GMC-I Messtechnik GmbH
7
Relay Outputs
Limit values can be monitored for every measured or calculated quantity. These limit values can be
assigned to the relay outputs.
Pulse Outputs
22
R
L
+
20
21
U
t
U
t
External Voltage Source
R
L
S02
S01
e.g. Energy Import
e.g. Energy Export
Pulse Outputs:
The values for measured
reactive and active energy
can be read out at the
pulse outputs in the form of
standard S0 pulses for the
driving of electromechani-
cal counting mechanisms.
Analog Outputs
Each measured or calcu-
lated quantity can be
assigned to one of the ana-
log outputs. Exception:
FFT-values, which can only
be read out via the RS-232
and RS-488 interfaces.
This allows for the logging or driving of secondary control loops. The outputs can be configured as volt-
age or current outputs with the help of the DIP switches.
Analog Inputs
The 2 inputs can be configured separately via DIP switch for 10 V, 20 mA or Pt1000 signal. Adjusting
the possible signal input ranges as well as scaling and evaluation of measured values and the associ-
ated maximum values can be done via the operating panel and the RS232 and RS485 interfaces.
Communications Interfaces
The A2000 is provided with RS232 and RS485 interfaces as standard equipment. The RS485 interface
is not included with the LON model due to space limitations.
The
RS232 interface
allows for the transmission of measurement values from the A2000 to a PC, as well
as external instrument configuration. The chapter entitled “Interface Description” on page 44 provides
detailed information regarding the generation of user specific programs. The
RS485
field bus interface
allows for the interconnection of up to 32 instruments.
