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Omron PLC timer programming instructions

plc have set of instructions for making a decision based process, timer instructions in plc timer is an instructions that can help a programmer to count down from a set time or to count up from zero. omron plc have multi-output timer, high-speed timer, low speed timer, accumulator Timer programming instructions etc . Timer and counter refresh method is either BCD or binary. Use binary instead of BCD help to increased set value (SV) range from 0 to 9999 to 0 to 65535. Both type of instruction present in omron. SV is a set value of timer which range is depend on type of timer you select, Preset value of timer. in omron have Different series of plc like C-Series,CV-Series,CP1H/CP1L-Series etc.PLC have different abilities and this is reflected in the instructions available. Some instructions are common across all PLCs but some are not common for all.

what is different series of omron plc?below is the list of omron plc series

• C-Series PLC
• CV-Series PLC
• CS/CJ-Series PLC
• CP1H/CP1L-Series PLC
• CP1E-Series PLC

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timer Instructions for different series of omron plc

timer Instructions for omron C-Series PLC (only have BCD Timer)

• STIM: Interval Timer
• TIM: Timer
• TIML: Long Timer
• TIMH: High-Speed Timer
• TMHH: Very High-Speed Timer
• TTIM: Totalizing Timer

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timer Instructions for omron CV-Series PLC (only have BCD Timer)

• MTIM: Multi-Output Timer
• TCNT: Transition Counter
• TIM: Timer
• TIML: Long Timer
• TIMH: High-Speed Timer
• TTIM: Accumulative Timer

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timer Instructions for omron CS/CJ-Series PLC (BCD Timer as well as Binary timer)

• MTIM: Multi-Output Timer
• MTIMX: Multi-Output Timer (Binary Type)
• TIM: 100ms Timer
• TIMX: Timer (Binary Type)
• TIML: Long Timer
• TIMLX: Long Timer (Binary Type)
• TIMH: 10ms High-Speed Timer
• TIMHX: 10ms High-Speed Timer (Binary Type)
• TIMU: 0.1MS High-Speed Timer
• TIMUX: 0.1MS High-Speed Timer (Binary Type)
• TMHH: 1 MS High-Speed Timer
• TMHHX: 1 MS High-Speed Timer (Binary Type)
• TMUH: 0.01 MS High-Speed Timer
• TMUHX: 0.01 MS High-Speed Timer (Binary Type)
• TTIM: Accumulative Timer
• TTIMX: Accumulative Timer (Binary Type)

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timer Instructions for omron CP1H/CP1L-Series PLC (BCD Timer as well as Binary timer)

• MTIM: Multi-Output Timer
• MTIMX: Multi-Output Timer (Binary Type)
• TIM: 100ms Timer
• TIMX: Timer (Binary Type)
• TIML: Long Timer
• TIMLX: Long Timer (Binary Type)
• TIMH: 10ms High-Speed Timer
• TIMHX: 10ms High-Speed Timer (Binary Type)
• TMHH: 1 MS High-Speed Timer
• TMHHX: 1 MS High-Speed Timer (Binary Type)
• TTIM: Accumulative Timer
• TTIMX: Accumulative Timer (Binary Type)

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timer Instructions for omron CP1E-Series PLC (BCD Timer as well as Binary timer)

• TIM: 100ms Timer
• TIMX: Timer (Binary Type)
• TIML: Long Timer
• TIMLX: Long Timer (Binary Type)
• TIMH: 10ms High-Speed Timer
• TIMHX: 10ms High-Speed Timer (Binary Type)
• TMHH: 1 MS High-Speed Timer
• TMHHX: 1 MS High-Speed Timer (Binary Type)
• TTIM: Accumulative Timer
• TTIMX: Accumulative Timer (Binary Type)

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what is omron TIM and TIMX Instructions?

TIM is 100ms BCD type timer and TIMX is 100ms binary Timer Instructions in Omron. below shows example of TIM Instructions. select timer instructions from instruction than declare timer number of TIM Instructions block, timer number in decimal format, range for timer T0000 to T4095 for TIM and TIMX, now next to declare Set value of timer between #0000 to #9999for TIMX and 0 to 65535 decimal or #0000 to FFFF hex.

in first rung of above example i am declare timer number T0000 and set value (timer running time) of timer is #10. when input of timer is change Off to ON than timer start decrementing set value in order of 100ms, when timer set value reached to 0(zero) than timer operation completed and timer done value is set to true in second rung.

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what is omron TIMH and TIMHX Instructions?

TIMH is 10ms high speed BCD timer instructions, TIMHX is 10ms high speed Binary timer instructions. Structure is same as TIM and TIMX instruction but only difference is speed of decrementing set value. TIMH and TIMHX is faster than TIM and TIMX. below sample code of TIMH Instructions.

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what is omron TMHH and TMHHX Instructions?

TMMH and TMHHX is 1ms high speed timer instructions. TMMH is BCD timer and TMHHX is binary timer. Structure is same as TIMH/TIMHX instruction but only difference is speed of decrementing set value. TIMH and TMHHX is faster than TIMH and TIMHX. below sample code of TIMH Instructions.

when input is set to ON than timer operation start when timer PV value reached to zero than timer stop and timer done bit is set to on.

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what is omron TIMU and TIMUX Instructions ?

TIMU is BCD and TIMUX binary type ultra high speed timer operates a decrementing timer with units of 0.01ms. timer number and SV range is same as TIM timer.

above is a simple example TIMU and TIMUX Instructions, both are high speed timer. when input is set to ON than timer start decrementing SV value with units of 0.01ms. when PV value is set to zero than timer done bit set to ON

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what is omron TIML and TIMLX Instructions?

TIML is BCD type long timer Instructions and TIMLX is Binary type long timer .it decrementing timer with units of 0.1s. range for set value from #00000000 to #99999999 for TIML and and &00000000 to &4294967294 (decimal) or #00000000 to #FFFFFFFF (hexadecimal) for TIMLX. Unlike most timers TIML/TIMLX does not use a timer number. it have following operands.

• Completion Flag set when timer operation completed.
• PV Word
• SV Word

below shown sample code for TIML Instructions.

in first rung have TIML instructions. When input bit of timer is set to true than timer Set value start decrementing and stored to PV data type which is word data type. when PV value reached to zero than Completion Flag set to true. Completion Flag have dword type.

what is omron TTIM and TTIMX Instructions?

TTIM and TTIMX timer Instructions is ACCUMULATIVE TIMER or Redunt timer operates an incrementing timer with units of 0.1s. TTIM is BCD type timer while TTIMX is binary timer. TTIM timer Instructions have following structure .range for timer no is T0000 to T4095 and SV value range to #0000 to #9999.

• Timer Number range from T0000 to T4095
• SV value range to #0000 to #9999 for TTIM and 0 to 65535 decimal or #0000 to FFFF hex for TTIMX.
• reset bit, for reset of timer PV value.

above is simple example of TTIM timer when input bit of timer change off to ON than timer start decrementing SV value, when timer running and timer input bit is changed from on to off than timer stop operation and hold(store) timer PV value as it is. if again timer input bit changed from off to on than timer start decrementing from PV value and not from beginning. When timer PV value reached zero than timer stop operation stop and timer done bit is set to on. timer reset bit simple reset timer PV value.

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what is omron MTIM and MTIMX Instructions?

MTIM and MTIMX is multi-output timer MTIM is BCD type timer and MTIMX is binary type timer operates a 0.1sec incrementing timer with eight independent SVs and Completion Flags. in omron MTIM is MTIMX is only incrementing timer other timer decrementing SV.it also retain PV value if timer input state change while operation. When the PV reaches 9999, the PV will be reset to 0 and all of the Completion Flags will be turned OFF. If the reset bit is turned ON while the timer is operating or paused, the PV will be reset to 0 and all of the Completion Flags will be turned OFF. The set value is 0 to 999.9 s for MTIM(543) and 0 to 6,553.5 s for MTIMX(554), and the timer accuracy is 0 to 0.01 s.

above is the simple example of multi-output timer when timer input bit is set to ON than timer start operation and Timer PV value start incrementing from 0 to 9999 at 0.1 sec. in this timer timer done bit is set if Timer PV value is equal or greater than set value. timer PV value continue increment if the timer input is changed from on to off than PV Hold current value if again timer input state is changed so timer start incrementing from retained value.

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how to reset omron timer?

for reset of timer use treset Instructions, declare timer which you want to reset. in below image if the input of TRESET is set to on timer T0005 is reset.