QB 5 Action Meaning
xxxx 0000 STOP (SW_GATE=0) Stop counting
xxxx 0001 Apply load value; STOP (SW_GATE=0) The load value is applied with a rising edge of bit 0 when
the counter is stopped
xxxx 1001 Apply load value; START (SW_GATE=1) The load value is applied with a rising edge of bit 0;
counting continues
xxxx x000 NOP No action
xxxx x001 Counter = load value Load load value into the counter as the count value
A.9.2.3 CFU DIQ: Address space of the submodule DIQ16 DC24V/0.5A
Abbreviations
● "IB" stands for input byte, that is, the submodule start address in the input area
● "QB" stands for output byte, that is, the submodule start address in the output area
● "DI" stands for digital input
● "DQ" stands for digital output
Address space
The following tables show the allocation of the CFU DIQ address space (DIQ submodule
without extended functions).
Input area
The table shows the allocation of the address space of the feedback interface.
Table A-15 Address space of the CFU DIQ with submodule "DIQ16 DC24V/0.5A"
IB x + 7 6 5 4 3 2 1 0
0 DI7 DI6 DI5 DI4 DI3 DI2 DI1 DI0
1 DI15 DI14 DI13 DI12 DI11 DI10 DI9 DI8
Output area
The table shows the allocation of the address space of the control interface.
Table A-16 Address space of the CFU DIQ with submodule "DIQ16 DC24V/0.5A"
QB x + 7 6 5 4 3 2 1 0
0 DQ7 DQ6 DQ5 DQ4 DQ3 DQ2 DQ1 DQ0
1 DQ15 DQ14 DQ13 DQ12 DQ11 DQ10 DQ9 DQ8
Appendix
A.9 Drivers, parameters, diagnostic messages and address space
SIMATIC CFU
Commissioning Manual, 08/2019, A5E39252870-AD 197