Data Exchange with the SM 335
3-7
SM 335 – High-Speed Analog Input/Output Module for the SIMATIC S7-300
6ES7 335-7HG00-8BA1
3.1.2
Output values
Principle
The analog output values converted into binary in the CPU can be transferred to
the SM 335 e. g., with the command “T PQW”.
The SM 335 converts the binary form of the analog output signals into analog sig-
nals and forwards them to the relevant outputs.
Configuration
The output values can be transferred to bytes ModAdd (module start address) to
7 (module start a 7).
See Configuring the SM 335 in HW Config from STEP 7 onwards for how to com-
pute the module start address.
Table 3-4
SM 335 Output Values
Byte
Content
0
High-order byte of the output value for analog output channel CH0
1
Low-order byte of the output value for analog output channel CH0
2
High-order byte of the output value for analog output channel CH1
3
Low-order byte of the output value for analog output channel CH1
4
High-order byte of the output value for analog output channel CH2
5
Low-order byte of the output value for analog output channel CH2
6
High-order byte of the output value for analog output channel CH3
7
Low-order byte of the output value for analog output channel CH3
Analog values
See Subsections 3.1.3 and 3.1.4 for information about how an analog value is rep-
resented in binary in the CPU and on which binary value corresponds to which
analog value.
