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6.3
Starting and Stopping the Measuring Channels
Table 6-6
Start/stop block
Address
Name
Start_Stop_Block
+0.0
Start_Stop_Chan_1
+0.1
Start_Stop_Chan_2
+0.2
Start_Stop_Chan_3
+0.3
Start_Stop_Chan_4
+0.4
Start_Stop_Chan_5
+0.5
Start_Stop_Chan_6
+0.6
Start_Stop_Chan_7
+0.7
Start_Stop_Chan_8
+1.0
CoordinationByte
=2.0
CM35 Counter Module
(4) J31069-D0416-U001-A5-7618
After parameterizing the module, you can start and stop the individual mea-
suring channels of the CM35. To do this, write the start/stop block to address
²module start address + 2.²
Table 6-6 shows the contents of the start/stop block. The required assign-
ment of the coordination byte is entered as an initial value in the structure.
For a description of the bit assignment of the coordination byte, see chapter
4.3.1.
Type
STRUCT
BOOL
BOOL
BOOL
BOOL
BOOL
BOOL
BOOL
BOOL
BYTE
END_STRUCT
Example:
The CM35 has the module start address 256.
L
W#16#0382
T
PQW 258
to
...
L
W#16#0182
T
PQW 258
Period Duration Measurement Operating Mode
Initial Value
FALSE
0: Stop channel
1 S
1: Start channel
FALSE
FALSE
FALSE
FALSE
FALSE
FALSE
FALSE
B#16#82
Start/stop byte enable = 1
²Period duration measurement²
// Start channels 1 and 2
// Module start address + 2
// Stop channel 2/
channel 1 still active
// Module start address + 2
Commentary
h
l
C bit = 0
mode
6-7
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