40 Process Image
WAGO I/O System 750
750-637 Incremental Encoder Interfaces
Manual
Version 1.6.1
Public
Table 32: Control Byte C0, All Versions, Except 750-637/000-004
Control Byte C0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
OpMode
SetLoad
Ext
RESET
OVER-
FLOW
RESET
UNDER-
FLOW
CNT_SET EN_LAT_
EXT
EN_LATC
EN_LATC
The initial point of the encoder is enabled
Capture Mode: On a positive edge at input C, the counter value is
transferred to the Latch register.
Preload Mode:
On a positive edge at input C, the counter value is
transferred to the Latch register.
The set value is loaded to the counter.
Confirmation is canceled on a negative edge at EN_LATC. EL_LATC is
dominant over EN_LAT_EXT.
EN_LAT_EXT
The external Latch input is enabled
Capture Mode: On a positive edge at the LATCH input, the counter
value is transferred to the Latch register.
Preload Mode:
On a positive edge at the LATCH input, the counter
value is transferred to the Latch register.
The set value is loaded to the counter.
Confirmation is canceled on a negative edge at EN_LAT_EXT.
CNT_SET
On a positive edge, the counter is initialized to the set value
RESET
UNDERFLOW
The UNDERFLOW status bit (S0.3) is reset on a positive edge.
RESET
OVERFLOW
The OVERFLOW status bit (S0.4) is reset on a positive edge.
SetLoad Ext
On a positive edge, the set value to which the counter is to be set
for an external event is transferred to the process data.
OpMode
OpMode
0:
Capture Mode: The counter is latched by a trigger signal
1:
Preload Mode: The counter is latched by a trigger signal.
The set value is then loaded to the counter.
0
Reserved