Acromag IOS-445 User manual

IOS-445
32 Channel Isolated SSR Output Module
USER’S MANUAL
ACROMAG INCORPORATED Tel: [phone]
30765 South Wixom Road Fax: [phone]
P.O. BOX 437
Wixom, MI 48393-7037 U.S.A.
[email protected]om
Copyright 2009, Acromag, Inc., Printed in the USA.
Data and specifications are subject to change without notice. 8500-840-B11C007
retired

SERIES IOS-445 I/O SERVER MODULE 32 CHANNEL ISOLATED SSR OUTPUT MODULE
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Acromag, Inc. Tel:[phone] Fax:[phone] 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-445 FEATURES.............................................
2
I/O SERVER MODULE INTERFACE FEATURES........
3
I/O SERVER MODULE SOFTWARE LIBRARY...........
3
2.0 PREPARATION FOR USE............................................
3
UNPACKING AND INSPECTION..................................
3
BOARD CONFIGURATION...........................................
3
CONNECTORS.............................................................
3
IOS Field I/O Connector (P2)....................................
3
Grounding and Noise Considerations........................
4
3.0 PROGRAMMING INFORMATION.................................
4
IOS IDENTIFICATION ROM..........................................
4
I/O SPACE ADDRESS MAP.........................................
5
REGISTER DEFINITIONS............................................
5
Control Register........................................................
5
Port Output Registers................................................
5
IOS-445 PROGRAMMING............................................
5
4.0 THEORY OF OPERATION............................................
6
OUTPUT PORTS..........................................................
6
5.0 SERVICE AND REPAIR................................................
6
SERVICE AND REPAIR ASSISTANCE........................
6
PRELIMINARY SERVICE PROCEDURE......................
6
WHERE TO GET HELP…………………………………..
6
6.0 SPECIFICATIONS.........................................................
7
GENERAL SPECIFICATIONS.......................................
7
DIGITAL SSR OUTPUTS..............................................
7
DRAWINGS
Page
IOS-445 RESISTOR LOCATION DRAWING…………..
8
IOS-440/IOS-445 LOOPBACK CONNECTIONS……….
9
IOS-445 BLOCK DIAGRAM.........................................
10
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 (IOS) Series IOS-445 module is a
bus isolated 32-channel output module. The IOS-445 provides
control for 32 solid state relays which are bipolar and may be used
to switch positive or negative voltages. Four units may be mounted
on a carrier board to provide up to 128 channels of output control in
a single system slot. The IOS-445 offers a variety of features
which make it an ideal choice for many industrial and scientific
applications as described below.
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.
MODEL
OPERATING TEMPERATURE RANGE
IOS-445
-40 to +85 C
KEY IOS-445 FEATURES
High Channel Count - Individual control of up to 32 (SPST-
NO) bipolar Solid State Relays (SSR‟s) is provided. Four
units mounted on a carrier board provide 128 channels in a
single system slot.
Optically Isolated - Individual bipolar SSR‟s provide
isolation. The IOS-445 contains four groups (ports) of eight
channels which include separate port commons to ensure port
to port isolation. Individual ports are isolated from each other
and from the IOS logic.
Low-Side or High-Side Switch Configuration - Each group
of eight channels can be connected directly to positive or
negative supplies for high (hot) side switching. Alternatively,
each group of eight channels can be connected to common
for low side switching. Socketed pull-up resistors are provided
for low side switching applications.
TTL Compatible - When configured as a low side switch will
sink 27mA at 0.4 volts. Sourcing is controlled by the installed
pull-up resistor.
Power Up & System Reset is Fail-safe - For safety, the
outputs are turned OFF upon power-up and a system reset.
Thus, the SSR‟s will be disabled after a power-up or system
reset.
Wide Range Bipolar Voltage Outputs - Outputs are rated
from 0 to 60 volts. The bipolar solid state relays allow both
AC and DC switching.
Output Readback Function - Readback buffers are provided
that allow the output channel registers to be read back.
Loopback Compatible with IOS-440 Digital Input Module -
The P2 field I/O pin assignments of the IOS-445 output
module correspond with those of the Acromag IOS-440 Bus
Isolated Input module. This provides direct closed-loop
monitoring of the output states.

SERIES IOS-445 I/O SERVER MODULE 32 CHANNEL ISOLATED SSR OUTPUT MODULE
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No Configuration Jumpers or Switches - All configuration is
performed through software commands with no internal
jumpers to configure or switches to set.
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 enclosure walls
where it is dissipated by the external cooling fins.
I/O SERVER MODULE INTERFACE FEATURES
High density - Single-size, IOS module footprint. Four units
mounted on a carrier board provide up to 128 isolated output
points in a single system slot.
Local ID - Each IOS module has its own 8-bit ID signature
which can be read via access to the ID space.
8-bit I/O - Port register Read/Write is performed through 8 or
16-bit data transfer cycles.
I/O SERVER MODULE SOFTWARE LIBRARY
IOS MODULE Win32 DRIVER SOFTWARE
Acromag provides a software product (sold separately) to
facilitate the development of Windows Embedded Standard
applications interfacing with I/O Server Modules installed on
Acromag Industrial I/O Server systems. This software (Model
IOSSW-DEV-WIN) consists of a low-level driver and Windows 32
Dynamic Link Libraries (DLLS) that are compatible with a number
of programming environments including Visual C++, Visual
Basic.NET, Borland C++ Builder and others. The DLL functions
provide a high-level interface to the IOS carrier and modules
eliminating the need to perform low-level reads/writes of
registers, and the writing of interrupt handlers.
IOS MODULE LINUX SOFTWARE
Acromag provides a software product (sold separately)
consisting of Linux software. This software (Model IOSSW-
API-LNX) is composed of Linux libraries designed to support
applications accessing I/O Server Modules installed on Acromag
Industrial I/O Server systems. The software is implemented as a
library of “C” functions which link with existing user code.
2.0 PREPARATION FOR USE
UNPACKING AND INSPECTION
Upon receipt of this product, Inspect the shipping carton for
evidence of mishandling during transit. If the shipping carton is
badly damaged or water stained, request that the carrier's agent be
present when the carton is opened. If the carrier's agent is absent
when the carton is opened and the contents of the carton are
damaged, keep the carton and packing material for the agent's
inspection.
For repairs to a product damaged in
shipment, refer to the Acromag Service
Policy to obtain return instructions. It is
suggested that salvageable shipping
cartons and packing material be saved for
future use in the event the product must
be shipped.
This board is physically protected with packing material and
electrically protected with an anti-static bag during shipment.
However, it is recommended that the board be visually inspected
for evidence of mishandling prior to applying power.
The board utilizes static sensitive components and should only be
handled at a static-safe workstation.
BOARD CONFIGURATION
Power should be removed from the board when installing IOS
modules, cables, termination panels, and field wiring. Refer to your
IOS module documentation for configuration and assembly
instructions. Module IOS-445 digital output boards have no
hardware jumpers or switches to configure. Software configurable
control registers are provided for control of all modes of operation.
Refer to section 3 for programming details.
This module is built with socketed output pull-up resistors
installed. These may be used when the SSR‟s are applied as low
side switches. Resistor values may be changed if needed, and the
resistors may be removed for high side switching (see IOS-445
RESISTOR LOCATION DRAWING).
CONNECTORS
IOS Field I/O Connector (P2)
P2 provides the field I/O interface connections for mating IOS
modules to the carrier board. P2 is a 50-pin female receptacle
header (AMP 173279-3 or equivalent) which mates to the male
connector of the carrier board (AMP 173280-3 or equivalent). This
provides excellent connection integrity and utilizes gold-plating in
the mating area. The field and logic side connectors are keyed to
avoid incorrect assembly.
P2 pin assignments are unique to each IOS model (see Table
2.1) and normally correspond to the pin numbers of the field I/O
interface connector on the carrier board (you should verify this for
your carrier board).

SERIES IOS-445 I/O SERVER MODULE 32 CHANNEL ISOLATED SSR OUTPUT MODULE
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Table 2.1: IOS-445 Field I/O Pin Connections (P2)
Pin Description
Number
Pin Description
Number
OD00
1
OD20
26
P
OD01
2
OD21
27
O
OD02
3
P
OD22
28
R
OD03
4
O
OD23
29
T
User Supply 0
5
R
User Com Out 2
30
2
OD04
6
T
OD24
31
OD05
7
OD25
32
OD06
8
0
OD26
33
P
OD07
9
OD27
34
O
User Com Out 0
10
User Supply 3
35
R
OD08
11
OD28
36
T
OD09
12
OD29
37
OD10
13
P
OD30
38
3
OD11
14
O
OD31
39
User Supply 1
15
R
User Com Out 3
40
OD12
16
T
Not Used
41
OD13
17
Not Used
42
OD14
18
1
Not Used
43
OD15
19
Not Used
44
User Com Out 1
20
Not Used
45
OD16
21
P
Not Used
46
OD17
22
O
Not Used
47
OD18
23
R
Not Used
48
OD19
24
T
Not Used
49
User Supply 2
25
2
Not Used
50
The output channels of this module are divided into four ports
of eight channels each. All channels within a port share a common
signal connection with each other. Isolation is provided between
the ports and the IOS logic which includes the remainder of the I/O
Server. In addition, bus isolation is provided between ports.
P2 pin assignments are arranged to be compatible with similar
Acromag models. This model is directly loopback compatible with
the Acromag Model IOS-440 32-Channel Digital Input Board.
Likewise, pin assignments are identical to those of Acromag Model
IOS-405 40-Channel Digital Output Boards for channels 0-31,
except for the user supply connections.
See IOS-440/IOS-445 LOOPBACK CONNECTIONS for
loopback connections to Acromag Model IOS-440 Input Modules.
Note that the outputs of this module are bipolar, and may be
connected in any direction with respect to the port common.
Further, do not confuse port commons with signal ground. For the
IOS-445, port common only infers that this lead is connected
common to the 8 outputs of the port (a separate common for each
port). The port commons of the IOS-445 output module and
IOS-440 input module are normally not connected together for
loopback interconnection (see IOS-440/IOS-445 LOOPBACK
CONNECTIONS).
Grounding and Noise Considerations
Output lines of the IOS-445 are optically isolated between the
logic and field output connections. Likewise, separate port
commons ensure port-to-port isolation. Consequently, the field I/O
connections are isolated from the carrier board and backplane,
thus minimizing the negative effects of ground bounce, impedance
drops, and switching transients. However, care should be taken in
designing installations to avoid inadvertently compromising
isolation, or creating ground loops which can cause noise pickup
and reduce overall system reliability.
3.0 PROGRAMMING INFORMATION
IOS IDENTIFICATION SPACE - (Read Only, 32 Even-Byte
Addresses)
Each IOS module contains identification (ID) information that
resides in the ID space. This area of memory contains 32 bytes of
information at most. Both fixed and variable information may be
present within the ID space. Fixed information includes the "IOS"
identifier, model number, and manufacturer's identification codes.
Variable information includes unique information required for the
module. The IOS-445 ID information does not contain any variable
(e.g. unique calibration) information. ID space bytes are addressed
using only the even addresses in a 64 byte block The IOS-445 ID
space contents are shown in Table 3.1. Note that the base-
address for the IOS module ID space (see the I/O Server manual)
must be added to the addresses shown to properly access the ID
space. Execution of an ID space read requires 0 wait states.
Table 3.1: IOS-445 ID Space Identification (ID) ROM
Hex Offset
From ID
ROM Base
Address
Numeric
Value
(Hex)
Field Description
00
49
02
50
04
41
06
43
08
A3
Acromag ID Code
0A
09
IOS Model Code1
0C
00
Not Used
(Revision)
0E
00
Reserved
10
00
Not Used
12
00
Not Used
14
0C
Total Number of
ID ROM Bytes
16
8C
CRC
18 to 3E
00
Not Used
Notes (Table 3.1):
1. The IOS model number is represented by a two-digit code
within the ID space (the IOS-445 model is represented by 09
Hex).
2. Execution of an ID space read requires 0 wait states.

SERIES IOS-445 I/O SERVER MODULE 32 CHANNEL ISOLATED SSR OUTPUT MODULE
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I/O SPACE ADDRESS MAP
This board is addressable in I/O space to control the 32
channels of digital output to the field.
The I/O space may be as large as 64, 16-bit words (128 bytes),
but the IOS-445 uses only a portion of this space. The I/O space
address map for the IOS-445 is shown in Table 3.2. Note that the
base address for the IOS module I/O space (see your carrier board
instructions) must be added to the addresses shown to properly
access the I/O space. Accesses may be performed on an 8 or 16-
bit basis but only D0-D7 are driven. D08-D15 are not used but will
normally read high due to pull-up resistors on the carrier board.
The following table shows the memory map for the IOS-445.
Data is read and written to one of four groups (ports) as designated
by the address.
Table 3.2: IOS-445 I/O Space Address (Hex) Memory Map2
Base
Addr+
MSB
D15
D08
LSB
D07
D00
Base
Addr+
01
Not Used
Control Register
00
03
Not Used
Output Port 0
CH07 CH00
02
05
Not Used
Output Port 1
CH15 CH08
04
07
Not Used
Output Port 2
CH23 CH16
06
09
Not Used
Output Port 3
CH31 CH24
08
0B
Not Used
0A
7F
Not Used
7E
Notes (Table 3.2):
1. The IOS will not respond to addresses that are "Not Used".
2. All Register accesses implement 0 wait state data transfers.
REGISTER DEFINITIONS
Control Register, (Write) - (Base + 00H)
This write only register is used to reset all output ports to 0
(SSR switches OFF).
Table 3.3: Control Register
BIT
FUNCTION
0
1 = Software Reset
1 to 7
Not Used
Port Output Registers (Read/Write, 02H, 04H, 06H, and 08H)
Four registers are provided to control 32 possible output points.
Data can be read from or written to one of four groups of eight
output lines (Ports 0-3), as designated by the address and
read/write signals. Each port assigns the least significant data line
(D0) to the least significant output line of the port grouping (e.g.
OD00 for port 0 to D0).
REGISTER 0 (OUTPUT SWITCHES 00 THROUGH 07):
MSB __ __ __ __ __ __ LSB
07 06 05 04 03 02 01 00
CH07....................................................................................CH00
REGISTER 1 (OUTPUT SWITCHES 08 THROUGH 15):
MSB __ __ __ __ __ __ LSB
07 06 05 04 03 02 01 00
CH15....................................................................................CH08
REGISTER 2 (OUTPUT SWITCHES 16 THROUGH 23):
MSB __ __ __ __ __ __ LSB
07 06 05 04 03 02 01 00
CH23....................................................................................CH16
REGISTER 3 (OUTPUT SWITCHES 24 THROUGH 31):
MSB __ __ __ __ __ __ LSB
07 06 05 04 03 02 01 00
CH31....................................................................................CH24
Write a zero to each channel‟s position to turn the
corresponding SSR OFF. Write a one to each channel‟s position to
turn the corresponding SSR ON.
Each output channel register can be conveniently read back for
verification purposes. For critical control applications, it is
recommended that outputs be directly fed back to an input point
and the input point monitored (loopback I/O). Acromag Model IOS-
440 32-channel isolated input modules can be used to implement
loopback output monitoring with this model (see IOS-440/IOS-445
LOOPBACK CONNECTIONS).
On power-up, hardware reset, or software reset, the ports are
reset to 0 forcing the outputs (SSR‟s) to be OFF.

SERIES IOS-445 I/O SERVER MODULE 32 CHANNEL ISOLATED SSR OUTPUT MODULE
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4.0 THEORY OF OPERATION
This section contains information regarding the basic
functionality of the circuitry used on the IOS-445. Refer to the IOS-
445 BLOCK DIAGRAM located at the end of this manual as you
review this material.
OUTPUT PORTS
The field I/O interface to the carrier board is provided through
connector P2 (refer to Table 2.1). Individual Solid State Relays
(SSR‟s) for each channel isolate the field from the control logic for
the IOS-445. Channels are isolated from each other in groups of
eight. There are eight channels to a group or port. Because the
output lines of a single port share a common connection, individual
outputs are not isolated from each other within the same port.
However, separate port commons are provided to facilitate port-to-
port isolation.
32 Single Pole Single Throw - Normally Open (SPST-NO,
“1 Form A”) SSR outputs are controlled by this module. Each
group of eight channels can be connected directly to positive or
negative supplies for high (hot) side switching. Alternatively, each
group of eight channels can be connected to common for low side
switching. Socketed pull-up resistors are provided for low side
switching applications. These resistors should be removed if high
side switching is needed. In low side switching applications the
resistor values can be changed (e.g. lower values will provide a
faster pull-up while a higher values will keep power dissipation from
becoming a problem at higher voltages) - see Specifications in
Chapter 6 for details.
The SSR‟s are controlled by output registers within the FPGA.
Writing a „1‟ to the output register will turn the switch ON (closed-
circuit) while writing a „0‟ will turn it OFF (open-circuit). Readback
of the output state is accomplished by reading the output registers.
However, for complete confidence in output control, loopback
should be performed. This may be accomplished using the IOS-
440 isolated digital input module (refer to IOS-440/IOS-445
LOOPBACK CONNECTIONS).
The SSR‟s employed are rated for a much higher voltage than
specified. However, the field connector and printed circuit board
foil spacings limit applied voltages to +/-60VDC or AC peak. Each
port (group of eight channels) has a single common. Since the
connectors and cables are rated to 1A maximum per pin, then each
port is limited to that total current. Thus, the sum of currents
conducted by the 8 channels must stay below that total (see
specifications in Chapter 6 for details). The low on resistance of
the SSR‟s helps reduce their power dissipation when they conduct
high currents; however, given the large number of channels on the
board adequate air circulation must be maintained. The SSR‟s
used in the IOS-445 are very rugged and contain built-in current
limiting for their protection. They provide clean, bounce free
switching and can replace electromechanical relays in many
applications. SSR switching speeds are comparable to
electromechanical relays (1mS. typical) but are slow compared to
high speed optocouplers.
Output operation is “Fail-safe”. That is, the outputs are always
OFF upon power-up reset, and are automatically cleared following
a software (control register) or system software reset. This is done
for safety reasons to ensure reliable control of the output state
under all conditions.
5.0 SERVICE AND REPAIR
SERVICE AND REPAIR ASSISTANCE
Surface-Mounted Technology (SMT) boards are generally
difficult to repair. It is highly recommended that a non-functioning
board be returned to Acromag for repair. The board can be
damaged unless special SMT repair and service tools are used.
Further, Acromag has automated test equipment that thoroughly
checks the performance of each board. When a board is first
produced and when any repair is made, it is tested, placed in a
burn-in room at elevated temperature, and retested before
shipment.
Please refer to Acromag's Service Policy Bulletin or contact
Acromag for complete details on how to obtain parts and repair.
PRELIMINARY SERVICE PROCEDURE
Before beginning repair, be sure that all of the procedures in
Section 2, Preparation For Use, have been followed. Also, refer to
the documentation of your carrier board to verify that it is correctly
configured. Verify that there are no blown fuses. Replacement of
the carrier and/or IOS with one that is known to work correctly is a
good technique to isolate a faulty board.
CAUTION: POWER MUST BE TURNED OFF BEFORE
REMOVING OR INSERTING BOARDS
WHERE TO GET HELP
If you continue to have problems, your next step should be to
visit the Acromag worldwide web site at http://www.acromag.com.
Our web site contains the most up-to-date product and software
information.
Go to the “Support” tab to access:
Application Notes
Frequently Asked Questions (FAQ‟s)
Product Knowledge Base
Tutorials
Software Updates/Drivers
An email question can also be submitted from within the
Knowledge Base or directly from the “Contact Us” tab.
Acromag‟s application engineers can also be contacted directly
for technical assistance via telephone or FAX through the numbers
listed below. When needed, complete repair services are also
available.
Phone: [phone]
Fax: [phone]
Email: [e-mail]

SERIES IOS-445 I/O SERVER MODULE 32 CHANNEL ISOLATED SSR OUTPUT MODULE
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6.0 SPECIFICATIONS
GENERAL SPECIFICATIONS
Operating Temperature................. -40 to +85 C
Relative Humidity..........................5-95% non-condensing.
Storage Temperature....................-40 to +125 C.
Physical Configuration..................Single I/O SERVER MODULE
Length................................... 4.030 in. (102.36 mm).
Width.....................................1.930 in. (49.02 mm)
Board Thickness....................0.062 in. (1.59 mm)
Height……………………........0.500 in. (12.7 mm)
Power Requirements:
+5 Volts ( 5%) All On.............300mA, Typical
400mA, Maximum.
+5 Volts ( 5%) All Off.............8.5mA, Typical
12mA, Maximum.
12 Volts ( 5%) from P1........0mA (Not Used).
Isolation.........................................Logic and field connections are
optically isolated by SSR‟s.
Individual ports are also isolated
from each other. However,
output lines of individual ports
share a common connection and
are not isolated from each other.
Separate port commons are
provided to facilitate port-to-port
isolation. IOS Logic and field
lines are isolated from each
other for voltages up to 250VAC,
or 354V DC on a continuous
basis (unit will withstand a 1500V
AC dielectric strength test for
one minute without breakdown).
This complies with test
requirements outlined in
ANSI/ISA-S82.01-1988 for the
voltage rating specified. Port to
port isolation is less critical and
is specified as 100V DC.
Isolation Spacing...........................Printed circuit board minimum
isolation spacings are as follows:
Port-to-Logic:
0.024” Minimum (inner layer),
0.071” Minimum (external layer).
Port-to-Port:
0.012” Minimum (inner layer),
0.040” Minimum (external layer).
DIGITAL (SSR) OUTPUTS
Output Channel Configuration.......32 isolated Solid State Relay
(SSR) outputs supporting AC
or DC (high or low side
switching) operation.
SPST-NO, “1 Form A” contacts.
“OFF” Voltage Range.....................0 to +/-60V DC or peak AC.
Output “OFF” Leakage Current......1uA Maximum (over temp.).
Output “ON” Current Range...........140mA Maximum continuous
(up to 1A total per port)
No deration required at elevated
ambients.
Output ON Resistance..................15 , Maximum (25 C).
Output Current Limiting..................480mA Maximum.
Turn-ON Time................................1mS. Typical, 2mS. Maximum.
Turn-OFF Time..............................1mS. Typical, 2mS. Maximum.
Reset Condition..............................All output SSR‟s OFF.
Output Pull-up Resistors................Socketed 4.7K (used in low
side switching applications).
See IOS-445 RESISTOR
LOCATION DRAWING: Res.
Loc. Dwg. Calculate resistor
power for user supplied voltage
(Power = V2/R). Limit power to
0.1 Watt per resistor (21.7V max.
@ 4.7K ). Remove or insert
higher value. (consult factory) for
higher voltages. Install lower
value (check power) to obtain
faster, stronger pull-up. Remove
for high side switching
applications.
TTL Compatibility...........................Yes, used as low side switch
can sink 27mA. @ 0.4V
Maximum; source 500uA @ 2.4V
Min. with 4.7K pull-up to 5V
supply.
Resistance to RFI.........................No digital upsets occur for field
strengths up to 10V per meter at
27MHz, 151MHz, & 460MHz per
SAMA PMC 33.1 test
procedures.
Resistance to EMI........................ Unit has been tested with no
digital upsets under the influence
of EMI from switching solenoids,
commutator motors, and drill
motors.
ESD Protection.............................Output lines are protected from
ESD voltages to 4KV. May
degrade 4.7K pullups by 5%.

SERIES IOS-445 I/O SERVER MODULE 32 CHANNEL ISOLATED SSR OUTPUT MODULE
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Acromag, Inc. Tel:[phone] Fax:[phone] Email:[email protected] http://www.acromag.com

SERIES IOS-445 I/O SERVER MODULE 32 CHANNEL ISOLATED SSR OUTPUT MODULE
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Acromag, Inc. Tel:[phone] Fax:[phone] Email:[email protected] http://www.acromag.com

SERIES IOS-445 I/O SERVER MODULE 32 CHANNEL ISOLATED SSR OUTPUT MODULE
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Acromag, Inc. Tel:[phone] Fax:[phone] Email:[email protected] http://www.acromag.com