AI 8xU/I/RTD/TC ST QI
● AI 8xU/I/RTD/TC ST S QI
● AI 8xU/I/RTD/TC ST MSI
An additional bit is assigned to each channel for the value status. The value status bit
indicates if the read in digital value is valid. (0 = value is incorrect).The following figure shows the address space allocation for the configuration as 8-channel
module. You can freely assign the start address for the module. The addresses of the
channels are derived from the start address.
"IB x" stands, for example, for the module start address input byte x. For the configuration as a 8 x 1-channel module, the channels of the module are divided into
multiple submodules. The submodules can be assigned to different IO controllers when the
module is used in a shared device.
The number of usable IO controllers depends on the interface module used. Observe the
information in the manual for the particular interface module.
Contrary to the 1 x 8-channel module configuration, each of the eight submodules has a
freely assignable start address.Address space for configuration as 8 x 1-channel AI 8xU/I/RTD/TC ST S QI with value
statusThe channels 0 to 7 of the module are copied in up to four submodules with configuration
1 x 8-channel module (Module-internal shared input, MSI). Channels 0 to 7 are then
available with identical input values in different submodules. These submodules can be
assigned to up to four IO controllers when the module is used in a shared device. Each IO
controller has read access to the same channels.
The number of usable IO controllers depends on the interface module used. Please observe
the information in the manual for the particular interface module.
Value status (Quality Information, QI)
The meaning of the value status depends on the submodule on which it occurs.
For the 1st submodule (= basic submodule), the value status 0 indicates that the value is
incorrect.
For the 2nd to 4th submodule (=MSI submodule), the value status 0 indicates that the value
is incorrect or the basic submodule has not yet been configured (not ready).Address space for configuration as 1 x 8-channel AI 8xU/I/RTD/TC ST MSI with value
statusAddress space for configuration as 1 x 8-channel AI 8xU/I/RTD/TC ST MSI with value
statusYou can find information on the Shared Input/Output (MSI/MSO) function in the section
Module-Internal Shared Input/Output (MSI/MSO) of the PROFINET with STEP 7 V13 The following figure shows the LED displays (status and error displays)
of AI 8xU/I/RTD/TC ST.The following tables explain the meaning of the status and error displays. Remedial
measures for diagnostic alarms can be found in section Diagnostic alarms.
RUN and ERROR LED
Table 5- 1 Status and error displays RUN and ERROR
LEDs Meaning RemedyAI 8xU/I/RTD/TC ST QI
● AI 8xU/I/RTD/TC ST S QI
● AI 8xU/I/RTD/TC ST MSI
An additional bit is assigned to each channel for the value status. The value status bit
indicates if the read in digital value is valid. (0 = value is incorrect).The following figure shows the address space allocation for the configuration as 8-channel
module. You can freely assign the start address for the module. The addresses of the
channels are derived from the start address.
"IB x" stands, for example, for the module start address input byte x. For the configuration as a 8 x 1-channel module, the channels of the module are divided into
multiple submodules. The submodules can be assigned to different IO controllers when the
module is used in a shared device.
The number of usable IO controllers depends on the interface module used. Observe the
information in the manual for the particular interface module.
Contrary to the 1 x 8-channel module configuration, each of the eight submodules has a
freely assignable start address.Address space for configuration as 8 x 1-channel AI 8xU/I/RTD/TC ST S QI with value
statusThe channels 0 to 7 of the module are copied in up to four submodules with configuration
1 x 8-channel module (Module-internal shared input, MSI). Channels 0 to 7 are then
available with identical input values in different submodules. These submodules can be
assigned to up to four IO controllers when the module is used in a shared device. Each IO
controller has read access to the same channels.
The number of usable IO controllers depends on the interface module used. Please observe
the information in the manual for the particular interface module.
Value status (Quality Information, QI)
The meaning of the value status depends on the submodule on which it occurs.
For the 1st submodule (= basic submodule), the value status 0 indicates that the value is
incorrect.
For the 2nd to 4th submodule (=MSI submodule), the value status 0 indicates that the value
is incorrect or the basic submodule has not yet been configured (not ready).Address space for configuration as 1 x 8-channel AI 8xU/I/RTD/TC ST MSI with value
statusAddress space for configuration as 1 x 8-channel AI 8xU/I/RTD/TC ST MSI with value
statusYou can find information on the Shared Input/Output (MSI/MSO) function in the section
Module-Internal Shared Input/Output (MSI/MSO) of the PROFINET with STEP 7 V13 The following figure shows the LED displays (status and error displays)
of AI 8xU/I/RTD/TC ST.The following tables explain the meaning of the status and error displays. Remedial
measures for diagnostic alarms can be found in section Diagnostic alarms.
RUN and ERROR LED
Table 5- 1 Status and error displays RUN and ERROR
LEDs Meaning Remedy