B&R Industries X20 System, Руководство пользователя

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X20 system modules • Counter modules • X20DC2395
814 X20 system User's Manual 3.10
4.11.14.12.6.2 Sample configurations
All of the settings available in Automation Studio for AB encoders, ABR encoders, up/down counters and event
counters are based on the two counter functions.
The following configuration examples show the values with which Automation Studio initializes the module registers
in order to implement these functions.
I/O configuration - AB encoder
The following table shows how the module's various event functions can be linked in order to configure an AB
encoder.
[x] stands for the respective counter function, either 1 or 2
Register Value Comment
For the function
CfO_Counter[x]config 0x01 Mode = Up/down counter
CfO_Counter[x]configReg0 0x0D Configure the calculation of the internal "counter1" and "counter2" registers
(see 4.11.14.12.6.1 "Counter value calculation" and "Examples of calculation
configurations")
For the latch
CfO_Counter[x]event0config 0x000D Configuration of the calculation of the first value used for the latch
CfO_Counter[x]event0mode 0x03 Mode of the first counter event function - Continuous
CfO_Counter[x]event0IDwr (any) Number of the event that should trigger Latch 1 ("Latch 01 - Channel" in the AS
I/O configuration).
CfO_Counter[x]event1config 0x0D Configuration of the calculation of the second value used for the latch
CfO_Counter[x]event1mode 0x03 Mode of the second counter event function - Continuous
CfO_Counter[x]event1IDwr (any) Number of the event that should trigger Latch 2
For the comparator
CfO_Counter1event1IDwr 0x00D0 Event number of Timer 1 (50 μs)
Information:
The latch and comparator must not have the same event number!
CfO_Counter1event1config 0x900D or 0xA00D Configuration of the comparator for the second counter event
CfO_Counter1event1mode 0x03 Mode of the second counter event function - Continuous
CfO_DIREKTIOoutevent0IDwr 0x0861 TRUE event output of the second counter to trigger the direct output function
(set outputs).
CfO_DIREKTIOoutsetmask0 0x08, 0x20, 0x80 Outputs that should be set when comparator condition = TRUE
CfO_DIREKTIOoutevent1IDwr 0x0860 FALSE event output of the second counter to trigger the direct output function
(reset outputs).
CfO_DIREKTIOoutclearmask1 0x08, 0x20, 0x80 Outputs that should be reset when comparator condition = FALSE