Mitsubishi Electric MELSEC-Q/L Programming Manual page 203

[TIMER_HIGH_FB_M]
• The high-speed timer with the unit of measurement from 0.1 to 100ms. Starts measuring the current value when the
executing condition of (s1) turns ON. Starts measuring from the value input to (s3)  0.1 to 100ms, and when the measuring
value reaches to the value input to (s2)  0.1 to 100ms, (d2) turns ON.
• The current value is output from (d1).
• When the executing condition of (s1) turns OFF, the current value is set to the value input to (s3), and (d2) turns OFF.
• The default value of the unit of measurement (time period) for the high-speed timer is 10ms.
• The unit of measurement can be changed within the following range.
• This setting is set in the PLC system setting of the PLC parameter.
CPU module
Basic model QCPU, High Performance model QCPU, Process CPU, Redundant CPU
Universal model QCPU, LCPU
• Valid setting range for (s2) is 0 to 32767.
• Valid setting range for (s3) is -32768 to 32767. However, if negative value is specified, the initial value is 0.
[TIMER_LOW_FB_M]
• The low-speed timer with the unit of measurement from 1 to 1000ms. Starts measuring the current value when the
executing condition of (s1) turns ON. Starts measuring from the value input to (s3)  1 to 1000ms, and when the measuring
value reaches to the value input to (s2)  1 to 1000ms, (d2) turns ON.
• The current value is output from (d1).
• When the executing condition of (s1) turns OFF, the current value is set to the value input to (s3), and (d2) turns OFF.
• The default value of the unit of measurement (time period) for the low-speed timer is 100ms.
• The unit of measurement is from 1 to 1000ms and it can be changed by unit of 1ms.
• This setting is set in the PLC system setting of the PLC parameter.
• Valid setting range for (s2) is 0 to 32767.
• Valid setting range for (s3) is -32768 to 32767. However, if negative value is specified, the initial value is 0.
[TIMER_CONT_FB_M,TIMER_CONTHFB_M]
• The retentive timer that measures the time during variable is ON. Starts measuring the current value when the executing
condition of (s1) turns ON. The low-speed retentive timer (TIMER_CONT_FB_M) and the high-speed retentive timer
(TIMER_CONTHFB_M) are the two types of retentive timer.
• Starts measuring from the value input to (s3)  1 to 1000ms, and when the count value reaches to the value input to (s2) 
1 to 1000ms, (d2) turns ON. The current value is output from (d1).
• Even when the executing condition of (s1) turns OFF, the ON/OFF statuses of measuring value (d1) and (d2) are retained.
When the executing condition of (s1) turns ON again, restarts measuring from the values that are retained.
• The unit of measurement (time period) for retentive timer is same as the low-speed timer (TIMER_LOW_FB_M) and the
high-speed timer (TIMER_HIGH_FB_M).
• Low-speed retentive timer: Low-speed timer
• High-speed retentive timer: High-speed timer
• Valid setting range for (s2) is 0 to 32767.
• Valid setting range for (s3) is -32768 to 32767. However, if negative value is specified, the initial value is 0.
• When resetting the current value of the retentive timer, reset (s1).
Ex.
When instance name is TIMER_CONT_FB_M_1.
[Structured ladder/FBD]
[ST]
TIMER_CONT_FB_M_1(Coil:=Var_M0,Preset:=10,ValueIn:=0,ValueOut:=Var_D10,Status:=Var_M10);
RST(M15,TIMER_CONT_FB_M_1.Coil);
Resets (Coil)
s1
5.12 Standard Timer Function Blocks
Setting range
0.1ms to 100ms
0.01ms to 100ms
5 APPLICATION FUNCTIONS
5
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