4-15
CM35 Counter Module
(4) J31069-D0416-U001-A5-7618
4.3.4
Reading the Data
The CM35 supplies the following data, based on the operating mode set.
Table 4-8
Data of the CM35
Operating Mode
Data
Data Type
Pulse counter
Current counting value
Word
Period duration measurement
Measured period duration
Word
Timer
Status of the timer
Byte
Positioning
Current actual position
DWord
For the allocation and description of the data of the CM35, see the descrip-
tion of the particular operating mode.
Remember the following points which concern the assurance of data consis-
tency based on the programmable controller used.
SIMATIC S7 (central or distributed)
Only one single
load command (L PIW or L PID) can be used to read the
desired value.
This means that an actual value in double--word format must be read with
one double--word access (L PID). Use of two word accesses (L PIW) can
cause data inconsistency in this case.
SIMATIC S5 or standard DP master (distributed)
Only
word--accesses to even addresses
may be used to read--access the de-
sired value.
Table 4-9 shows an example of the address allocation for reading the count-
ing values in
²
pulse counter
²
mode.
Table 4-9
Address allocation of the counting values for the
²
pulse counter
²
operat-
ing mode
Offset to
Module Start Address
Meaning
Value Range
+0
Counting value, channel 1
0 to 65535
+2
Counting value, channel 2
+4
Counting value, channel 3
+6
Counting value, channel 4
+8
Counting value, channel 5
+10
Counting value, channel 6
+12
Counting value, channel 7
+14
Counting value, channel 8
Data Communication with the CM35
Summary of Contents for SIMATIC CM35
Page 1: ...SIMATIC Counter Module CM35 Manual Release 06 2000 ...
Page 9: ...vi CM35 Counter Module 4 J31069 D0416 U001 A5 7618 Table of Contents ...
Page 10: ...1 1 CM35 Counter Module 4 J31069 D0416 U001 A5 7618 Product Overview 1 ...
Page 20: ...2 1 CM35 Counter Module 4 J31069 D0416 U001 A5 7618 Function Description 2 ...
Page 23: ...2 4 CM35 Counter Module 4 J31069 D0416 U001 A5 7618 Function Description ...
Page 47: ...3 24 CM35 Counter Module 4 J31069 D0416 U001 A5 7618 Commissioning ...
Page 48: ...4 1 CM35 Counter Module 4 J31069 D0416 U001 A5 7618 Data Communication with the CM35 4 ...
Page 70: ...5 1 CM35 Counter Module 4 J31069 D0416 U001 A5 7618 Pulse Counter Operating Mode 5 ...
Page 98: ...7 1 CM35 Counter Module 4 J31069 D0416 U001 A5 7618 Timer Operating Mode 7 ...
Page 112: ...8 1 CM35 Counter Module 4 J31069 D0416 U001 A5 7618 Positioning Operating mode 8 ...
Page 131: ...8 20 CM35 Counter Module 4 J31069 D0416 U001 A5 7618 Positioning Operating mode ...
Page 133: ...A 2 CM35 Counter Module 4 J31069 D0416 U001 A5 7618 Literature ...
Page 134: ...B 1 CM35 Counter Module 4 J31069 D0416 U001 A5 7618 EC Declaration of Conformity B ...
Page 135: ...B 2 CM35 Counter Module 4 J31069 D0416 U001 A5 7618 EC Declaration of Conformity ...
Page 141: ...Glossary 6 CM35 Counter Module 4 J31069 D0416 U001 A5 7618 Glossary ...