Sm 335 Parameters For The Special Mode "Measuring Only"; Data Set 1 Of Sm 335 For The Special Mode "Measuring Only" - Siemens SIMATIC S7-300 Manual

3.3.4

SM 335 parameters for the special mode "Measuring Only"

Introduction
If operating the special mode "Measuring Only" is set, SM 335 only measures the analog
inputs within the free cycle without updating the analog outputs. For more information about
the "Measuring Only" mode, refer to chapter Special "Measuring Only" mode (Page 88).
Switchover
For information on the switchover to the special mode "Measuring Only", refer to chapter
Special operating modes of SM 335 (Page 77).
Data set 1
The dynamic parameters for the special mode "Measuring Only" can only be transferred by
way of SFC 55 "WR_PARM" or SFB 53 "WRREC".
NOTICE
The transfer always has to include the entire data set DS1 (bytes 0 to 13).
Note
With the exception of byte 11; the data set 1 parameters you transfer in order to change to
the "Measuring Only" mode must be identical with the parameters you transferred for the
free or conditional cycle mode.
Table 3- 14
Byte
0
1
2
3
4
5
6
7
8
9
10
11
12
13
SM 335 - High-speed analog mixed module for SIMATIC S7-300
Manual, 02/2009, A5E02409063-01

Data set 1 of SM 335 for the special mode "Measuring Only"

Content
Used as in the free and conditional cycle modes ( refer to chapter SM 335 parameters for
the free and conditional cycle modes (Page 49), table of the SM 335 parameters in data
set 1 (DS1)
Dynamic measuring cycle control
Used as in the free and conditional cycle modes ( refer to chapter SM 335 parameters for
the free and conditional cycle modes (Page 49), table of the SM 335 parameters in data
set 1 (DS1)
Data exchange with SM 335
3.3 Modifying SM 335 parameters in RUN
57