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34
Technical features
Software functions
29
5A connections
32
36
38
AV4-AV5-AV6-AV7: 5(10) A < 0.3VA
AV0-AV1-AV3-AV8-AV9: 20(90) A < 4VA
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Frequency
50 to 60 Hz.
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Interface modules technical features
RS422/RS485
(on request) Module AR2950
Type:
bidirectional multidrop (static and dynamic variables)
Connections:
2 or 4 wires, max. distance 1200m, termina-
tion directly on the instrument.
Addresses:
255, key-pad selectable.
Protocol:
MODBUS/JBUS;
Data (bidirectional):
dynamic (reading only); phase and
system variables: see table “Display variables” on page 20.
Static (writing only):
all the configuration parameters, ener-
gy reset, activation of static output.
Energy storing
(EEPROM): max. 99.999.999 kWh/kvarh
Data format:
1 start bit, 8 data bit, no parity, 1 stop bit.
Baud-rate:
9600 bit/s
Insulation:
by means of optocouplers, 2000 V
RMS
between
output and measuring inputs, 2000 V
RMS
between output
and power supply input.
Digital outputs
(on request) module AO2900
For energy retransmission, water and gas, static, remote
and alarm output. Three operating modes are selectable:
•
two pulse outputs (kWh and kvarh)
•
one alarm output (kWdmd) and one pulse output (kWh
kvarh)
•
one output remotely controlled by means of the serial
communication and one pulse output (kWh or kvarh).
Pulse outputs:
number of outputs 2; number of pulses from
