Data record 4 for channel 4The example in the figure below shows the structure of data record 0 for channel 0. The
structure is identical for channels 1 to 4. The values in byte 0 and byte 1 are fixed and must
not be changed.
You enable a parameter by setting the corresponding bit to "1"The following table contains all measurement types of the inputs of the analog on-board I/O
with the corresponding codes. You must enter these codes in byte 2 of the data record for
the corresponding channel (refer to the figure Structure of data record 0: Bytes 0 to 6).
Table B- 1 Codes for measurement type
Measurement type Code
Deactivated 0000 0000
Voltage (valid for channels 0 to 3) 0000 0001
Current, 4-wire measuring transducer (valid for channels 0 to 3) 0000 0010
Resistance (valid for channel 4) 0000 0100
Thermal resistor linear (valid for channel 4) 0000 0111
Codes for measuring ranges
The following table contains all measuring ranges of the inputs of the analog on-board I/O
with the corresponding codes. You must enter these codes in each case in byte 3 of the data
record for the corresponding channel (refer to the figure Structure of data record 0: Bytes 0
to 6).
Table B- 2 Codes for measuring rangeThe values that can be set for hardware interrupts (high/low limit) must be within the nominal
range and overrange/underrange of the relevant measuring range.
The following tables list the permitted hardware interrupt limits. The limits depend on the
selected measurement type and measuring range. The parameters for the 2 analog output channels are located in data records 64 and 65 and
are assigned as follows:
● Data record 64 for channel 0
● Data record 65 for channel 1
Data record structure
The figure below shows the structure of data record 64 for channel 0 as an example. The
structure is identical for channel 1. The values in byte 0 and byte 1 are fixed and must not be
changed.
You enable a parameter by setting the corresponding bit to "1The following table contains all output types of the outputs of the analog on-board I/O with
the corresponding codes. You must enter these codes in each case in byte 2 of the data
record for the corresponding channel (see the previous figure).
Table B- 8 Codes for the output typeThe following table contains all output ranges for voltage and current of the outputs of the
analog on-board I/O with the corresponding codes. You must enter these codes in each case
in byte 3 of the corresponding data record (see previous figure)The following table lists all output ranges for the permitted substitute values. You must enter
these substitute values in each case in bytes 6 and 7 of the data record for the
corresponding channel (see the previous figure). You can find the binary representation of
the output ranges in the section Representation of output ranges (Page 203).
Table B- 10 Permitted substitute value for the output rangYou have the option of reassigning parameters for the digital on-board I/O in RUN (for
example, values for input delay of individual channels can be modified in RUN without
affecting the other channels).
Changing parameters in RUN
The parameters are transferred to the digital on-board I/O via data records 0 to 15 with the
WRREC instruction. The parameters set with STEP 7 (TIA Portal) are not changed in the
CPU, which means the parameters set in STEP 7 (TIA Portal) will be valid again after a
restart.
The parameters are only checked for plausibility after the transferIf errors occur when transferring parameters with the "WRREC" instruction, the digital onboard
I/O continues operation with the previous parameter assignment. However, a
corresponding error code is written to the STATUS output parameter.
You will find a description of the "WRREC" instruction and the error codes in the STEP 7
(TIA Portal) online help.The parameters per submodule for the 32 digital input channels are located in data records 0
to 15 and are assigned as follows:
First submodule (X11):
● Data record 0 for channel 0
● Data record 1 for channel 1
● …
● Data record 14 for channel 14
● Data record 15 for channel 15
Second submodule (X12):
● Data record 0 for channel 0
● Data record 1 for channel 1
● …
● Data record 14 for channel 14
● Data record 15 for channel 15The example in the figure below shows the structure of data record 0 for channel 0. The
structure is identical for channels 1 to 31. The values in byte 0 and byte 1 are fixed and must
not be changed.
You enable a parameter by setting the corresponding bit to "1".
The parameters per submodule for the 32 digital output channels are located in data records
64 to 79 and are assigned as follows:
First submodule (X11):
● Data record 64 for channel 0