 Warning
4xxxx + 1
Security violations counter, 16 bits