V E R I C O L O R
®
S P E C T R O
15
Discrete I/O Connections (Example: High-side output enable)
1
2
5
3
8
7
6
4
2
8
+24 Vdc
Action
Fail
Pass
brn
red
nu
nu
nu
nu
wht
brn
grn
yel
J1
Pwr & RS232
male 8-pin
J2
Discrete I/O
female 8-pin
VC Spectro
nu = not used
read
+24 Vdc
Rx
Rx
Rx
Rx = current limiting resistor as needed
Connector J2
Color
Description
Pin 1
White
PASS = pass result
Output
Pin 2
Brown
FAIL = fail result
Output
Pin 3
Green
ComO = common discrete outputs
Output
Pin 4
Yellow
CH-E = 'ACTION' result
Output
Instrument Outside
Control
Pin 5
Gray
TXD A
RXD A
Output
Pin 6
Pink
RXD A
TXD A
Output
Pin 7
Blue
RXD B
TXD B
Output
Pin 8
Red
TXD B
RXD B
Output
A (-) B (+)
Figure 2
In the default project set-up these wires are all discrete lines. Pass, Fail and ComO are
always the same, while CH-A through CH-D and Action can have an alternate configuration.
a.
Action is the default but can be configured as CH-E (channel-E).
b.
CH-A through CH-D are the defaults but can be configured into a 4-wire RS485 port.
Once these lines are set as RS485, they cannot also be used as discrete outputs.
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