Alarm; Psstatuscmd; Truthvalues - Siemens RUGGEDCOM ROS v4.3 User Manual

RUGGEDCOM ROS
User Guide
Section 1.8.3.6

Alarm

The Alarm format is another form of text description. Alarm text corresponds to the alarm description from the
table holding all of the alarms. Similar to the Text format, this format returns an ASCII representation of alarms.
NOTE
Alarms are stacked in the device in the sequence of their occurence (i.e. Alarm 1, Alarm 2, Alarm 3,
etc.).
The first eight alarms from the stack can be returned, if they exist. A zero (0) value is returned if an alarm does not
exist.
Section 1.8.3.7

PSStatusCmd

The PSStatusCmd format describes a bit layout for providing the status of available power supplies. Bits 0-4 of the
lower byte of the register are used for this purpose.
• Bits 0-1: Power Supply 1 Status
• Bits 2-3: Power Supply 2 Status
Other bits in the register do not provide any system status information.
Bit Value
01
10
11
The values used for power supply status are derived from the RUGGEDCOM-specific SNMP MIB.
Reading the Power Supply Status from a Device Using PSStatusCmd
To understand how to read the power supply status from a device using PSStatusCmd, consider a ModBus Request
to read multiple registers from location 0x0043.
0x04
The response may look like:
0x04
The lower byte of the register displays the power supply's status. In this example, both power supplies in the unit
are functional.
Section 1.8.3.8

TruthValues

The Truthvalues format represents a true or false status in the device:
• 1 indicates the corresponding status for the device to be true
Alarm
0x00 0x43
0x02
Description
Power Supply not present (01 = 1)
Power Supply is functional (10 = 2)
Power Supply is not functional (11 = 3)
0x00
0x00
Chapter 1
Introduction
0x01
0x0A
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