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Configuring Bus I/Os
Menu Path
Figure 7-C-5
Bus I/O
Configuration
Number of Bus I/Os
Parameter
BUS AI
BUS AO
BUS DI
BUS DO
42/24-10 EN Rev. 9
MENU → Configure → System → Network → BUS IO
Changing the number of Bus I/Os will affect the Modbus address range, Profibus
image and Ethernet linking.
Reducing the number of Bus I/Os may cause transmission errors if the settings in
the communication partners are not matched. This may also cause damage in the
function block applications.
Function
Read Write Example
Bus
x
analog inputs
Bus
x
analog outputs
Bus
x
digital inputs
Bus
x
digital outputs
Chapter 7: Gas Analyzer Configuration
x
for analog value input into the function block
application
–
for analog value output from the function block
application
x
for control of functions such as auto calibration,
measurement range control after function block
configuration
–
for display of functions linked by function block
configuration, e.g. alarm signaling
7-C-15
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