Bronkhorst Multibus - Manual (Page 27)

BRONKHORST ®
Page 27 Operational instructions for digital multibus instruments 9.17.023
Data Type Range read/write Secured DDE Proc/par
6.3 A
LARM INFO
unsigned char 0…255 R N 28 1/20
This parameter contains 8 bits with status information about some (alarm) events in the instrument.
Bit low (0) High (1)
0 no error An error occurred: Alarm register 2 contains an error
1 no error A warning occurred: Alarm register 1 contains a warning
2 no error Minimum alarm: Sensor signal < minimum limit
3 no error Maximum alarm: Sensor signal > maximum limit
4 no error Batch counter: Reached its limit
5 no error This bit only: Power-up alarm (probably power dip occurred)
Together wit bit 2 or bit 3: Response alarm message
(setpoint-measure too much difference)
(bit 2 or bit 3 indicate if difference is positive or negative)
6 no error Master/slave alarm: master output signal not received or slave factor out of
limits (> 100%)
7 no error Hardware alarm: check hardware
6.4 A
LARM MODE
unsigned char 0…3 RW N 118 97/3
Available alarm modes for device:
Bit Description
0 Off
1 alarm on absolute limits
2 alarm on limits related to setpoint (response alarm)
3 alarm when instrument powers-up (e.g. after power-down)
Not all modes are available for all field busses. E.g. for DeviceNet only mode 0 and 1 are available.
6.5 A
LARM MAXIMUM LIMIT
unsigned int 0…32000 RW N 116 97/1
Maximum limit for sensor signal to trigger alarm situation (after delay time).
Minimum limit ≤ Maximum limit ≤ 100%
6.6 A
LARM MINIMUM LIMIT
unsigned int 0…32000 RW N 117 97/2
Minimum limit for sensor signal to trigger alarm situation (after delay time).
0% ≤ Minimum limit ≤ Maximum limit
6.7 A
LARM SETPOINT MODE
unsigned char 0…1 RW N 120 97/5
Available alarm setpoint modes for device:
Value Description
0 no setpoint change at alarm
1 new/safe setpoint at alarm enabled (set at alarm new setpoint)
6.8 A
LARM NEW SETPOINT
unsigned int 0…32000 RW N 121 97/6
New/safe setpoint during alarm situation until reset.