Fema B Series, User Manual, Page: 5 / 36

FEMA ELECTRÓNICA . SERIES B . Models Bxx-RTU
5
1.5 Typical application
The typical application for this models of large format indus -
trial meters if to display numerical values associated to the
production or industrial processes. Display value is controlled
through the Modbus RTU protocol. Modbus RTU messages
are sent by the bus master, usually a PLC or a SCADA system.
The instrument can also integrate relay outputs, which
can be remotely controlled from the ‘master’ (‘Full slave’
working mode
(see section 1.21.2))
or locally controlled by
the instrument (‘Process slave’ working mode (see section
1.21.2)
).
Additional analog outputs can be also installed . See section
2 for a list of optional output and control modules available.
Modbus RTU
Relay 1
Relay 2
4/20mA
(isolated)
1.6 Factory configuration
Working mode ‘Full slave’ (‘F.SLV’)
Bus
Speed 19200 bps
Format 8n1
Configuration
Local address 1
‘Watchdog’ 10 seconds
‘On error’ flash (‘FLSh’)
Data length 16 bits
Alarm control by coil
Alarms in ‘Full slave’ mode
Alarm 1 remote (‘rMtE’)
Alarm 2 remote (‘rMtE’)
Alarm 3 remote (‘rMtE’)
Alarms in ‘Process slave’ mode
Alarms 1,2 and 3
Active disabled (‘oFF’)
Type maximum
Setpoint 1000
Hysteresis 0 counts
Activation delay 0.0 seconds
Deactivation delay 0.0 seconds
Setpoint 2 off
Inverted relay off
Locked alarms off
Tools
Fast access (Key UP) off
Bus activity off
Memory of maximum off
Memory of minimum off
Alarm 1 off
Alarm 2 off
Alarm 3 off
Address off
‘On Power Up’
Delay 0 seconds
Alarm 1 off
Alarm 2 off
Alarm 3 off
Setpoint on bus off
Decimal point remote (‘rMtE’)
Key ‘LE’ no function (‘none’)
Password off
Brightness 3