GMC-I Messtechnik GmbH 7
Relay Outputs
Limit values can be monitored for every measured or calculat
ed quantity. These limit values can be
assigned to the relay outputs.
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
assigne
d to one of the ana-
log outputs. Exception:
FF
T-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 po
ssible 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 interfac
es as standard equipment. The RS485 interface
is not included with the LON model due to space limitations.
The RS
232 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
d
etailed information regarding the generation of user specific programs. The RS485 field bus interface
allows for the interconnection of up to 32 instruments.
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