model 2704 controller installation and operation handbook - Soliton

Totaliser, Timer. Clock, Counter Operation
2704 Controller
12.2. TIMER TYPES
Each timer block can be configured to operate in four different modes. These modes are
explained below
12.2.1. On Pulse Timer Mode
This timer is used to generate a fixed length pulse from an edge trigger.
• The output is set to On when the input changes from Off to On.
• The output remains On until the time has elapsed
• If the ‘Trigger’ input parameter recurs while the Output is On, the Elapsed Time will reset
to zero and the Output will remain On
• The triggered variable will follow the state of the output
Figure 12.1 illustrates the behaviour of the timer under different input conditions.
Input
Output
Time
Time
Elapsed Time
Triggered
Input Interval >
Ti
Input
Output
Time
Elapsed Time
Triggered
Figure 12-1: On Pulse Timer Under Different Input Conditions
12-4 Installation and Operation Handbook. Part No HA026502 Issue 1.0 Apr-00