West Control Solutions DataVU 7 - Manual (Page 32)

2 Instrument Description
32
Alarms, analog
inputs The alarm monitoring states of the internal analog inputs are indicated by the
binary signals. Depending on the instrument hardware level, up to 18 internal
analog inputs are available. There are two binary alarm signals for each analog
input.
v Chapter 13 “Configuration - Analog Inputs”
Alarms,
counters/integr. The alarm monitoring states of the counters/integrators are indicated by the
binary signals. 27 counters/integrators are available. There are two binary
alarm signals for each counter/integrator.
Group alarms The binary signals are used to indicate whether an infringement of the
tolerance band is present within a group, or whether there is an alarm for an
analog or binary channel. The individual channel alarms are OR-linked.
Infringement of tolerance band, group 1 — 9
There are two binary signals for each group:
- Alarm1 TL Group 1 — 9 = positive tolerance band infringement on a
channel and
- Alarm2 TL Group 1 — 9 = negative tolerance band infringement on a
channel and
v Chapter 18.2 “Analog Channels”
Alarm group 1 — 9
There is a binary signal for each group:
- Alarm Group 1 — 9 = alarm for an analog or binary channel in the
corresponding group.
v Chapter 13.4 “Alarm configuration”
Alarms, ext.
Analoginputs The alarm monitoring states of the external analog inputs are indicated by the
binary signals. 24 external analog inputs are available. There are two binary
alarm signals for each external analog input.
v Chapter 13 “Configuration - Analog Inputs”
Combination
alarm “Combination alarm” includes the following signals:
Signal Description
Device alarm The signal is formed from an OR link of all alarm
configurations (e.g. alarm configuration of analog inputs and
binary inputs and outputs) and the PROFIBUS
communication error signal.
Mem.al.
Read CF The signal is activated when the device-internal memory
space available for data readout via CF card has fallen below
the selected threshold value.
v Chapter 2.10 “Reading out Data”
(Mem.al. = memory alarm)