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Connecting Customer-Supplied Digital I/O Equipment
NOTE: The input current specifications are provided for reference; voltage
sources are typically used to drive the inputs.
In the following figure, example 1 shows inputs (1001 to 1004) with a negative <strong>com</strong>mon,
example 2 shows inputs (1005 to 1008) with a positive <strong>com</strong>mon, and example 3 shows
inputs (1009 to 1012) with an independent power supply (no <strong>com</strong>mon).
NOTE: These are examples. Either method can be used on any channel.
<strong>Adept</strong>-Supplied Equipment
(equivalent circuit)
+ 1
Signal 1001
– 2
Customer-Supplied Equipment
(Typical Examples)
Example 1
XDIO Connector on PLC Server - Inputs
Signal 1002
Signal 1003
Signal 1004
Signal 1005
Signal 1006
Signal 1007
Signal 1008
Signal 1009
Signal 1010
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
+ –
+ –
+
–
+
–
Customer power
supply
Example 2
Customer power
supply
Example 3
Sourcing
Signal 1011
Signal 1012
+
–
+
–
21
22
23
24
+ –
+ –
Sinking
Figure 4-15. Digital Input Wiring Examples (XDIO Connector)
NOTE: Power from pins 41-44 and 47-50 can be substituted for the
customer power supply. See Figure 4-16 on page 69 and Table 4-12 on
page 68 for additional information.
Output Signals
The XDIO connector handles output signals 0001 to 0008. Refer to Table 4-12 for output
specifications. The locations of the signals on the connector are shown in Table 4-13 on
page 70. The XDIO connector provides separate positive and negative connections for
each channel (no internal <strong>com</strong>mon connections). This allows the choice of wiring for
current-sourcing or current-sinking modes.
<strong>Adept</strong> <strong>Cobra</strong> <strong>PLC600</strong>/PLC800 Robot User’s <strong>Guide</strong>, Rev B 67