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Siemens SIMATIC SM 335 Manual Page 42

High-speed analog input/output module for the simatic s7-300.
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Data Exchange with the SM 335
Configuration
The input values are located in bytes ModAdd (module start address) to Mo-
dAdd + 15. See the SIMATIC Programmable Logic Controller, S7-300 Module Data
Reference Manual for information about how to compute the module start address.
Table 3-1 lists the input values, their addresses, and their default values.
Table 3-1
Byte
ModAdd + 0
ModAdd + 1
ModAdd + 2
ModAdd + 3
ModAdd + 4
ModAdd + 5
ModAdd + 6
ModAdd + 7
ModAdd + 8
ModAdd + 9
ModAdd + 10 High-order byte of the sensor voltage (see Subsec-
ModAdd + 11 Low-order byte of the sensor voltage (see Subsec-
ModAdd + 12 Interval counter (see Section 4.5)
ModAdd + 13 Interval time values in bits 16 to 24 (see Section 4.5)
ModAdd + 14 Interval time values in bits 8 to 15 (see Section 4.5)
ModAdd + 15 Interval time values in bits 0 to 7 (see Section 4.5)
*)
Initial value
**)
factory-set
***) current value
Analog values (ModAdd + 0...7)
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.
3-4
SM 335 Input Values
High-order byte of the measuring value from measuring
channel CH0
Low-order byte of the measuring value from measuring
channel CH0
High-order byte of the measuring value from measuring
channel CH1
Low-order byte of the measuring value from measuring
channel CH1
High-order byte of the measuring value from measuring
channel CH2
Low-order byte of the measuring value from measuring
channel CH2
High-order byte of the measuring value from measuring
channel CH3
Low-order byte of the measuring value from measuring
channel CH3
Number of end-of-cycle interrupts, only for "Comparator"
and "Measuring Only" modes
Default = 1;
If end-of-cycle interrupts have been suppressed:
1 + number of suppressed end-of-cycle interrupts
Comparator mode (on power-up) or Return code for
"Comparator" and "Measuring Only" modes.
tion 2.5.1)
tion 2.5.1)
SM 335 – High-Speed Analog Input/Output Module for the SIMATIC S7-300
Content
Value
7F
*) or ***)
H
FF
*) or ***)
H
7F
*) or ***)
H
FF
*) or ***)
H
7F
*) or ***)
H
FF
*) or ***)
H
7F
*) or ***)
H
FF
*) or ***)
H
00
*) or ***)
H
00
*) or
H
01
*) or ***)
H
**)
**)
00
*) or ***)
H
FF
*) or ***)
H
FF
*) or ***)
H
FF
*) or ***)
H
6ES7 335-7HG00-8BA1

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