Rockwell Automation 1738-232ASCM12 User Manual
Installation Instructions
ArmorPoint I/O RS-232 ASCII Module,
Series A
(Cat. No. 1738-232ASCM12)
The ArmorPoint I/O family (Cat. no. 1738) consists of modular I/O
modules. The sealed IP67 housing of these modules requires no
enclosure. (Note that environmental requirements other than IP67
may require an additional appropriate housing.) The I/O connector is
a sealed M12 (micro) style. The mounting base ships with the module.
The 1738-232ASCM12 module is shown below.
1738-232ASCM12
M12 Connector
1738-232ASCM12/A
ASCII Interface
MOD
NET
TxD
RxD
LED Indicators
43799
1 Publication 1738-IN009A-EN-E - June 2004
2 ArmorPoint I/O RS-232 ASCII Module, Series A
SHOCK HAZARD
Important User Information
Solid state equipment has operational characteristics differing from those of electromechanical equipment.
Safety Guidelines for the Application, Installation and Maintenance of Solid State Controls (Publication
SGI-1.1 available from your local Rockwell Automation sales office or online at
http://www.ab.com/manuals/gi) describes some important differences between solid state equipment
and hard-wired electromechanical devices. Because of this difference, and also because of the wide
variety of uses for solid state equipment, all persons responsible for applying this equipment must satisfy
themselves that each intended application of this equipment is acceptable.
In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages
resulting from the use or application of this equipment.
The examples and diagrams in this manual are included solely for illustrative purposes. Because of the
many variables and requirements associated with any particular installation, Rockwell Automation, Inc.
cannot assume responsibility or liability for actual use based on the examples and diagrams.
No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits,
equipment, or software described in this manual.
Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell
Automation, Inc. is prohibited.
Throughout this manual we use notes to make you aware of safety considerations.
WARNING
Identifies information about practices or circumstances that can cause an explosion in a
hazardous environment, which may lead to personal injury or death, proper ty damage,
or economic loss.
IMPORTANT
ATTENTION
BURN HAZARD
Identifies information that is critical for successful application and understanding of the
product.
Identifies information about practices or circumstances that can lead to personal injury or
death, property damage, or economic loss. Attentions help you:
• identify a hazard
• avoid a hazard
• recognize the consequence
Labels may be located on or inside the equipment to alert people that dangerous voltage
may be present.
Labels may be located on or inside the equipment to alert people that surfaces may be
dangerous temperatures.
.
Publication 1738-IN009A-EN-E - June 2004
ArmorPoint I/O RS-232 ASCII Module, Series A 3
ATTENTION
Environment and Enclosure
This equipment is intended for in overvoltage
Category II applications (as defined in IEC
publication 60664-1), at altitudes up to 2000 meters
without derating.
This equipment is considered Grou p 1, Class A
industrial equipment according to IEC/CISPR
Publication 11. Without appropriate precautions,
there may be potential difficulties ensuring
electromagnetic compatibility in other environments
due to conducted as well as radiated disturbance.
This equipment is supplied as "enclosed" equipment.
It should not require additional system enclosure
when used in locations consistent with the enclosure
type ratings stated in the Specifications section of this
publication. Subsequent sections of this publication
may contain additional information regarding
specific enclosure type ratings, beyond what this
product provides, that are required to comply with
certain product safety certifications.
NOTE: See NEMA Standards publication 250 and
IEC publication 60529, as applicable, for
explanations of the degrees of protection provided
by different types of enclosure. Also, se e the
appropriate sections in this publication, as well as
the Allen-Bradley publication 1770-4.1 ("Industrial
Automation Wiring and Grounding Guidelines"), for
additional installation requirements pertaining to this
equipment.
Publication 1738-IN009A-EN-E - June 2004
4 ArmorPoint I/O RS-232 ASCII Module, Series A
1.9 in.
2.0 in.
0.87 in.
2.0 in.
0.87 in.
2.0 in.
Mount the I/O Base
ATTENTION
Preventing Electrostatic Discharge
This equipment is sensitive to electrostatic dischar ge,
which can cause internal damage and affect normal
operation. Follow these guidelines when you handle
this equipment:
• Touch a grounded object to discharge potential
static.
• Wear an approved grounding wriststrap.
• Do not touch connectors or pins on component
boards.
• Do not touch circuit components inside the
equipment.
• If available, use a static-safe workstation.
• When not in use, store the equipment in
appropriate static-safe packaging.
To mount the ArmorPoint I/O base on a wall or panel, use the screw
holes provided in the ArmorPoint base.
Adapter
4.02 in.
102 mm
IMPORTANT
The ArmorPoint I/O module must be mounted on a
grounded metal mounting plate or other conductive
surface.
A mounting illustration for the ArmorPoint base with an adapter is
shown below.
1.81 in.
46 mm
47.2 mm
50 mm
22 mm
50 mm
22 mm
50 mm
43769
Publication 1738-IN009A-EN-E - June 2004
ArmorPoint I/O RS-232 ASCII Module, Series A 5
Mounting base
Install the mounting base as follows:
1. Lay out the required points as shown above in the drilling
dimension drawing.
2. Drill the necessary holes for #8 (M4) machine or self-tapping
screws.
3. Mount the base using #8 (M4) screws.
4. Ground the system using the ground lug connection. (The
ground lug connection is also a mounting hole.)
KeyswitchSet to position 2 for
the 1738 specialty
modules
Ground lug connection
43675
Latching mechanism
Publication 1738-IN009A-EN-E - June 2004
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