Data Exchange with the SM 335
3-18
SM 335 – High-Speed Analog Input/Output Module for the SIMATIC S7-300
6ES7 335-7HG00-8BA1
3.3.2
SM 335 parameters in the Free Cycle and Conditional Cycle
Modes
Data Record 1 (DR1)
Data record 1 (DR1) of the SM 335 contains dynamic parameters (see Table 3-11)
.
The parameters are set via HW Config, or can be modified via system function 55.
Data record DR1 must always be completely transferred using system function 55.
Table 3-11
SM 335 parameters in Data Record 1 (DR1)
Byte
Content
Default
0
Interrupt and substitute value output
00
H
1
Reserved
00
H
2
Measuring range for analog input channel
CH0
19
H
3
Measuring range for analog input channel
CH1
19
H
4
Measuring range for analog input channel
CH2
depends on
measuring range mod-
l
tti
5
Measuring range for analog input channel
CH3
ule setting
(see Table 3-12)
6
Output range for analog output channel CH0
19
H
7
Output range for analog output channel CH1
19
H
8
Output range for analog output channel CH2
19
H
9
Output range for analog output channel CH3
19
H
10
Measuring cycle time
01
H
11
Dynamic measurement cycle control:
fixed in Free Cycle and
Conditional Cycle modes: 00
H
00
H
12
Open-wire test
00
H
13
Factor for interval counter monitoring time
(see Section 4.4)
00
H
