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3.4.1
I/O Connector Pin Definition
Table 3.4: I/O Connector Pin Definition
Pin Name
Digital Input
DI<0..7>
DI<8..15>
ECOM0
DI<16..23>
DI<24..31>
ECOM1
DI<32..39>
DI<40..47>
ECOM2
DI<48..55>
DI<56..63>
ECOM3
Digital Output
DO<0..7>
DO<8..15>
PCOM0
DO<16..23>
DO<24..31>
PCOM1
DO<32..39>
DO<40..47>
PCOM2
DO<48..55>
DO<56..63>
PCOM3
Others
GND
NC
3.4.2
Isolated Digital Input
Each isolated digital input channel accepts bi-directional 5 ~ 25 V
This means users can apply positive or negative voltage to an isolated input
pin(VIN). Every 16 input channels share one common pin.
Each digital input channel supports wet contact or dry contact operation, which can
be selected by hardware jumpers. Refer to Chapter 3.3 for more detailed description
on hardware jumper settings.
For wet contact operation, the input voltage is applied between the DI pin and the
corresponding ECOM pin. If the input voltage is within OFF or ON state logic level, a
logic low (0) or high (1) will be sensed, respectively. If the input voltage is between
the OFF and ON state logic levels, the result is undetermined, which may be low or
high. User should ensure the ON/OFF state voltages of the sensors or switches meet
the required values. Do not input a voltage higher than the maximum value of ON
PCI-1758 Series User Manual
Type
Description
I
Digital input channel 0 ~ 7 (port 0)
I
Digital input channel 8 ~ 15 (port 1)
I
External common point for digital input port 0 & 1
I
Digital input channel 16 ~ 23 (port 2)
I
Digital input channel 24 ~ 31 (port 3)
I
External common point for digital input port 2 & 3
I
Digital input channel 32 ~ 39 (port 4)
I
Digital input channel 40 ~ 47 (port 5)
I
External common point for digital input port 4 & 5
I
Digital input channel 48 ~ 55 (port 6)
I
Digital input channel 56 ~ 63 (port 7)
I
External common point for digital input port 6 & 7
O
Digital output channel 0 ~ 7 (port 0)
O
Digital output channel 8 ~ 15 (port 1)
I
Power common point for digital output port 0 & 1
O
Digital output channel 16 ~ 23 (port 2)
O
Digital output channel 24 ~ 31 (port 3)
I
Power common point for digital output port 2 & 3
O
Digital output channel 32 ~ 39 (port 4)
O
Digital output channel 40 ~ 47 (port 5)
I
Power common point for digital output port 4 & 5
O
Digital output channel 48 ~ 55 (port 6)
O
Digital output channel 56 ~ 63 (port 7)
I
Power common point for digital output port 6 & 7
-
Ground
-
No connect
18
voltage inputs.
DC
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