Unitronics IO-DI16 User manual

Unitronics Industrial Automation Systems 1
IO-DI16 I/O Expansion Module 16 Digital Inputs
The IO-DI16 is an I/O expansion module
that can be used in conjunction with
specific Unitronics OPLC controllers.
The module offers 16 digital inputs in 2
groups, type pnp/npn (source/sink).
The interface between the module and
the OPLC is provided by an adapter.
The module may either be snap-mounted
on a DIN rail, or screw-mounted onto a
mounting plate.
Component identification
1 Module-to-module connector
2 Communication status indicator
3 Input connection points: I8-I15
4 Input status indicators
5 Module-to-module connector port
6 Input connection points: I0-I7
1 5
6
3
2
IO -D I1 6
98101112131415
I7I6I5I4I3I2I1I0
I8 I9 I1 0 I1 1 I1 2 I1 3 I1 4 I1 5
PN0V
PN0V
4
User safety and equipment protection guidelines
This document is intended to aid trained and competent personnel in the installation of this equipment as defined
by the European directives for machinery, low voltage and EMC. Only a technician or engineer trained in the
local and national electrical standards should perform tasks associated with the electrical wiring of this device.
 Under no circumstances will Unitronics be liable or responsible for any consequential damage that may
arise as a result of installation or use of this equipment, and is not responsible for problems resulting from
improper or irresponsible use of this device.
 All examples and diagrams shown in the manual are intended to aid understanding. They do not guarantee
operation.
 Unitronics accepts no responsibility for actual use of this product based on these examples.
 Only qualified service personnel should open this device or carry out repairs.
 Please dispose of this product in accordance with local and national standards and regulations.
 Check the user program before running it.
 Do not attempt to use this device with voltage exceeding permissible levels.
 Install an external circuit breaker and take appropriate safety measures against short-circuiting in
external wiring.
 Failure to comply with appropriate safety guidelines can result in severe personal injury or
property damage. Always exercise proper caution when working with electrical equipment.

IO-DI16 I/O Expansion Module 11/00
2 Unitronics Industrial Automation Systems
Mounting the Module
Mounting Considerations
 Do not install in areas with: excessive or conductive dust, corrosive or
flammable gas, moisture or rain, excessive heat, regular impact shocks
or excessive vibration.
 Provide proper ventilation by leaving a minimum space of 10mm
between the top and bottom edges of the device and the
enclosure walls.
 Do not place in water or let water leak onto the unit.
 Do not allow debris to fall inside the unit during installation.
DIN-rail mounting
Snap the device onto the DIN rail as shown below; the module will be squarely situated on the DIN rail.
60mm
3.5mm
14mm
80mm
93mm
44.5mm
IO -D I1 6
98 101112 1314 15
I7I6I5I4I3I2I1I0
I8 I9 I1 0 I1 1 I1 2 I1 3 I1 4 I 1 5
PN0V
PN0V
Screw-Mounting
The figure on the next page is drawn to scale. It may be used as a guide for screw-mounting the module.
Mounting screw type: either M3 or NC6-32.

11/00 IO-DI16 I/O Expansion Module
Unitronics Industrial Automation Systems 3
4mm
5.8mm
85mm
80mm
68.4mm
93mm
4mm (x2)

IO-DI16 I/O Expansion Module 11/00
4 Unitronics Industrial Automation Systems
Connecting Expansion Modules
An adapter provides the interface between the OPLC and an expansion module. To connect the I/O module to the
adapter or to another module:
1 Push the module-to-module connector into the port located on the right side of the device.
Note that there is a protective cap provided with the adapter. This cap covers the port of the final
I/O module in the system.
 To avoid damaging the system, do not connect or disconnect the device when the
power is on.
Component identification
1 Module-to-module
connector
2 Protective cap
1 2
Wiring
Wire Size
Use 26-12 AWG wire (0.13 mm 2–3.31 mm2) for all wiring purposes.
Wiring Considerations
 Note that the adapter and input signals must be connected to the same 0V signal.
 Do not use tin, solder or any other substance on the stripped wire that might cause the wire strand to break.
 We recommend that you use crimp terminals for wiring.
 Install at maximum distance from high-voltage cables and power equipment.
General Wiring Procedures
1 Strip the wire to a length of 7±0.5mm (0.250–0.300 inches).
2 Unscrew the terminal to its widest position before inserting a wire.
3 Insert the wire completely into the terminal to ensure that a proper
connection can be made.
4 Tighten enough to keep the wire from pulling free.
To avoid damaging the wire, do not exceed a maximum torque of 0.5 N·m (5 kgf·m).
 Do not touch live wires.
 Double-check all the wiring before turning on the power supply.

11/00 IO-DI16 I/O Expansion Module
Unitronics Industrial Automation Systems 5
Input Wiring
 Input or output cables should not be run through the same multi-core cable or share the same wire.
 Allow for voltage drop and noise interference with input lines used over an extended distance. Use wire
that is properly sized for the load.
 Each group of inputs may be wired as either pnp or npn inputs.
npn (sink) input wiring
(shown in top group of inputs)
high-speed counter/frequency measurer
npn (sink)
I8 I9 I10 I1 1 I1 2 I1 3 I1 4 I15PN0V
0V
+V
Circuit Protection Device
High-speed
Counter
Reset
High-speed
Counter
pnp (source)
IO-DI16
98 1011 12 1314 15
I7I6I5I4I3I2I1I0
I8 I9 I10 I11 I12 I13 I14 I15
PN0V
PN0V
0V
+V
Circuit Protection Device
0V
+V
I8 I9 I10 I11 I12 I13 I1 4 I15PN0V
0V
+V
High-speed
Counter
Reset
High-speed
Counter
pnp (source) input wiring
(shown in bottom group of inputs)

IO-DI16 I/O Expansion Module 11/00
6 Unitronics Industrial Automation Systems
IO-DI16 Technical Specifications
Max. current consumption 75mA maximum from the adapter’s 5VDC
Typical power consumption 0.2W @ 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 16 (in two groups)
Input type pnp (source) or npn (sink)
Galvanic isolation None
Status indicators (IN) Green LEDs—Lit when the corresponding input is active.
Nominal input voltage 24VDC
Input voltage
pnp (source) 0-5VDC for Logic ‘0’
17-28.8VDC for Logic ‘1’
npn (sink), voltage/current 17-28.8VDC/<1.1 mA for Logic ‘0’
0-5VDC/>4.3mA for Logic ‘1’
Input current 6mA@24VDC
Response time 10mSec typical
Input #15 The specifications below apply when this input is wired for use as a high-speed
counter input/frequency measurer. See Notes 1 and 2.
Resolution 16-bit
Frequency 5kHz maximum
Minimum pulse width 80µs
Environmental IP20
Operating temperature 0°to 50°C
Storage temperature -20°to 60°C
Relative Humidity (RH) 5% to 95% (non-condensing)
Dimensions (WxHxD) 80mm x 93mm x 60mm
Weight 141g (4.9oz.)
Mounting Either onto a 35mm DIN-rail or screw- mounted.
Notes:
1. Input #15 can function either as a high-speed counter, a frequency measurer, or as a normal digital
input. When Input #15 is used as a normal digital input, normal input specifications apply.
2. Input #14 can function either as the counter’s reset, or as a normal digital input; in either case, its
specifications are those of a normal digital input.

11/00 IO-DI16 I/O Expansion Module
Unitronics Industrial Automation Systems 7
Addressing I/Os on M90 Expansion Modules
Inputs and outputs located on I/O expansion modules that are connected into an M90 OPLC are assigned
addresses that comprise a letter and a number. The letter indicates whether the I/O is an input (I) or an
output (O). The number indicates the I/O’s location in the system. This number relates to both the position
of the expansion module in the system, and to the position of the I/O on that module.
Expansion modules are numbered from 0-7 as shown in the figure below.
01234567
Expansion module
identification number
Adapter
The formula below is used to assign addresses for I/O modules used in conjunction with the M90 OPLC.
X is the number representing a specific module’s location (0-7). Y is the number of the input or output on
that specific module (0-15).
The number that represents the I/O’s location is equal to:
32 + x • 16 + y
Examples
 Input #3, located on expansion module #2 in the system, will be addressed as I 67,
67 = 32 + 2 • 16 + 3
 Output #4, located on expansion module #3 in the system, will be addressed as O 84,
84 = 32 + 3 • 16 + 4.
EX90-DI8-RO8 is a stand-alone I/O module. Even if it is the only module in the configuration, the EX90-DI8-
RO8 is always assigned the number 7.
Its I/Os are addressed accordingly.
Example
 Input #5, located on an EX90-DI8-RO8 connected to an M90 OPLC will be addressed
as I 149, 149 = 32 + 7 • 16 + 5

High-speed counter/
Frequency
measurement
Analog output
resolution
Analog
outputs
Digital
outputs
Analog input
resolution
Analog
inputs
Digital inputs
(24VDC)
One
— —
8 pnp
(source)
— —
8 pnp/npn
(source/sink)
IO-DI8-TO8
One
— — — — —
16 pnp/npn
(source/sink)
IO-DI16
— — —
16 pnp
(source)
— — —
IO-TO16
Digital I/O (transistor)
One
— —
4 relay
outputs
— —
8 pnp/npn
(source/sink)
IO-DI8-RO4
— — —
8 relay
outputs
— — —
IO-RO8
One
— —
8 relay
outputs
— —
8 pnp
(source)
EX90-DI8-RO8*
Digital I/O (relay)
* Stand-alone module. Other modules are used in conjunction with the EX-A1 adapter
—
12 bit
+ sign
2 outputs
±10V,
0-20mA, 4-20mA
—
12 bit
4 inputs
0-10V,
0-20mA , 4-20mA
—
IO-AI4-AO2
Analog I/O
To order the expansion module that best fits your system, contact your local distributor.
For a list of Unitronics distributors, check our website: http://www.unitronic.com/contact.htm
— — — —
12 bit
4 PT100
-50° to 460°C
—
IO-PT4
PT 100
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