- Infinite Alarming & remote control unit User Guide SCOM-100
SCOM-100, User guide  32 
4.4.7 Digital output time based scheduling 
Multivibrator
A multivibrator is a continuous time based switching 
sequence as shown in the following diagram: 
Although the output’s switching is continuous, commands 
for temporary setting or resetting (1000, 1001) are also 
applicable and accepted by the device. The command to 
set a digital output as a multivibrator is: 
1040,m,n,mon,moff 
1040: Command ID 
m:  Module number (0 for SCOM-100 main 
unit, 1-8 for DI-42 I/O expansion units) 
n:   Output number (1-4 for SCOM-100 
main unit, 1-2 for DI-42 I/O expansion 
units) 
mon:  On duration in minutes (1-1320) 
moff:  Off duration minutes (1-1320) 
The ‘Clear DO configuration’ command can be used to 
remove the multivibrator configuration from an output 
(see 4.4.8). 










