JUMO 706560 LOGOSCREEN es Data Sheet - Manual (Page 7)

JUMO GmbH & Co. KG • 36035 Fulda, Germany Data Sheet 70.6560 Page 7/12
2009-12-14/00415638
Data processing
Data recording
The measurements of the analog inputs are
acquired continuously in a 125msec sam-
pling cycle. Based on these measure-
ments, reports are compiled and limits
monitored.
Depending on the programmable storage
cycle and stored value (maximum/
minimum/average or instantaneous value),
the measurements are transferred to the
main memory of the instrument.
Main memory (RAM)
The data which are stored in the RAM are
regularly copied to the internal memory in
10 kByte blocks. This is written to as a ring
memory, i.e. when the RAM is full, the old-
est data will automatically be overwritten
by new data. The storage capacity is suffi-
cient for 350,000 measurements.
The data from the main memory can be
shown as a history presentation on the pa-
perless recorder.
Internal memory
When a block of the main memory has
been filled it is copied to the internal mem-
ory. The internal memory has a capacity of
256 MByte.
Every write action is monitored, so that any
errors in saving data can be immediately
identified.
The instrument monitors the capacity of
the internal memory and activates one of
the "memory alarm" signals when the ca-
pacity has fallen below the configurable re-
sidual capacity level. These signals can be
used, for instance, to operate a relay.
CompactFlash memory card (external)
The external (replaceable) CompactFlash
memory card can be used to transfer the
data to a PC.
Data security
The data are stored in coded form in a pro-
prietary format. This ensures a high level of
data security.
If the paperless recorder is disconnected
from the supply, then:
– RAM and clock time are buffered by a
lithium battery (ex-factory) for more
than 4 years, or more than 2 days with
a storage capacitor
(at 15 to 25°C ambient temperature)
– measurement data in the internal
memory will not be lost
– configuration data are saved in the
non-volatile Flash memory
Recording duration
Depending on the configuration of the in-
strument, the duration of the recording can
vary over a considerable range (from a few
days up to several months).
Data transfer
Data transfer from the paperless recorder
to a PC is made by means of the external
CompactFlash memory card, via the serial
interface, or via the Ethernet interface.
Reports
For each input, a report (maximum/mini-
mum/average and integrator) can be run
over a pre-defined period.
Batch reports
Batch reporting can be performed in con-
junction with an external report. Start, end
and duration of a batch are recorded. To-
gether with a batch counter and freely de-
finable texts, these times can be displayed
on the paperless recorder and within the
PC evaluation software PCA3000.
Batch reporting can, for instance, be start-
ed by
– binary inputs 1 — 7
(extra code)
– Modbus flag
(serial interface)
– external binary inputs 1 — 6
(JUMO mTRON system)
Limit monitoring/
change of operating mode
Over/underlimit conditions trigger an
alarm. The alarm can be used, for instance,
as a control signal to switch the operating
mode from normal/timed operation to
event operation.
The storage cycle and stored value can be
configured separately for all three operat-
ing modes.
Wiht the help of the alarm delay function,
brief occurences of over/underlimit condi-
tions can be filtered out, with the result that
no alarm is produced.
Normal operation
If no alarm is present and the instrument is
not in timed operation, normal operation is
active.
Event operation
Event operation is activated/deactivated
by a control signal (log. input, group/com-
bination alarm, …). As long as the control
signal is active, the recorder is in event op-
eration.
Timed operation
Timed operation is active on a daily basis
for a programmable period of time. The op-
erating modes have different priorities:
Operating mode Priority
Event operation 1 (higher)
Timed operation 2
Normal operation 3 (lower)
A/D 2
A/D 1
CPU
Measurements
Working memory
Analog inputs
Internal
memory
256 MByte
External
CompactFlash
memory card
256 MByte
10kB
10kB
10kB 10kB
10kB