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BA C7000 for EC Tower | EN | 01-2019 | 1000755
9.2.5 Bus overview
C7000AT "ME", at which this
display appears.
Symbol for a C7000AT
Symbol for a C7000IOC
Actual temperature
Actual humidity
Operating state
of the control
An alarm has
occurred on the
unit.
This unit cannot be reached.
Global address of the selected IOCs
Selected IOC + bus address
Operating state of the
control of the selected
IOCs
Stop cause
Example on de-energized IOCs or IOCS disconnected from the bus with data bus address 6
The AT with bus address 19 performs the following edits after IOC 6 is switched off:
This means that the AT 19 notices that IOC 6 was available in the bus before but cannot be reached now. If the miss-
ing unit is switched on again, the bus error is automatically removed for all bus participants. A bus error can also be
deleted by entering the command “iobusok” on the AT or IOC.
There is another way to delete a bus error on the AT and thus to apply
the current bus configuration.
For this, you highlight all of the units at the same time and then press
the OK button.
After entering the password (0000), the defective unit (Adr 6) is deleted
from the bus. The bus error disappears.
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