Using the EF-Series Unit
2-6 Rev 2/01
In addition to providing functionality for appending new events to the log, it allows host packages to
request the index of the most recently logged event entry. Event logging is available internally to the
system and to external host packages.
Event logs are not stored to flash ROM when the Save Configuration function is issued in the
ROCLINK Configuration Software. The event log operates in a circular fashion with new entries
overwriting the oldest entry when the buffer is full. The event log provides an audit trail history of
past operation and changes. The event log is stored separately to prevent recurring alarms from
overwriting configuration audit data.
2.3.3 Security
The EF-Series unit provides for security within the unit. A maximum of 16 log-on identifiers (IDs)
may be stored. In order for the unit to communicate, the log-on ID supplied to the ROCLINK
Configuration Software must match one of the IDs stored in the EF-Series unit. The Operator
Interface port (Security on LOI) has security Enabled by default. The host port Comm1 can likewise
be configured to have security protection, but is disabled by default. Refer to the ROCLINK software
user manual concerning the device security in the ROC menu.
2.3.4 Power Control
The Power Control function (called Radio Power Control in the ROCLINK software) is used with the
RS-232 communications card to provide power savings when using a radio or cell phone for
communications. Two modes of Power Control are possible: Second and Minute. In Second mode,
the time base for the timers is in 100 millisecond increments and is primarily used with radios. In
Minute mode, the time base for the timers is in 1 minute increments and is primarily used with cell
phones. Three cycling zones are provided (see Table 2-1 below for eFlow defaults), but zones can be
disabled as desired. The RS-232 card provides the switching mechanism by means of contacts (see
Section 3.5.1) or the DTR signal.
The Power Control function calculates which zone should be currently active. In Second mode, the
Power Control begins in the ON state and continues with a full On Time and then goes to the OFF state
for the full Off Time. In Minute mode, the Power Control determines if it should be ON or OFF and
how much time it needs until it switches.
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