AO2000 CONTINUOUS GAS ANALYZERS | OI/AO2000-EN REV. B 197
Configuring Bus I/Os
Menu path
MENU → Configure → System → Network → BUS IO
Number of Bus I/Os
Changing the number of Bus I/Os will affect the Modbus address range,
Profibus map and Ethernet linking.
Reducing the number of Bus I/Os may cause transmission errors if the set-
tings in the communication partners are not matched. This may also cause
damage in the function block applications.
Parameters
Parameter Function Read Write Example
BUS AI
Bus analog
inputs
x x for analog value input into the function block
application
BUS AO
Bus analog
outputs
x – for analog value output from the function
block application
BUS DI
Bus digital
inputs
x x for control of functions such as auto calibra-
tion, measurement range control after func-
tion block configuration
BUS DO
Bus digital
outputs
x – for display of functions linked by function
block configuration, e.g. alarm signaling
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