West Control Solutions DataVU 7 - Manual (Page 31)

31
2 Instrument Description
2.7 Binary Signals
Binary signals are used by the recorder, forexample to
- operate a relay,
- activate the Event operating mode,
- start external reports and
- start batch reports.
Binary signals are made visible as binary traces or switch symbols and can be
used as a basis for counters. The binary inputs (internal and external) are
binary signals.
Binary I/O The switching states of the internal binary inputs/outputs are indicated by the
binary signals. Depending on the instrument hardware level, 0, 8, 16 or 24
binary inputs/outputs are available.
v Chapter 14 “Configuration - Binary Inputs/Outputs”
Binary I/O alarm If the alarm configuration of an internal binary input/output is active, the
switching state is indicated through the corresponding binary signal. Please
note that the Alarm type must be configured for “Alarm”, and not for “Event”.
v Chapter 14.2 “Alarm Configuration”
Relays The switching states of the internal relays (1 or 7) are indicated by the binary
signals.
Limits (limit
monitoring) The result of the limit monitoring (limit 1 — 9) is indicated through the binary
signals.
v Chapter 20 “Configuration - Limit Monitoring”
Limit alarms If the alarm configuration of a limit monitoring is active, the alarm is indicated
through the corresponding binary signal. Please note that the Alarm type must
be configured for “Alarm”, and not for “Event”.
v Chapter 20.2 “Alarm Configuration”
Batch The binary signals are used to indicate whether the corresponding batch
report for plant 1 — 3 is active, i.e. whether a batch report is currently being
run.
Ext. binary input Binary signals are used to indicate the switching states of the external binary
inputs. Up to 24 external binary inputs are available.
v Chapter 17 “Configuration - External Binary Inputs”
Alarms, ext.
binary input If the alarm configuration of an external binary input is active, the switching
state is indicated through the corresponding binary signal. Please note that
the Alarm type must be configured for “Alarm”, and not for “Event”.
v Chapter 17.2 “Alarm Configuration”