Multi-Tech Systems 7500 - Manual (Page 151)

ION 7500 / ION 7600 User’s Guide Logging and Recording Capacity
Chapter 5 - Features and Applications Page 151
External ION Events
Some events are not produced by a specific module; they are generated internally
by the meter. These events and their associated priority levels are shown in the
table below.
Logging and Recording Capacity
The meter provides both data and event logs, but the amount of memory required
to store these logs depends on the number of parameters being logged and the
frequency with which these parameters are logged. The following equation can
help determine the amount of memory required to store data and event logs:
each record consumes (in Bytes) = ((number of parameters * 5) + 8)
The meter can also perform waveform recording. It can simultaneously capture
events on all channels to a maximum of 96 cycles each. To calculate the waveform
memory usage use the following formula:
waveform memory usage (in Bytes) = (2*(number of samples per cycle) +
10)*(number of cycles in waveform) + 30
N OTE
Round up to the next kilobyte after each of the above calculations.
Event Group Description Priority Number
Warning
Factory initialize performed
30
Firmware or memory upgrade performed
Meter power-up or power-down
Internal modem not responding or modem recovered
Battery low
Telnet or serial terminal locked out
Security disabled or enabled
Failure Communications fail to allocate required memory 255