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