Siemens SITRANS F Series, Руководство по эксплуатации, Страница: 217 / 362

Modbus communication
A.9 Modbus holding registers tables
SITRANS F Ultrasonic flowmeters FST030 (Modbus)
Operating Instructions, 08/2017, A5E37367739-AC
215
Modbus
register
Data type /
Size in bytes
Parameter Description Default value
[units]
(units regis-
ter)
Value range /
Setting options
Access
level
8854 Unsigned / 4 Alarm items 7 Bit encoded selection
of alarm items that
impact the output. See
Alarm items
(Page 295). Applicable
if Status mode = 1.
0 Read /
write
8852 Unsigned / 4 Alarm items 6 Bit encoded selection
of alarm items that
impact the output.
Mainly simulation
alarms. See Alarm
items (Page 295).
Applicable if Status
mode = 1.
0 Read /
write
8859 Unsigned / 2 Polarity Logical polarity of sta-
tus output.
0
• 0: Active high level
•
1: Active low level
Read /
write
8860 Float / 4 On delay Time to delay the lead-
ing edge of the output.
0.0
[s]
0.0 - 100.0 Read /
write
8862 Float / 4 Off delay Time to delay the trail-
ing edge of the output.
0.0
[s]
0.0 - 100.0 Read /
write
7148 Unsigned / 2 Forced value Forced value when
forcing is active.
0
•
0
• 1
Read /
write