B&R Industries X20 System, User Manual

Page: 876 / 2720

X20 system modules • Counter modules • X20DC4395
876 X20 system User's Manual 3.10
I/O configuration - Up/down counter
The following table shows how the module's various event functions can be linked in order to configure an up/
down counter.
[x] stands for the respective counter function, from 1 to 4
Register Value Comment
For the function
CfO_Counter[x]config 0x03 Counter mode = Up/down counter
CfO_Counter[x]configReg0 0x0D, 0x07 Configure the calculation of the internal "counter1" and "counter2" registers
(see 4.11.17.12.6.1 "Counter value calculation" and "Examples of calculation
configurations")
For the latch
CfO_Counter[x]event0config 0x0D, 0x07 Configuration of the calculation of the first value used for the latch
CfO_Counter[x]event0mode 0x03 Mode of the first counter function - Continuous
CfO_Counter[x]event0IDwr (any) Number of the event that should trigger Latch 1
CfO_Counter[x]event1config 0x0D, 0x07 Configuration of the calculation of the second value used for the latch
CfO_Counter[x]event1mode 0x03 Mode of the second counter function - Continuous
CfO_Counter[x]event1IDwr (any) Number of the event that should trigger Latch 2
For the comparator
CfO_Counter1event1IDwr
CfO_Counter3event1lDwr
0x00D0 Event number of Timer 1 (50 μs)
Information:
The latch and comparator must not have the same event number!
CfO_Counter1event1config
CfO_Counter3event1config
0x900D, 0xA00d or 0x9007, 0xA007 Configuration of the comparator for the second counter event
CfO_Counter1event1mode
CfO_Counter3event1lmode
0x03 Mode of the second counter event function - Continuous
CfO_DIREKTIOoutevent0IDwr
CfO_DIREKTIOoutevent2lDwr
0x0861 TRUE event output of the second counter to trigger the direct output function
(set outputs).
CfO_DIREKTIOoutsetmask0
CfO_DIREKTIOoutsetmask2
0x08, 0x20, 0x80
0x02, 0x08, 0x80
Outputs that should be set when comparator condition = TRUE
CfO_DIREKTIOoutevent1IDwr
CfO_DIREKTIOoutevent3lDwr
0x0860
0x0A60
FALSE event output of the second counter to trigger the direct output function
(reset outputs).
CfO_DIREKTIOoutclearmask1
CfO_DIREKTIOoutclearmask3
0x08, 0x20, 0x80
0x02, 0x08, 0x80
Outputs that should be reset when comparator condition = FALSE
I/O configuration - Event counter
The following table shows how the module's various event functions can be linked in order to configure an event
counter.
[x] stands for the respective counter function, from 1 to 4
Register Value Comment
For event counters on channels 1, 3, 5 and 7
CfO_Counter[x]configReg0 0x01 or 0x03 Configure the calculation of the internal "counter1" and "counter2" registers
(see 4.11.17.12.6.1 "Counter value calculation" and "Examples of calculation
configurations")
CfO_Counter[x]event0mode 0x43 Mode of the first counter event function and referencing configuration
CfO_Counter[x]event0IDwr (any) Number of the event that should trigger referencing
For event counters on channels 2, 4, 6 and 8
CfO_Counter[x]configReg1 0x04 or 0x08 Configure the calculation of the internal "counter1" and "counter2" registers
(see 4.11.17.12.6.1 "Counter value calculation" and "Examples of calculation
configurations")
CfO_Counter[x]event1mode 0x83 Mode of the second counter event function and referencing configuration
CfO_Counter[x]event1IDwr (any) Number of the event that should trigger referencing