Thursday, September 10, 2009

Definition Function Timer for PLC Programming





1. Timer for PLC Omron :

TIM - Countdown Timer
Timer PLC Omron
Purpose:
A timer is activated when its execution condition goes ON and is reset (to SV) when the execution condition goes OFF. Once activated, TIM measures in units of 0.1 second from the SV.

If the execution condition remains ON long enough for TIM to time down to zero, the Completion Flag for the TC number used will turn ON and will remain ON until TIM is reset (that is, until its execution condition goes OFF).

Ranges:

N : TC Number --> 000 - 511
SV : Set value (word, BCD) -->IO, AR, DM, HR, #

2. Timer for PLC Mitsubishi :

T - CountUp Timer
Timer PLC Mitsubishi
Purpose:
A timer is activated when its execution condition goes ON and is reset (to Zero) when the execution condition goes OFF. Once activated, T measures in units of 0.1 second from the SV.

If the execution condition remains ON long enough for T to time Up to SV, the Completion Flag for the T number used will turn ON and will remain ON until T is reset ( Actual Time =0 ) (that is, until its execution condition goes OFF).

Ranges:

N: T Number 000 - 199
SV: Set value --> k0 - k9999

3. Timer for PLC Keyence :

T or TMR - Countdown Timer
Timer PLC Keyence
Purpose:
A timer is activated when its execution condition goes ON and is reset (to SV) when the execution condition goes OFF. Once activated, T measures in units of 100ms or 0.1 second from the SV.

If the execution condition remains ON long enough for T to time down to zero, the Completion Flag for the TC number used will turn ON and will remain ON until T is reset (that is, until its execution condition goes OFF).

Ranges:

n : TC Number --> 000 - 249
S : Set value --> #0 to 65535

See : Simulation How to Work Timer for PLC Omron

See : Simulation How to Work Timer for PLC Mitsubishi

See : Simulation How to Work Timer for PLC Keyence



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