Building a display from bit-mapped data (from UPS-MIB)
Tom Brennan <tom@dante.exide.com> Thu, 15 July 1993 17:50 UTC
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From: Tom Brennan <tom@dante.exide.com>
Message-Id: <9307151735.AA09287@dante.exide.com>
To: winsnmp@microdyne.com
Cc: ups-mib@cs.utk.edu
Subject: Building a display from bit-mapped data (from UPS-MIB)
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We in the UPS Vendor MIB effort are trying to determine the
usefulness of a proposed variable, which would allow what
we call a mimic screen to be drawn which shows the power
flow through the UPS, depending upon what the architecture
of the UPS is (based on a bit-mapped definition variable) and what
the current status of the UPS is (based on a similarly bit-mapped
status variable).
The question to the windows SNMP API group, particularly to
those developing network managers, is:
-- If we had such a bit-mapped variable, could your software
allow us to produce a mimic screen whose layout and coloring
or shading varied depending on which bits were set?
A sample mimic screen (drawn with dazzling e-mail graphics)
and the variable definition are shown below.
Your response to ups-mib@cs.utk.edu is appreciated.
Bypass Bypass UPS
Feed Breaker +---------------+ Output
---------| |-------| Static Switch |===========================
+---------------+ ||
||
Input Input ||
Feed Breaker+---------+ +----------+ ||
========|=|====| Charger |=====| Inverter |========//
+---||----+ +----------+
||
== Battery
|| Breaker
||
+---------+
| Battery |
+---------+
upsConfigMimicServices OBJECT-TYPE
SYNTAX INTEGER (0..65535)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Indication of what services are available from
the ups, so that a mimic screen may be drawn to
show power flow in the ups. This variable is a
bit-map of which elements should be present in
the mimic screen (corresponding bit is set if the
element is provided), while identically mapped
variable ups???MimicStatus reports the status of
each element (bit set if on/hot/closed).
Bits are (bit 1 is LSBit):
Bit # Description
1 Generator on Input
2 Separate Bypass Feed
3 Bypass Breaker
4 Static Switch
5 Boost Transformer
6 Input Feed
7 Input Breaker
8 Rectifier/Charger
9 Battery Breaker
10 Battery
11 Inverter
12 Inverter Output Breaker
13 Output/Load Breaker
14 Output/Load Supply
15 Parallel UPS
16 Logic Power"
Tom Brennan,
Exide Electronics