Relay on/off (forced set/reset) [fnc71, Relay on/off, Forced set/reset) [fnc71 – KEYENCE Visual KV Series User Manual
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6.3 Functions
Chapter 6 Handheld Programmer
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6
RELAY ON/OFF
PROGRAM mode
(FORCED SET/RESET) [FNC71]
RUN mode
Function
Forces relays to turn ON/OFF, or displays ON/OFF status of relay for monitoring.
Relays that can be forced ON/OFF (When Visual KV is used)
Relays that can be forced ON/OFF
➞ Marked by O in the above tables
Relays that cannot be forced ON/OFF
➞ Marked by X in the above tables
Timers/counters which are not set on the program
Relay Nos. vary with the model. Before using this function, check the relay Nos. on
the relay No. list.
Note:
1. Relays can be forced ON/OFF when special utility relay 2301 (Input refresh disable) is
turned ON. (Visual KV Only)
2. The output terminals turn ON/OFF at the same time.
3. Relays which are not used in the program can be forced ON/OFF. Relays which are used
in the program can be forced ON/OFF from when the scan time begins until the program
changes the status of the relays.
4. Relays 2000 through 2008 and 2010 through 2015 cannot be forced ON/OFF.
5. When the input is ON:
When the timer is forced ON, output turns ON and the current value is reset to "0000".
When the timer is forced OFF, output turns OFF and the current value is changed to a
value equal to the preset value.
When the input is OFF:
The timer can be forced ON/OFF from when the scan time begins until this timer instruc-
tion is executed in the program.
6. When the counter is forced ON, output turns ON and the current value is changed to a
value equal to the preset value.
When the counter is forced OFF, output turns OFF and the current value is reset to
"0000". (For UDC, the current value is reset to "0000".)
7. When the reset input is OFF:
When the counter is forced ON, output turns ON and the current value is retained as is.
When the counter is forced OFF, output turns OFF and the current value is reset to
"0000". (For UDC, the current value is reset to "0000".)
When the reset input is ON:
The counter can be forced ON/OFF from when the scan time begins until this counter
instruction is executed in the program.
8. The high speed counter comparators can be forced OFF only. (They cannot be forced
ON.)
Type of relays
PROGRAM mode
RUN mode
Input relays
0000 to 0415
X
1.
X
2.
Output relays
0500 to 0915
O
2.
O
2.
Internal utility relays
1000 to 1915
O
3.
O
3.
3000 to17915
Special utility relays
2000 to 2915
O
4.
O
4.
Timers
T000 to T249
O
O
5.
Counters
CTR000 to CTR249
O
6.
O
7.
High speed counter
CTC0 to CTC3
O
8.
O
8.
comparators
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