turck BL67 - Getting Started

Technology modules
D300529 0115 - BL67 I/O modules12-64
12.5.1 Getting started
The following section shows the general procedure for reading the count value:
1 Short parameterization (if necessary):
– If no external encoder power supply is used, the supply can be realized using output DO3
of the module.
To realize this, the parameter "function DO3" (byte 1, bit 2) has to be set to "1 = Encoder
power supply" (see
Module parameters, page 12-85).
– If no external encoder power supply is used, the input DI3 of the module can be used as
encoder-GND.
To realize this, the parameter "function DI3" (byte 1, bit 1) has to be set to "1 = Encoder
GND" (see Parameters of the counter module,
Module parameters, page 12-85).
2 Counter release:
– The count process is released by setting the process output bit "GATE" from 0 → 1 (see
Process output/control interface Byte 0, Bit 1, page 12-81).
→ Τhe counter is activated and the count process starts.
3 Read out the counter value
– The counter value can be read out from bytes 4 to 7 "
REG_RD_DATA" of the Process
input/status interface
(see page 12-81).
NOTE
For further information about the functions of BL67-1CNT/ENC (parameterization, process
image, internal registers etc.), please read the following pages.