Specifications

Chapter 7 - System Input/Output Module (SIO)
86 Adept MV Controller User’s Guide, Rev C
The External Position Latch feature allows the Robot and AdeptMotion Interface modules
(VJI and/or MI3/MI6) to latch the position of robot and conveyor belt encoders. This is a
hardware function, and is very fast. The input signal typically will come from a proximity
sensor or an external probe. The latched values can later be read using the V
+
LATCH()
function. The Position Latch must be configured using the
CONFIG_C
utility program. It
does not require an optional V
+
Extensions License. See Appendix B for more details on
using the position latch.
The Vision Trigger feature allows the AdeptVision Interface module (VIS) to wait for an
external signal to trigger the acquisition of a picture. This is a hardware function, and is
very fast. The Vision Trigger must be configured using the
CONFIG_C
utility program and
DIP switches on the VIS module. It does not require an optional V
+
Extensions License.
See Appendix B for more details. See section 9.3 for configuration of the VIS module.
a
the input current specifications are provided for reference; voltage sources
are typically used to drive the inputs.
b
2 ms response time (minimum) for fast inputs 1001 to 1003, depending on
program task configuration, when used with V
+
INT.EVENT instruction.
Table 7-3. DIO Input Specifications (SIO module)
Operational voltage range 0 to 24 VDC
“Off” state voltage range 0 to 3 VDC
“On” state voltage range 10 to 24 VDC
Typical threshold voltage V
in
= 8 VDC
Operational current range
a
0 to 20 mA
“Off” state current range
a
0 to 1.2 mA
“On” state current range
a
7 to 20 mA
Typical threshold current, per channel
a
10 mA
Impedance (V
in
/I
in
) 1.3 KΩ minimum
Current at V
in
= +24 VDC I
in
≤ 20 mA
Turn on response time (hardware)
Software scan rate/response time
5 µsec maximum
16 ms scan cycle/ 32 ms max
response time
b
Turn off response time (hardware)
Software scan rate/response time
5 µsec maximum
16 ms scan cycle/ 32 ms max
response time
b
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