6-4 Project Settings
6-22
When the specified number of log entries is exceeded, the oldest data is deleted and the new
data is recorded.
Use the NS-Designer to set the number of log entries.
Reference
Refer to 6-2-3 Data Log Initialization in this manual and Data Log Function in 2-18 Spe-
cial Functions in the Programming Manual for details on the data log.
6-4-7 Operation Log Recording Method
This function displays the method for recording the operation log. The operation log recording
method is read only and cannot be edited. This operation log recording method is set from the
NS-Designer.
If Save in Ring Buffer Format is set, when the specified number of items is exceeded, the
oldest data is deleted and the new data is recorded.
If the log is not saved in ring buffer format, the PT stops collecting log data when the specified
number of items has been reached. Initialize the operation log to reopen the record.
Reference
Refer to 6-2-4 Operation Log Initialization in this manual and Operation Log Function in
2-18 Special Functions in the Programming Manual for details on the operation log.
6-4-8 Error Log Recording Method
This function displays the error log recording method. The error log recording method is read
only and cannot be edited. The use of a ring buffer for the error log recording method is fixed.
When the maximum number of items is exceeded, the oldest data is deleted and the new
data is recorded.
Reference
Refer to 6-2-5 Error Log Initialization in this manual and Error Log Function in 2-18 Spe-
cial Functions in the Programming Manual for details on the error log.
6-4-9 System Memory
The system memory is used to control the PT and exchange information between the host
and the PT, such as notifying the host of PT status. The system memory can be allocated to
host addresses or to PT memory.
Allocating the system memory as host addresses allows operations such as controlling the
PT from the host. The allocated location in the host is displayed in the System Memory and
cannot be edited.
The location where the system bit memory and system word memory is allocated (allocated
host and address) is displayed in the System Bit Memory ($SB) and System Word Memory
($SW).
Reference
Refer to 2-4 System Memory in the PT Programming Manual for details on the system
memory.
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