114 AO2000 CONTINUOUS GAS ANALYZERS | OI/AO2000-EN REV. B
Standard terminal connections
Basic principles
The terminal connections are allocated
• in the order of the registered analyzer modules and
• within an analyzer module, in the order of the sample components.
The order of the analyzer modules and sample components is documented
in the analyzer data sheet and on the type plate. Beginning with analyzer
module 1 and sample component 1, the input and output functions are first
of all allocated in turn to available free connections of the I/O modules (slots
–X20 to –X29).
Profibus, Modbus
The slot of the optional Profibus module (see page 108) is always –X20.
The slot of the optional Modbus module (see page 109) is –X20, or –X22 if a
Profibus module is present.
Analog outputs
Analog outputs are available at the 2-way analog output module or the
4-way analog output module (see page 110). Analog output is allocated for
each sample component in the order of the sample components.
Alarm values
Alarm values are available at the Digital I/O module (see page 112) with the
standard function block application "Status signals/ext. calibration" (if the
gas analyzer has been set to collective status during the installation of an
analyzer module) or on the Digital I/O module with the standard function
block application "Alarm values". An alarm value is allocated for each sample
component in the order of the sample components.
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