Load Register - Siemens SIMATIC S5 IP 281 Equipment Manual

R 11192

Load Register

3.3
Each counter is equipped with a load register. A defined value (load value), which is used to load
the counter for certain events, can be stored in this register.
The load register can be written atall times (except with operating mode TCLR). It cannot be read
back.
The load value is entered as a 16–bit or 32– bit value in the register (depending on the counting
mode set).
The following methods can be used to enter the values in the load register.
– Writing the load register from the PLC
– Transfer when in TCLR operating mode (+ section 6.4.3)
Contents of the register after RESIX O

Load register 1/2

31
15
For counting modes 1 and 3 (16–bit):
For counting modes 2 and 4 (32–bit):
Offset 4
@SiemensA(31992, Order No: 6ES5998-0KP21
.
30 29 28 27 26 25 24
13 12 11 10 9 8
Byte 1
Byte 3
5 Byte 2
6 Byte 1
7 Byte O
Software Settings
23 22 21 20 19 18 17
7 6 5 4 3 2 1
Byte O
216
16
0
3 – 5