Counting Control Output On/Off Operations; Control Output On/Off Count Function - Omron E5CN-HT User Manual

Counting Control Output ON/OFF Operations

4-20 Counting Control Output ON/OFF Operations

4-20-1 Control Output ON/OFF Count Function

Control Output ON/
OFF Counter Monitor
Function
Control Output ON/
OFF Count Alarm
Function
Control Output 1 ON/OFF Alarm Set
Value (ra1)
Control Output 2 ON/OFF Alarm Set
Value (ra2)
If Control Output 1 and 2 are ON/OFF outputs (relay outputs, voltage outputs
for driving SSR), the number of times that a control output turns ON and OFF
can be counted. Based on the control output ON/OFF count alarm set value,
an alarm can be output and an error can be displayed if the set count value is
exceeded.
The default setting of the Control Output ON/OFF Alarm Set Value parameter
is 0. ON/OFF operations are not counted when this parameter is set to 0. To
enable counting ON/OFF operations, change the setting to a value other than
0.
This function is not displayed when the Control Output 1 ON/OFF Alarm Set
Value and the Control Output 2 ON/OFF Alarm Set Value parameter are set to
0, or when the control outputs are set for linear outputs.
Parameter name
Control Output 1 ON/OFF Count Monitor
Control Output 2 ON/OFF Count Monitor
Display When ON/OFF Count Alarm Occurs
When an ON/OFF count alarm occurs, the PV display in the No. 1 display
shown below alternates with the ralm display on the No. 2 display.
• PV
• PV/SP (Including the items displayed by setting the "PV/SP" Display
Screen Selection parameter.)
• PV/Manual MV (Valve Opening), PV/SP/Manual MV (Valve Opening)
• PV/SP displayed for the monitor/setting items
Normal
C
25.0
PV/SP
100.0
If the ON/OFF counter exceeds the control output ON/OFF count alarm set
value, an ON/OFF count alarm will occur. The alarm status can be assigned
to a control output or an auxiliary output, or it can be displayed at the Control-
ler. The ON/OFF count alarm set value function is disabled by setting the ON/
OFF count alarm set value to 0.
Parameter name
Setting range
0 to 9999
0 to 9999
ON/OFF Count Alarm
C
25.0
Alternating
display
ralm
Setting range
0 to 9999 100 times
0 to 9999 100 times
Section 4-20
Unit Default
100 times 0
100 times 0
100.0
Unit Default
0
0
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