
Specifications are subject to change without notice CPT-DINADS110706
3
CPT-DIN
CptASoft softw are: parameter programming and data reading
Filtering parameters
Alarm variables
Alarm set-points and rele-
vant parameters
Variables to be connected
to the analogue outputs
Scaling of analogue outputs
Energies to be connected
to the pulse outputs
Parameters related to the
pulse outputs
Reset function: max/min
values, energies, dmd
By means of RS232 serial
port, RS485 serial port or RS232
configuration port (RJ12)
Data access
CptASoft
Multi language software to
program the working
parameters of the transducer
and to read the energies and
the instantaneous variables.
Compatibility with Windows
95/98/98SE/2000/XP.
Two different working
modes can be selected:
- management of a local
RS485 network;
- management of the
communication from single
instrument to PC (RS232);
System selection: 1-2-3
phases
CT/VT ratios
Working mode
Programming parameters
RS422/RS485
(on request)
Multidrop
bidirectional (static and
dynamic variables)
2 or 4 wires, max. distance
1200m, termination directly
on the instrument
From 1 to 255,
selectable via software
MODBUS/J BUS (RTU)
Connections
Addresses
Protocol
Data (bidirectional)
Dynamic (reading only)
System and phase variables:
see table “List of variables...”
All the configuration parameters.
1 start bit, 8 data bit,
no parity,1 stop bit
4800, 9600,
19200, 38400 bits/s
By means of optocouplers,
See table “Insulation
between inputs and outputs”
Static (writing only)
Data format
Baud-rate
Insulation
RS232
Type
Connections
Address
Protocol
Baud-rate
Halfduplex communication
Point to point connection
3-wire, max. distance 15m
1 to 255 selectable via software
MODBUS/J BUS (RTU)
4800, 9600, 19200,
38400 bits/s
other characteristics like
R422/RS485 port
Dupline
Bus
Address
Variables
Full Dupline compatibility
Programmable using CptASoft
kWh, kvarh + 8 variables
chosen among the
available ones.
By means of optocouplers.
See table “Insulation
between inputs and outputs”
Insulation
Output Specifications (cont.)
Connections
Baud-rate
Data format
RJ12 (3-wire) for special cable
4800 bits/s
1 start bit, 8 data bit,
no parity, 1 stop bit
Insulation
By means of optocouplers,
See table “Insulation
between inputs and outputs”
RS232 Configuration Bus
Transformer ratio
CT
VT (PT)
Filter
Operating range
1 to 60 000
1.0 to 6 000.0
0 to 100% of the
retransmitted scale
1 to 32
Measurements, alarms,
serial output
(fundamental variables: V, A,
W and their derived ones).
Filtering coefficient
Filter action
System selection
System 3, unbalanced
3-phase (3-wire, 4-wire)
3-phase ARON
2-phase (3-wire)
1-phase (2-wire)
3-phase (3-wire, 4-wire)
3-phase (3-wire) “1CT+1VT”
3-phase (3-wire) “1CT+3VT”
3-phase (4-wire) “1CT+1VT”
3-phase (4-wire), phase to
neutral voltage measurement
1-phase (2-wire)
System 3, balanced
System 1, balanced
Softw are functions