Adept EX SmartContoller - Manual (Page 48)

Chapter 3: Operation
Fast DIO interrupt events (using INT.EVENT) require the optional eV+ Extensions License.
When the program task priorities are properly set, there is a 1 ms maximum latency for the
fast inputs when used with the eV+ INT.EVENT instruction.
See the eV+ Language Reference Guide for a description of the INT.EVENT instruction.
Output Signals
The XDIO connector handles output signals 0001 to 0008. Refer to the following table for out-
put specifications. The locations of the signals on the connector are shown in the table XDIO
Digital I/O Connector Pin Assignments on page 49. The XDIO connector provides separate pos-
itive and negative connections for each channel (no internal common connections). This
allows the choice of wiring for current-sourcing or current-sinking modes.
Table 3-11. DIO Output Specifications (XDIO connector)
Operating voltage range 0 to 24 VDC
Operational current range, per channel I
out
£ 100 mA, short-circuit pro-
tected,
1 A total at 24 V
V drop across output in “on” condition V drop £ 2.7 V at 100 mA
V drop £ 2.0 V at 10 mA
Output off leakage current I
out
£ 600 µA
Turn-on response time (hardware)
Software scan rate/response time 3 µsec maximum
1 ms scan cycle
1 ms max. response time
Turn-off response time (hardware)
Software scan rate/response time 200 µsec maximum
1 ms scan cycle
1 ms max. response time
The figure Digital Output Wiring for XDIO Connector on page 49 shows two examples of dif-
ferent connections to the digital outputs on the XDIO connector. The examples are negative
common and positive common using the internal 24 V and ground connections.
Example 1: outputs 0001 to 0004 are shown with positive common.
Example 2: outputs 0005 to 0008 are shown with negative common.
NOTE: These are examples. Either method can be used, in any combination, on any channel. Also,
an external customer-provided power supply could have been provided instead of the power pro-
vided on the XDIO connector.
Adept SmartController EX User’s Guide, Rev. B
Page 48 of 96