ABB DO890 3BSC690074R1 S800 I/O module

Description

All I/O modules can be exchanged online and with the process power supply
connected, except for relay outputs with normally closed contacts. This is possible
because the module deactivates when the I/O module lock switch is turned to
unlock.
The system software in the ModuleBus master checks automatically that all I/O
modules function correctly. In the event of module fault, and module exchange, the
module and associated signals are marked as faulty.

The system software checks that the module that is inserted is correct. If this is the
case, the F(ault) LED is turned off, and after the initial configuration, and the R(un)
LED activated, and the module resumes its normal function.
The following topics contain general instructions for replacement of modules, and
Table 7 gives additional information about handling the replacement of individual
modules.
Practical Execution
Before replacing the faulty I/O module:
1. Refer to S800 I/O Getting Started (3BSE020923*) manual.
2. As special restrictions apply to each module type, see the descriptions in
Table 7 for useful information on individual module types.
3. Check if the new module can be a suitable replacement.
Replacement of an S800 I/O module affects all channels on the module.

Details: If you need an urgent delivery order, please feel free to contact us, and we will do our best to meet your needs.
Price issue: If you find that other suppliers offer a cheaper price for the same product, we are also willing to provide you with a reference price and give you further discounts.
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