Fema Electronica K Series, Руководство пользователя, Страница: 3 / 32

FEMA ELECTRÓNICA . Series K . K40-232
3
1.1 How to order
1.2 ‘Process slave’ mode
In ‘
Full slave
’ mode, display value and alarm status are controlled
through the RS-232 bus.
• Alarms - alarm status (‘on’ / ‘off’) is controlled by writing on the
alarm status register (see section 1.20) .
• Analog outputs - analog output are manually configured
through the front keypad. Analog output signal is associated to
the display value.
Display
Alarms
Analog outputs
RS-232 ASCII
K40-232 display in ‘Full slave’ mode
1.3 ‘Full slave’ mode
In ‘ Process slave ’ mode, the instrument receives a numerical value
though the RS-232 bus. Alarms and analog outputs are locally con -
trolled by the instrument according to the alarm configuration and
display value.
• Alarms - alarm setpoint is manually configured through the
front keypad. Alarm activates or deactivates according to the
setpoint value configured and the display value. Relay outputs
are associated to alarms. To enable access to setpoint registers
through the communications bus, enable the ‘Setpoint on bus’
function
(see section 1.28.9)
.
• Analog outputs - analog outputs are manually configured
through the front keypad. Analog output value is associated to
the display value.
Display
Alarms
Analog outputs
RS-232 ASCII
K40-232 display in ‘Process slave’ mode
In ‘ Text ’ mode the instrument receives a set of ASCII characters
through the RS-232 bus. Characters are not treated as a numerical
value, but as a set of individual ASCII characters. Available characters
are described in section 1.21 . Alarm status are controlled through
the RS-232 bus
• Alarms - alarm status (‘on’ / ‘off’) is controlled by writing on the
alarm status register
(see section 1.20)
.
• Analog outputs - analog output are not available in this mode.
Reading
Alarms
RS-232 ASCII
K40-232 display in ‘Text’ mode
1.4 ‘Text’ mode
Display of numerical values associated to the production or industrial
processes. Display value is controlled through the RS-232 bus using
ASCII protocol. Messages are sent by the bus master, usually a PLC
or a SCADA system. Relay status can be controlled directly from the
PLC or locally from the instrument, depending on the configuration
of the instrument.
Re
lay 1
Re
lay 2
4/20mA
(isolated)
RS-232 ASCII
1.5 Typical application
K40 232
Model Power
-
Option 1 Others
H - - -
Option 2
-
Option 3
-
-R1
(1 relay)
-AO
(analog output)
-RTU
(Modbus RTU)
-S4
(RS-485)
-S2
(RS-232)
-T1
(1 transistor)
-SSR
(1 control SSR)
-
(empty)
-H
(85-265 Vac/dc)
-L
(11/60 Vdc,
24 Vac, 48 Vac)
-NBT
(no buttons)
-65
(front IP65)
-G
(green led)