KROHNE ALTOSONIC V12 EN - Manual (Page 129)

MODBUS PROTOCOL DESCRIPTION AND SET-UP
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ALTOSONIC V12
www.krohne.com 04/2013 - 4002643502 - MA ALTOSONIC V12 R02 en
Alarm / status events
Relative
address Absolute address Name Parameter /
Variable
(short
description)
non-Modicon Modicon-comp. Register Bit
1 5001 5002-5003
(2 regs)
Alarm&
Status Pipe
A FailAll
(bit 0)
Down all
channels,
no custody
transfer
standard
(FAILED)
Alarm flag indicating none of the acoustic paths is
operational.
1 5001 5002-5003
(2 regs)
Alarm&
Status Pipe
A Fail
Unreliable
(bit 1)
Down Channels,
Custody Transfer
unreliable
(FAILED)
Alarm flag indicating some paths out of operation, reading
NOT valid for custody transfer NOT valid for custody transfer NOT valid for custody transfer NOT valid for custody transfer measurement.
1 5001 5002-5003
(2 regs)
Alarm&
Status Pipe
A Fail
Reliable
(bit 2)
Down Channels,
but Custody
Transfer
reliable
Alarm flag indicating some paths out of operation, reading
valid for custody transfer valid for custody transfer valid for custody transfer valid for custody transfer measurement.
1 5001 5002-5003
(2 regs)
Alarm&
Status Pipe
A OOR_Flow
(bit 4)
Out of range
FLOW
Status signal flow rate is out of range, activated at
overspeeding by 25%.
1 5001 5002-5003
(2 regs)
Alarm&
Status Pipe
A OOR_
Reynolds
(bit 5)
Correction
out of range
REYNOLDS
Alarm flag indicating Reynolds number out of range.
1 5001 5002-5003
(2 regs)
Alarm&
Status Pipe
A OOR_
Substit
(bit 6)
Correction
out of range
PATH
SUBSTITUTION
Alarm flag indicating gas velocity is out of range where
path substitution can be applied.
This signal only appears in case of active path substitution
(at least one path failing) and gas velocity
is out min/max limits OR Reynolds number is out of
min/max limits OR no valid velocity profile is available.
1 5001 5002-5003
(2 regs)
Alarm&
Status Pipe
S Flow_
Direction
(bit 16)
Flow direction
Status signal indicating flow direction:
0 = Forward flow
1 = Reverse flow
1 5001 5002-5003
(2 regs)
Alarm&
Status Pipe
S LowFlow
CutOff
Low flow
cut-off
Status signal indicating low flow cut-off:
0 = Flow velocity above threshold.
1 = Flow velocity below threshold.