Address Space - Siemens SIMATIC ET 200SP Manual

See also
You can find additional information in the system manual ET 200SP distributed I/O system
(http://support.automation.siemens.com/WW/view/en/58649293).
4.4

Address space

Configuration options
The following configurations are possible:
● Configuration 1: Without value status
● Configuration 2: With value status
Evaluating the value status
If you enable the value status for the analog module, an additional byte is occupied in the
input address space. Bits 0 and 1 in this byte are assigned to a channel. They provide
information about the validity of the analog value.
Bit = 1: There are no errors on the module.
Bit = 0: Channel is deactivated or there is a fault on the module.
If a fault occurs on a channel with this module, the value status for all channels is 0.
Address space
The following figure shows the assignment of the address space for the AQ 2×I ST with
value status (Quality Information (QI)). The addresses for the value status are only available
if the value status is enabled.
Image 4-1
Analog output module AQ 2xI ST (6ES7135-6GB00-0BA1)
Manual, 12/2015, A5E36104864-AA
Address space of the AQ 2×I ST with value status
Parameters/address space
4.4 Address space
17