Siemens SITRANS F Coriolis FCT030 Function Manual page 101

Modbus Data type /
register Size in bytes
9591 Unsigned / 2
9281 Unsigned / 2
9261 Unsigned / 2
7431 Float / 4
7158 Float / 4
Channel 3 status output settings (relay)
Table 4-39 Channel 3 status output settings
Modbus Data type /
register Size in bytes
9141 Unsigned / 2
9158 Unsigned / 2
FCT030 Modbus (From firmware 4.0)
Function Manual, 06/2018, A5E39931813-AB
Parameter Description
Fail-safe activa‐ Fail-safe activation con‐
tion condition dition.
Fail-safe min. Minimum time the out‐
time put stays in fail-safe be‐
havior.
Fail-safe behav‐ Pulse output reaction in
ior case of a fault.
Only applicable if Re‐
dundancy mode (9280)
= 0.
Fail-safe value Output value in case of
a fault and when Fail-
safe behavior (9261) is
configured to 4.
Forced value Forced value when
forcing is active.
Parameter Description
Status mode Select the functionality
for the status output.
Alarm class Bit encoded selection
of alarm classes which
impact the status out‐
put. Each diagnostic
event is allocated to an
alarm class. See Alarm
items (Page 145).
Applicable if Status
mode = 0.
4.10 Modbus holding registers tables
Default value Value range /
[units] Setting options
(units register)
1 ● 0: Bad status of
selected process
value
● 1: Active
Maintenance alarm
or Failure (NAMUR)
0 0 - 100
[s]
0
● 0: Last valid value
● 1: Hold. Value 0.0
substitutes the actual
input value
● 2: Disabled
● 3: Custom value
0.0 0.0 - 12500.0
[pulses/s]
1.0 0.0 - 12500.0
[pulses/s]
Default value Value range /
[units] Setting options
(units register)
0
● 0: Alarm class
● 1: Alarm item
0
● Bit 0: Process value
alarm (PA)
● Bit 1: Process value
warning (PW)
● Bit 2: Maintenance
alarm (MA)
● Bit 3: Maintenance
warning (MW)
● Bit 4: Maintenance
required (MR)
● Bit 5: Function check
(FC)
MODBUS commands
Access
level
Read /
write
Read /
write
Read /
write
Read /
write
Read /
write
Access
level
Read /
write
Read /
write
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