Siemens Simatic S7-1500 Manual page 164

Parameter data records
B.7 Parameter data records of the high-speed counters
Table B- 15 Parameter data record 128 - Hardware interrupts
Bit →
7
Byte
8 Reserved = Reserved =
0 0
1)
9 Synchroni- New cap-
zation of the ture value
counter by available
an external
signal
Reserved bits must be set to 0
1)
Table B- 16 Parameter data record 128 - Behavior DQ0/1
Bit →
7
Byte
10 Set output (DQ1):
0000 : Use by user program
B
0001 :
B
Counting: Between comparison value 1 and high limit;
Measuring: Measured value >= Comparison value 1
0010 :
B
Counting: Between comparison value 1 and low limit;
Measuring: Measured value <= Comparison value 1
0011 :
B
Counting: At comparison value 1 for one pulse dura-
tion;
Measuring: Reserved
0100 : Between comparison value 0 and 1
B
0101 :
B
Counting: After set command from CPU until compari-
son value 1;
Measuring: Reserved
0110 :
B
Counting: Reserved
Measuring: Not between comparison value 0 and 1
0111 to 1111 : Reserved
B
11 Count direction (DQ1):
00 : Reserved
B
01 : Up
B
10 : Down
B
11 : In both directions
B
164
6 5
Reserved =
0
1) 1)
Reserved =
0
1)
6 5
Count direction (DQ0):
00 : Reserved
B
01 : Up
B
10 : Down
B
11 : In both directions
B
4 3
Hardware interrupts
1)
Direction Underflow
reversal (low count-
ing limit
violated)
Zero cross- Reserved =
ing 0
1)
4 3
Behavior of DQ0/1
Set output (DQ0):
0000 : Use by user program
B
0001 :
B
Counting: Between comparison value 0 and high limit;
Measuring: Measured value >= Comparison value 0
0010 :
B
Counting: Between comparison value 0 and low limit;
Measuring: Measured value <= Comparison value 0
0011 :
B
Counting: At comparison value 0 for one pulse duration;
Measuring: Reserved
0100 : Reserved
B
0101 :
B
Counting: After set command from CPU until compari-
son value 0;
Measuring: Reserved
0110 to 1111
Reserved = 0
2 1
Overflow Gate stop
(high count-
ing limit
violated)
Comparison Reserved =
event for 0
1)
DQ1 oc-
curred
2 1
: Reserved
B
Substitute
1)
value for
DQ1
CPU 1512C-1 PN (6ES7512-1CK00-0AB0)
Manual, 09/2016, A5E35306440-AB
0
Gate start
Comparison
event for
DQ0 oc-
curred
0
Substitute
value for
DQ0