Filter
Top Products
5 - 22
5.3 Using the Counter Value Comparison Function
5.3.3 Using the coincidence output test function
5
FUNCTIONS
5.3.3 Using the coincidence output test function
Use the coincidence output test function to check the wiring of the coincidence output No.1
terminal (EQU1) and the coincidence output No.2 terminal (EQU2) when selecting the
continuous comparison function.
When using the continuous comparison function, the coincidence output No.1 terminal
(EQU1) and the coincidence output No.2 terminal (EQU2) automatically turn OFF.
Therefore, check the wiring using the coincidence output test function.
(1) Operation of coincidence output test function
Figure 5.9 Operation example of the coincidence output test function
(2) Execution condition of the coincidence output test function
(a) Before executing the coincidence output test function, check that the following
signals are all OFF.
• Count enable command (Y06)
• Continuous comparison No.1 execution command (Y09)
• During continuous comparison No.1 execution (X09)
• Continuous comparison No.2 execution command (Y0A)
• During continuous comparison No.2 execution (X0A)
If the coincidence output test is attempted while any of the above signal is ON, the
coincidence output No.m test output not possible warning (Warning code: 31 and
32) occurs.
(b) Counting cannot be started while the coincidence output test command is ON.
Do not turn ON the count enable command (Y06).
If it is turned ON, a count enable execution not possible error (Error code: 300)
occurs.
Table 5.8 Details of operation example of coincidence output test function
Number Description
1)
When the coincidence output No.1 test command (Y0B) is turned ON, the
following are executed.
•The coincidence output No.1 terminal (EQU1) turns ON.
•Bit 4 (Coincidence output No.1 output status) of the external I/O status monitor
(Un\G17) turns ON.
2)
When the coincidence output No.1 test command (Y0B) is turned OFF, the
following are executed.
•The coincidence output No.1 terminal (EQU1) turns OFF.
•Bit 4 (Coincidence output No.1 output status) of the external I/O status monitor
(Un\G17) turns OFF.
ON
1) 2)
OFF
ON
OFF
ON
OFF
Coincidence output No.1 test command
(Y0B)
Coincidence output No.1 terminal
(EQU1)
External I/O status monitor. b4
(Un\G17)