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
6 ArmorPoint I/O RS-232 ASCII Module, Series A
Install the ArmorPoint RS-232 ASCII Module
To install the ArmorPoint RS-232 ASCII module, proceed as follows.
1. Using a bladed screwdriver, rotate the keyswitch on the
mounting base clockwise until the number 2 aligns with the
notch in the base.
2. Position the module vertically above the mounting base. The
module will bridge two bases.
Module will bridge two bases.
1738-232ASCM12/A
ASCII Interface
MOD
NET
TxD
RxD
43800
3. Push the module down until it engages the latching mechanism.
You will hear a clicking sound when the module is properly
engaged.
The locking mechanism will lock the module to the base.
Remove the ArmorPoint RS-232 ASCII Module From the
Mounting Base
To remove the module from the mounting base:
1. Put a flat blade screwdriver into the slot of the orange latching
mechanism.
2. Push the screwdriver toward the I/O module to disengage the
latch.
The module will lift up off the base.
Publication 1738-IN009A-EN-E - June 2004
3. Pull the module off of the base.
ArmorPoint I/O RS-232 ASCII Module, Series A 7
Wire the RS-232 ASCII Modules
Following are wiring instructions for the ArmorPoint RS-232 ASCII
module.
1738-232ASCM12
(view into connector)
Pin 1 - No Connect
Pin 2 - Tx +
Pin 3 - Rx +
Pin 4 - Common
Pin 5 - No Connect
43664
IMPORTANT
The 1738-232ASCM12 module has earth grounded
metal rings. This should be considered when
choosing shielded cables and grounding techniques.
ATTENTION
Make sure all connectors and caps are securely
tightened to properly seal the connections against
leaks and maintain IP67 requirements.
Publication 1738-IN009A-EN-E - June 2004
8 ArmorPoint I/O RS-232 ASCII Module, Series A
s
rs
rs
Communicate With Your Module
Troubleshoot with the Indicators
The ASCII module operates as the PointBus front-end to your serial
device. Data can be exchanged with the master through a polled,
cyclic, or change of state connection. The module produces and
consumes 4 to 132 bytes of data.
1738-232ASCM12
1738-232ASCM12/A
ASCII Interface
MOD
NET
TxD
RxD
Module Status Indicator
Network Status Indicato
I/O Status Indicato
43799
Indication Probable Cause
Module Status
Off No power applied to device
Green Device operating normally
Flashing Green Device needs commissioning due to missing, incomplete, or
incorrect configuration
Flashing Red Recoverable fault
Red Unrecoverable fault - may require device replacement
Flashing Red/Green Device is in self-test
Publication 1738-IN009A-EN-E - June 2004
ArmorPoint I/O RS-232 ASCII Module, Series A 9
Indication Probable Cause
Network Status
Off Device is not on line:
- Device has not completed dup_MAC_ID-id test.
- Device not powered - check module status indicator.
Flashing Green Device is on line but has no connections in the established state.
Green Device is on line and has connections in the established state.
Flashing Red One or more I/O connections in timed-out state.
Red Critical link failure - failed communication device. Device
detected error that prevents it from communicating on the
network.
Flashing Red/Green Communication faulted device - the device has detected a
network access error and is in communication faulted state.
Device has received and accepted an Identity Communication
Faulted Request - long protocol message.
Indication Probable Cause
Transmit/Receive Status
Flashing Transmit/Receive Check wiring, ground, and Rx connection. User
parameter object to view record numbers.
Flashing Receive/ Off Transmit Check wiring. Watch the Tx light. If is does not flash,
check to ensure that you are properly initiating
transmission. Use the EDS parameter object to try
transmitting and watch the light. If it flashes, you are
not properly initiating transmission via I/O messaging. If
it does flash, check the remote device.
Off Transmit/Green Receive Check connections as you may have wired the device
backwards.
Publication 1738-IN009A-EN-E - June 2004
10 ArmorPoint I/O RS-232 ASCII Module, Series A
Specifications
ArmorPoint 1738-232ASCM12 Module
Inputs per Module 1 full duplex
Input Voltage
“0”, Asserted, ON, Space, Active
“1”, Disasserted, OFF, Mark, Inactive
Indicators 1 green/red module status indicator, logic side
Keyswitch Position 2 (specialty)
PointBus Current, Maximum 75 mA @ 5V dc
Power Dissipation, Maximum 0.75 W @ 28.8V dc
Thermal Dissipation, Maximum 2.5 BTU/hr. @ 28.8V dc
Isolation Voltage
(continuous-voltage withstand rating)
External dc Power
Supply Voltage
Voltage Range
Supply Current
Serial Port Parameters
Serial Character Framing 7N2, 7E1, 7O1, 8N1, 8N2, 8E1, 8O1, 7E2, 7O2
Serial Port Comm Speed 9600, 1200, 2400, 4800, 19.2k, 38.4k
Serial Port Receive from ASCII Device
Maximum Number of Receive Characters 1-128
Receive Record Start Mode No, exclude, include start delimiter
Receive Start Delimiter ASCII character
Receive Record End Mode No, exclude, include start delimiter
Receive End Delimiter ASCII character
Send (Produce) on DeviceNet to Master
Receive String Data Type Array, short_string, string
Pad Mode Pad mode disabled, enabled
Pad Character ASCII character
Receive Swap Mode Disabled, 16-bit, 24-bit, 32-bit swap
DeviceNet Handshake Mode Master/slave handshake, produce immediate
Produce Assembly Size 4-132
Serial Data 0-128 bytes
Receive Transaction ID 0-255
Serial Port Transmit to ASCII Device
Maximum Number of Transmit Characters 1-128
Transmit End Delimiter Mode No, exclude, include end delimiter
Transmit End Delimiter Character ASCII
Following are specifications for the 1738 ArmorPoint ASCII module.
Signal with respect to Signal Ground (SG)
+3 to +25V dc
-3 to -25V dc
1 green/red network status indicator, logic side
2 green TXD, RXD status indicator, logic side
50V rms
Tested at 1250V ac rms for 60s
24V dc nominal
10-28.8V dc
15 mA @ 24V dc
Fault protected to 28.8V dc
Publication 1738-IN009A-EN-E - June 2004
ArmorPoint I/O RS-232 ASCII Module, Series A 11
Consume on DeviceNet from Master
Consume String Data Type Array, short_string, string
Transmit Swap Mode Disabled, 16-bit, 24-bit, 32-bit swap
DeviceNet Record Header Mode Transmit handshake/immediate
Consume Assembly Size 4-132
Serial Port Transmit/Explicit Messages
Transmit Serial Data String 0-128 bytes
Transmitted Serial Data Length 0-128 bytes
Transmit Transaction ID 0-255
Status TX FIFO overflow, RX FIFO overflow, RX parity error, handshake error, new data flag
General Specifications
Dimensions Inches (Metric) 1.25H x 2.63W x 4.25D (31.75H x 66.80W x 107.95D)
Operating Temperature IEC 60068-2-1 (Test Ad, Operating Cold),
IEC 60068-2-2 (Test Bd, Operating Dry Heat),
IEC 60068-2-14 (Test Nb, Operating Thermal Shock):
-20 to 60°C (-4 to 140°F)
Storage Temperature IEC 60068-2-1 (Test Ab, Un-packaged Non-operating Cold),
IEC 60068-2-2 (Test Bb, Un-packaged Non-operating Dry Heat),
-40 to 85°C (-40 to 185°F)
Relative Humidity IEC 60068-2-30 (Test Db, Un-packaged Non-operating Damp Heat):
5-95% non-condensing
Shock IEC60068-2-27 (Test Ea, Unpackaged Shock):
Operating 30g
Non-operating 50g
Vibration IEC60068-2-6 (Test Fc, Operating):
5g @ 10-500Hz
ESD Immunity IEC 61000-4-2:
6kV contact discharges
8kV air discharges
Radiated RF Immunity IEC 61000-4-3:
10V/m with 1kHz sine-wave 80%AM from 30MHz to 2000MHz
10V/m with 200Hz 50% Pulse 100%AM at 900Mhz
10V/m with 200Hz 50% Pulse 100%AM at 1890Mhz
EFT/B Immunity IEC 61000-4-4:
±2kV at 5kHz on communications ports
Surge Transient Immunity IEC 61000-4-5:
±2kV line-earth(CM) on shielded ports
Conducted RF Immunity IEC 61000-4-6:
10Vrms with 1kHz sine-wave 80%AM from 150kHz to 80MHz
Emissions CSPR 11:
Group 1, Class A
Enclosure Type Rating Meets IP65/66/67 (when marked)
Mounting Base Screw Torque #8 screw, 7.5 in. lbs. in Aluminum, 16 in. lbs. in Steel
Wiring Category
1
2 - on communications ports
Weight Imperial (Metric) 0.637 lb. (0.289 kg)
Publication 1738-IN009A-EN-E - June 2004
12 ArmorPoint I/O RS-232 ASCII Module, Series A
General Specifications (continued)
Certifications:
(when product is marked)
c-UL-us UL Listed Industrial Control Equipment, certified for US and Canada
2
CE
European Union 89/336/EEC EMC Directive, compliant with:
EN 61000-6-4; Industrial Emissions
EN 50082-2; Industrial Immunity
EN 61326; Meas./Control/Lab., Industrial Requirements
EN 61000-6-2; Industrial Immunity
C-Tick2Australian Radiocommunications Act, compliant with:
AS/NZS CISPR 11; Industrial Emissions
1. Use this Conductor Category information for planning conductor routing. Refer to Publication 1770-4.1, "Industrial Automation Wiring
and Grounding Guidelines".
2. See the Product Certification link at www.ab.com for Declarations of Conformity, Certificates, and other certification details.
Publication 1738-IN009A-EN-E - June 2004
Notes:
ArmorPoint I/O RS-232 ASCII Module, Series A 13
Publication 1738-IN009A-EN-E - June 2004
Rockwell Automation Support
Rockwell Automation provides technical information on the web to assist you in using our products. At
http://support.rockwellautomation.com, you can find technical manuals, a knowledge base of FAQs, technical and
application notes, sample code and links to software service packs, and a MySupport feature that you can customize
to make the best use of these tools.
For an additional level of technical phone support for installation, configuration and troubleshooting, we offer
TechConnect Support programs. For more information, contact your local distributor or Rockwell Automation
representative, or visit http://support.rockwellautomation.com.
Installation Assistance
If you experience a problem with a hardware module within the first 24 hours of installation, please review the
information that's contained in this manual. You can also contact a special Customer Support number for initial help
in getting your module up and running:
United States 1.440.646.3223
Monday – Friday, 8am – 5pm EST
Outside United States Please contact your local Rockwell Automation representative for any technical support issues.
New Product Satisfaction Return
Rockwell tests all of our products to ensure that they are fully operational when shipped from the manufacturing
facility. However, if your product is not functioning and needs to be returned:
United States Contact your distributor. You must provide a Customer Support case number (see phone number
above to obtain one) to your distributor in order to complete the return process.
Outside United States Please contact your local Rockwell Automation representative for return procedure.
ArmorPoint is a trademark of Rockwell Automation.
DeviceNet is a trademark of Open DeviceNet Vendor Association.
Publication 1738-IN009A-EN-E - June 2004 14 PN 957824-35
Copyright © 2004 Rockwell Automation, Inc. All rights reserved. Printed in the U.S.A.
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