Chapter 8 status reports, 1 status information and filter, Status information and filter -1 – Yokogawa Data Acquisition with PID Control CX2000 User Manual
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8-1
IM 04L31A01-17E
8
Status Reports
8.1
Status Information and Filter
The following figure depicts the status information and filter on the CX.
Status information
Filter
Condition register
4 bytes
4 3 2 1
4 3 2 1
• The IF command can be used to set the filter.
• When a status indicated on the following page is entered, the corresponding bit in the
condition register is set to “1.” The logical AND of the condition register and the filter
becomes the status information.
• The IS command is used to output the status information. Status information 1 and 2
are cleared when they are output. Status information 3 and 4 are not cleared when
they are output; they remain at “1” while the event is occurring.
• When multiple connections are up, filters can be specified for the individual
connection. Therefore, the status information can be held for each connection.
Chapter 8 Status Reports