D300529 0115 - BL67 I/O modules
12-87
BL67-1CNT/ENC
Count direction 0 = up A Counter counts up (edge A
before B)
1 = down
Counter counts down (edge B
before A)
Signal evaluation (A, B) 00 = 1 x: rising edge at A Single signal evaluation at rising
edge at signal A
01 = 1 x: falling edge at A
Single signal evaluation at fall-
ing edge at signal A
10 = 2 x: both edges at A
A Single signal evaluation at rising
and falling edge at signal A
11 = 4 x: both edges at A and B
Fourfold evaluation at rising and
falling edge at signal A and B
(only incremental encoders)
Input filter (A,B) 00 = 500 kHz A Setting the input filter for Signal
A and B
01 = 50 kHz
10 = 5 kHz
11 = reserved
Invert input Z 0 =no A Signal Z not inverted
1 = yes
Signal Z inverted
Synchronization with Z 0 = single A If a signal is pending at Z and if,
at the same time, the bit SYN-
C_REQ = 1 (see control interface:
byte 1, bit 6), then the counter is
synchronized once with the
load value.
1 = periodical
If a signal is pending at Z and if,
at the same time, the bit SYN-
C_REQ = 1 (see control interface:
byte 1, bit 6), then the counter is
synchronized periodically with
the load value.
Encoder signal 0 = Push-pull input A Push-pull input (single ended):
signal evaluation between A, B,
Z and GND.
The inputs /A, /B and /Z are
internally connected to GND.
1 = RS422-input
RS422-input: signal evaluation
between A, B, Z and /A, /B, /Z
Table 12-12:
Parameters of the
BL67-1CNT/ENC
Parameter name Value Meaning
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