-
Reset encoder counter: The encoder counter is reset to zero once the extern
"HR" signal has been triggered
-
Latch encoder counter: This mode is similar to the index latch. A rising or
falling edge (can be configured) input signal at the "HR" channel causes in a
hardware latch of the current encoder value.
The extern latch function can be disable. By default it is disabled.
Assign the objects 0x1An1 and 0x16n1 to the process data.
TwinCAT allows the selection of the latch object by selecting one of the predefined PDO
assignment which contains the "Index latch" or "Extern latch" keywords from the list
box:
The following tables describes the status and assignment parameters of both index and
extern latch.
0x16n0 (n= 0;1)
Parameter
Object
Description
Reset index latch value
0x70n0:02 When this variable turns from FALSE to TRUE then the
index latch value will be cleared (set to zero). The status
variable "Reset index latch value done" (0x60n0:02) will
become TRUE once the action has been finished.
Table 18:
0x16n0 - Process data sent to the ECAT-2092T
0x16n1 (n= 0;1)
Parameter
Object
Description
Enable extern latch
0x70n1:01 If this variable turns from FALSE to TRUE then the extern
latch will be activated. The status variable "Enable extern
latch done" (0x60n0:06) will become TRUE once the extern
latch has been enabled.
Reset extern latch
value
0x70n1:02 If this variable turns from FALSE to TRUE then the extern
latch will be reset to zero. The status variable "Reset extern
latch counter done" (0x60n0:07) will be TRUE once the
extern latch register has been reset.
Table 19:
0x16n1 - Process data sent to the ECAT-2092T
ICP DAS
Page
ECAT-2092T User Manual
Version 1.0
47
Summary of Contents for ECAT-2092T
Page 3: ...Revision Revision Date Description Author 1 18 02 2019 Initial version M K...
Page 50: ...Table 23 Resetting latch register procedure ICP DAS Page ECAT 2092T User Manual Version 1 0 50...
Page 55: ...Step 5 Set the ECAT 2092T back into OP mode ICP DAS Page ECAT 2092T User Manual Version 1 0 55...
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