5/05
IO-DI8-RO8, IO-DI8-RO8-L
I / O E x p a n s i o n M o d u l e s
Unitronics
7
IO-DI8-RO8, IO-DI8-RO8-L Technical Specifications
Max. current consumption
70mA maximum from the adapter’s 5VDC
Typical power consumption
0.18W @ 5VDC
Status indicator
(RUN)
Green LED:
—Lit when a communication link is established between module and OPLC.
—Blinks when the communication link fails.
Inputs
Number of inputs
8 (in one group)
Input type
pnp (source) or npn (sink)
Galvanic isolation
None
Status indicators(IN)
Green LEDs—Lit when the corresponding input is active. See Note 1.
Nominal input voltage
24VDC for IO-DI8-RO8, 12VDC for IO-DI8-RO8-L
Input voltage
IO-DI8-RO8
IO-DI8-RO8-L
pnp (source)
0-5VDC for Logic ‘0’
17-28.8VDC for Logic ‘1’
0-3VDC for Logic ‘0’
8-15.6V for Logic ‘1’
npn (sink), voltage/current
17-28.8VDC/<1.1 mA for Logic ‘0’
0-5VDC/>4.3mA for Logic ‘1’
8-15.6VDC/<1.1 mA for Logic ‘0’
0-3VDC/>4.3mA for Logic ‘1’
Input current
6mA@24VDC
6mA@12VDC
Response time
10mSec typical
Input #7
The specifications below apply when this input is wired for use as a high-
speed counter input/frequency measurer. See Notes 2 and 3.
Resolution 16-bit
Frequency 5kHz
maximum
Minimum pulse width
80µs
Outputs
Number of outputs
8 relay
Output type
SPST-NO (Form A)
All relays share a common signal
Isolation By
relay
Type of relay
IO-DI8-RO8
Tyco PCN-124D3MHZ or compatible
IO-DI8-RO8-L
Tyco PCN-112D3MHZ or compatible
Output current
3A maximum per output (resistive load)
8A maximum total for common (resistive load).
Rated voltage
250VAC / 30VDC
Minimum load
1mA@5VDC
Life expectancy
100k operations at maximum load
Response time
10mS (typical)
Status Indicators (OUT)
Red LEDs—Lit when the corresponding output is active.
Contact protection
External precautions required
(see above: Increasing Contact Life Span)
Outputs’ power supply: IO-DI8-RO8
Nominal operating voltage
24VDC
Operating voltage
20.4 to 28.8VDC
Maximum current consumption
70mA@24VDC
