5 analog signal alarming, 8 clearing the digital output configuration, 1 analog input configuration – Infinite Peripherals SCOM-100 User Manual
Page 18
SCOM-100, User guide
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4.4.8 Clearing the digital output configuration
The command clears any output configurations related with multivibrator or time
schedules:
1090,m,n,ID
1090: 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)
4.5 Analog signal alarming
4.5.1 Analog input configuration
The SCOM-100 analog inputs can be configured to initiate alarm SMS messages when
preset alarm limit conditions (low & high alarm limits) are met. A user configurable
scale can be defined to associate an analog input signal to physical units. The
configuration command is:
1200,m,n,s,SSL,SSH,SCL,SCH,ALL,ALH,u,d
1200: Command
ID
m:
Module number (0 for SCOM-100 main unit, 1-4 for AI-4 expansion
units)
n:
Input number (1-2 for SCOM-100 main unit, 1-4 for AI-4 expansion units)
s:
Input signal name (Text: 0-15 characters, may include space characters)
SSL:
Raw value reading for scale low (0-4095)
SSH:
Raw value reading for scale high (0-4095)
SCL:
Scale low in physical units (-100,000 to 100,000)
SCH:
Scale high in physical units (-100,000 to 100,000)
ALL:
Alarm low limit in physical units (Number in the range of SCL to SCH
with one optional decimal digit. Example: ALL = 52.3)
ALH:
Alarm high limit in physical units (number in the range of SCL to SCH
with one optional decimal digit. Example: ALH = 121.5)
u:
Physical unit (0-15 characters)
d:
Delay time in seconds (0-65535)
For example let us explain all the different parameter settings to use a 4-20mA, 0-10
bar pressure sensor wired on analog input 2 on the main unit (See section 2.4.2).
The pressure sensor characteristic is shown in the diagram below: