Infinite Peripherals SCOM-100 - Manual (Page 24)

SCOM-100, User guide 24
6. Device status & mode controls
6.1 Setting the device status
A SCOM-100 unit has three operation states:
1. The RUN (Control) state: The unit sends alarm SMS and accepts output control
commands. The Status LED is then on.
2. The MONITOR state: The unit sends alarm SMS. All outputs are reset to their
initial state. Output control commands are executed by storing the output states
internally. The actual output states are restored upon switching to the RUN state.
The Status LED is blinking.
3. The STOP state: The unit does not send SMS and rejects all output control
commands. All outputs are reset to their initial state. The Status LED is then off.
Configuration and monitoring commands are accepted and answered in all operation
modes.
6.1.1 RUN (Control) command
0100
The Status LED switches on and the unit enters the RUN (Control) state.
6.1.2 Monitor command
0110
The Status LED starts blinking and the unit enters the MONITOR state.
6.1.3 STOP command
0000
The Status LED switches off and the unit enters the STOP state.
6.2 Controlling the device status
A digital input can be used to switch between RUN and MONITOR mode for power
saving purposes.
1105,m,n,v
1105: Command ID
m: Module number (0 for SCOM-100 main unit, 1-8 for DI-42 I/O expansion
units)
n: DI input number (1-4)
v: Input state for switching to MONITOR mode (0,1).
The function can be deactivated with the ‘Clear DI configuration command (See 4.3.2).
6.3 Controlling the device response
6.3.1 Send acknowledgement SMS
The device sends a typical acknowledgement response SMS to all configuration
commands. The contained text in these SMS can be ‘COMMAND PROCESSED OK’
or ‘OK’ (according to the active answer mode Verbose or Brief) in case of successful
command execution or All acknowledgement SMS send by the device can be
cancelled using the command:
0621