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Product Data Sheet - Multiple Signal Repeaters |
In applications such as remote process monitoring, factory automation, and energy management, a variety of signals must be transmitted over long distances. Instead of requiring expensive, multi-conductor sensor wiring for each signal, you can reduce cabling costs significantly by using a pair of I/O PLEXER Repeaters and a single communication circuit.
One Repeater concentrates your signals into serial data. The other recreates the individual signals at the second location. Special firmware eliminates the need for a host computer. Data flow is bi-directional, so you can pass signals in either direction. And checksumming is included to ensure data integrity.
One pair of Repeaters can handle 16 analog or digital signals in any combination. With optional Digital Expanders up to 48 more digital signals can be added for a total of 64.
I/O PLEXER Repeaters use duTec I/O modules to match signal requirements exactly. With a direct interface to the sensors, no signal conditioning is required. Furthermore, all duTec modules feature total electrical isolation, both module-to-logic and module-to-module.
Analog modules are available to measure:
A full range of industry standard digital modules is available for AC, DC, and dry contact inputs and outputs to hundreds of volts. See our I/O Module data sheet here.
I/O PLEXER Repeaters can be used to convert signals from one type to another. For example, a temperature signal can be converted to voltage or current.
duTec supports several standards for transmitting serial data between I/O PLEXER Repeaters. Built-in modem control lines allow use of telephone, fiber optic, and radio modems at baud rates to 38,400.
Maximum Distance of Communication Links |
||
---|---|---|
Serial Link | Feet | Meters |
RS-232 | 50 | 15 |
RS-422 | 5,000 | 1,524 |
RS-485 | 5,000 | 1,524 |
Under full load (sixteen analog and 48 digital signals), the average response time between an input event and the resulting output is less than 250 ms @9600 baud.
A self-contained I/O PLEXER Repeater has its own power supply, so there's no need to purchase or reserve space for an external supply. A push button and on-board LED indicator configure baud rate and Input/Output separator. Removable terminal strips let you connect or disconnect multiple cable sets in one step.
On power-up, the unit self-tests for system faults and reports via a sequential display. Should hardware or firmware fail, an on-board hardware watchdog provides safe shutdown by turning off all outputs.
You can also use your I/O PLEXER Repeater to implement alarm and fail-safe states in case the communications link fails. Watchdog configuration requires a one-time initializtion connection to a host computer.
If your application evolves to a centralized or distributed control network, your I/O PLEXER Repeaters can be upgraded to full I/O PLEXER status. Contact duTec about features gained, upgrade details and pricing.
Power |
Standard |
90-264 Vac 47-440 Hz |
Option /B |
9 - 18 Vdc @ 25 W |
|
Option /C |
18-36 Vdc @ 25 W |
|
Environment |
Temperature |
0 deg. - 60 deg. C |
Humidity |
95% non-condensing |
|
Package |
Stainless Steel |
|
Length |
17.25 in (44 cm) |
|
Width |
5.0 in (12.7 cm) |
|
Height (w/modules) |
3.5 in (8.9 cm) |
|
Weight |
4 lbs (1.8 kg) |
Model Number | Description |
IOP-RAD |
16 sockets for any mix of analog and digital modules |
IOP-RD |
16 sockets for digital modules only |
Option Codes |
Description of I/O Controller Options |
/3+ |
Controller logic & connectors for adding up to 3 IOP-DE, 16 I/O digital expanders |
IOP-DE |
Expansion chassis with sockets for 16 digital only I/O modules, no power supply required |
/B |
Alternate power supply for operation from 9-18 Vdc @ 25 W |
/C |
Alternate power supply for operation from 18-36 Vdc @ 25 W |
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