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jxm-io-ew30_ba_2151_manual
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8.8 Acquisition of encoder signals
The ENCI_PNP interface lets you acquire encoder signals. 2 inputs are required for the acquisi-
tion. For example, if you configure input DI_P_3 as ENCI_PNP, the adjacent input DI_P_4 is also
assigned automatically.
Resolution
You can set the resolution using the RESOLUTION parameter.
RESOLUTION
Resolution
0
(Default)
DI_P_3
DI_P_4
1
3
3
3
1
1
1
2
4
4
4
2
2
2
+1
+1
+1
t
1
DI_P_3
DI_P_4
1
3
3
3
1
1
1
2
4
4
4
2
2
2
+1
+1
+1
+1
+1
+1
+1
t
2
DI_P_3
DI_P_4
1
3
3
3
1
1
1
2
4
4
4
2
2
2
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
t
Tab. 44:
Resolution of the encoder signals
IO interface input values
You can query the following input values:
Input value
Description
PDO send condition
I_COUNTER
32-bit counter running forward
and backward
Event time
(not sent in case of change)
I_DIRECTION
Current direction
In case of change
Tab. 45:
Available IO interface input values for ENCI_PNP
Speed
The timeout_TIME parameter lets you determine the lowest speed that can still be detected. The
default value is 100 ms, i.e. if no more pulses are received for 100 ms, then I_DIRECTION = 0.