SERIES IOS-440 I/O SERVER MODULE 32-CHANNEL ISOLATED DIGITAL INPUT MODULE
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Acromag, Inc. Tel:248-295-0310 Fax:248-624-9234 Email:[email protected] http://www.acromag.com
The information contained in this manual is subject to change
without notice. Acromag, Inc. makes no warranty of any kind with
regard to this material, including, but not limited to, the implied
warranties of merchantability and fitness for a particular purpose.
Further, Acromag, Inc. assumes no responsibility for any errors
that may appear in this manual and makes no commitment to
update, or keep current, the information contained in this manual.
No part of this manual may be copied or reproduced in any form,
without the prior written consent of Acromag, Inc.
Table of Contents
Page
1.0 GENERAL INFORMATION
...........................................
2
KEY IOS-440 FEATURES.............................................
2
I/O SERVER MODULE INTERFACE FEATURES........
3
I/O SERVER MODULE SOFTWARE …………............
3
2.0 PREPARATION FOR USE
............................................
3
UNPACKING AND INSPECTION..................................
3
BOARD CONFIGURATION...........................................
3
CONNECTORS.............................................................
4
IOS Field I/O Connector (P2).........................................
4
Noise and Grounding Considerations............................
4
3.0
PROGRAMMING INFORMATION
.................................
4
ADDRESS MAPS..........................................................
4
Standard (Default) Mode Memory Map..........................
5
Enhanced Mode Memory Map.......................................
5
REGISTER DEFINITIONS.............................................
6
THE EFFECT OF RESET..............................................
9
Basic Input Operation....................................................
10
Enhanced Operating Mode............................................
10
Event Sensing...............................................................
10
Change-Of-State Detection............................................
10
Debounce Control..........................................................
10
Interrupt Generation.......................................................
10
Programming Example..................................................
11
4.0
THEORY OF OPERATION
............................................
12
IOS-440 OPERATION...................................................
12
5.0
SERVICE AND REPAIR
................................................
13
SERVICE AND REPAIR ASSISTANCE........................
13
PRELIMINARY SERVICE PROCEDURE......................
13
WHERE TO GET HELP................................................
13
6.0
SPECIFICATIONS
.........................................................
13
GENERAL SPECIFICATIONS.......................................
13
ENVIRONMENTAL........................................................
13
INPUTS.........................................................................
14
DRAWINGS
Page
4502-046 IOS-440 BLOCK DIAGRAM..........................
15
4502-048 IOS-445/IOS-440 LOOPBACK
CONNECTIONS
15
IMPORTANT SAFETY CONSIDERATIONS
It is very important for the user to consider the possible adverse
effects of power, wiring, component, sensor, or software failures
in designing any type of control or monitoring system. This is
especially important where economic property loss or human life
is involved. It is important that the user employ satisfactory
overall system design. It is agreed between the Buyer and
Acromag, that this is the Buyer's responsibility.
1.0 GENERAL INFORMATION
The I/O Server Module Series IOS-440 module provides 32
channels of isolated digital. Four units may be mounted on a
carrier board to provide up to 128 inputs per system slot. Inputs
of this module are bipolar and can be used to sense positive or
negative voltages in 3 ranges according to the model:
MODEL
INPUT RANGE
THRESHOLD
IOS-440-2
16 to 40V DC or AC peak
16V Max
MODEL
OPERATING TEMPERATURE RANGE
IOS-440-2
-40 to +85 C
The inputs normally function as independent input level
detectors without interrupts. However, each input line includes
built-in event sense circuitry with programmable polarity,
debounce, and interrupt support. Inputs also include hysteresis
for increased noise immunity. The IOS-440 utilizes state of the
art Surface-Mounted Technology (SMT) to achieve its wide
functionality and is an ideal choice for a wide range of industrial
I/O applications that require a high-density, highly reliable, high-
performance interface at a low cost.
Important Note:
The following IOS model are accessories to the
IOS Server Models: IOS-7200, IOS-7200-WIN, IOS-7400, and
IOS-7400-WIN; which are cULus Listed. This equipment is
suitable for use in Class I, Division 2, Groups A, B, C, and D or
non-hazardous locations only.
KEY IOS-440 FEATURES
High Channel Count
- Provides programmable monitor and
control of 32 optically isolated input points. Four units
mounted on a carrier board provide 128 isolated input points
in a single VMEbus or PCI system slot.
Wide Range Bipolar Input Voltage
- Model ranges provide
interface capability for bipolar voltages from 16 to 40V DC
or AC peak (see Specifications section).
Optically Isolated
- Individual bipolar opto-couplers provide
isolation. There are four groups (ports) of 8 channels, each
which include separate port commons to ensure port-to-port
isolation. Individual ports are isolated from each other and
from the logic.
Programmable Polarity Event Interrupts
- Interrupts are
software programmable for positive (low-to-high) or negative
(high-to-low) input level transitions on all 32 channels.
Using two channels per input, change-of-state transitions
may also be configured.
Input Hysteresis
- Isolated inputs include hysteresis for
increased noise immunity.
Programmable Debounce
- The event sense input circuitry
includes programmable debounce times for all 32 channels.
Debounce time is the duration of time that must pass before
the input transition is recognized as valid at the FPGA input.
This helps prevent false events and increases noise
immunity.
Reverse Polarity Protection
- Bipolar inputs are not
polarized and are inherently reverse polarity protected.
No Configuration Jumpers or Switches
- All configuration
is performed through software commands with no internal
jumpers to configure or switches to set.
Loopback Compatible with IOS-445 Output Module
- The
field side P2 pinouts of this model are directly compatible
with those of the Acromag Model IOS-445 32-Channel
Digital Output Module for direct closed-loop monitoring of
the output states. The IOS-440 also shares the same P2
pinout used on the IOS 408 32-Channel I/O Module, for
channels 0-31.
Conduction Cooled Module
- I/O modules employ
advanced thermal technologies. A thermal pad and module
cover wicks heat away from the module and transfers the
energy to a heat spreading friction plate. Heat moves to the
