Allen-Bradley 1757-PIM User manual

Publication 1757-IN900A-US-P - February 2000
Installation Instructions
ProcessLogix Pulse Input Module
Catalog no. 1757-PIM
This document tells you how to install the 1757-PIM (Pulse Input Module) into the
ProcessLogix™ System. For more specific information regarding the placement of
the 1757-PIM in non-redundant and redundant configurations, refer to the
ProcessLogix System Planning Guide in Knowledge Builder.
What is the Pulse Input Module?
The 1757-PIM (Pulse Input Module) is a new addition to the ProcessLogix Rack
I/O family.
The 1757-PIM is a single-wide I/O module that serves as the interface board
between the ProcessLogix controller and field transducers that provide pulse inputs.
Typically the 1757-PIM might be used to accept pulse inputs from:
•tachometers, to determine required speeds of rotation for motors, fans and
pumps
•flowmeters, to determine totalized process flows such as inputs to batch
dosing operations
The 1757-PIM provides up to eight input channels and two output channels. Each
of the eight channels has a 32-bit counter to perform pulse counting and frequency
calculation for signals up to 100 KHz. Six of the eight channels also have a second
32-bit timer counter for pulse period and pulse width measurements. The
remaining channels provide pulse counting and frequency calculations and have
associated outputs that can be used for fast cut-off applications. The 1757-PIM
provides channel-to-channel and terminal-to-backplane isolation.
The 1757-PIM uses the standard 36-pin terminal block and interfaces directly to
single-ended devices. The threshold level for each channel is software configurable
and selections are either LOW (approx. 3.25V typical) or HIGH (approx. 8.80V
typical) for a high-level voltage level. The 1757-PIM interfaces directly to 5 to 24V
signal values.

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Publication 1757-IN900A-US-P - February 2000
Important User Information
Because of the variety of uses for the products described in this publication, those
responsible for the application and use of this control equipment must satisfy
themselves that all necessary steps have been taken to assure that each application
and use meets all performance and safety requirements, including any applicable
laws, regulations, codes and standards.
The illustrations, charts, sample programs and layout examples shown in this guide
are intended solely for purposes of example. Since there are many variables and
requirements associated with any particular installation, Allen-Bradley does not
assume responsibility or liability (to include intellectual property liability) for actual
use based upon the examples shown in this publication.
Allen-Bradley publication SGI-1.1, Safety Guidelines for the Application, Installation
and Maintenance of Solid-State Control (available from your local Allen-Bradley
office), describes some important differences between solid-state equipment and
electromechanical devices that should be taken into consideration when applying
products such as those described in this publication.
Reproduction of the contents of this copyrighted publication, in whole or part,
without written permission of Rockwell Automation, is prohibited.
Throughout this manual we use notes to make you aware of safety considerations.
Attention statements help you to:
•identify a hazard
•avoid a hazard
•recognize the consequences
Allen-Bradley is a trademark of Rockwell Automation
ATTENTION
!
Identifies information about practices or circumstances that can
lead to personal injury or death, property damage or economic
loss
IMPORTANT Identifies information that is critical for successful application
and understanding of the product.

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Publication 1757-IN900A-US-P - February 2000
Installing the Module
Follow the procedure below to install the module.
Making Field Wiring Connections
Refer to the following pinout/wiring diagram to wire the module.
Figure 1 Pinouts and Wiring Example
ATTENTION
!
This input module permits the field-side input device (switch)
to be located on either the hot or neutral side of the source,
unless the module’s shorting bar has been installed. In this
case, the input device must be installed on the hot side of the
source.
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This diagram illustrates how the eight transmitters will interface to the 36 Positions Terminal Block.
For instance, Transmitter 0 will be connected to Pins 1, 3 and 5 where:
•Pin 1 is the Signal
•Pin 3 is the Signal Common
•Pin 5 is the Chassis Ground Shield Connection
The Output Channel 0 will connect to Pins 33 and 35 and Output Channel 1 will connect to Pins 34
and 36.

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Publication 1757-IN900A-US-P - February 2000
Installing the Module in the Chassis
 Position the module at any slot in the chassis except for slot 0.
 Align the module’s circuit board with the top and bottom chassis guides.
 Slide the module into the chassis until the module tabs click into position
Configuring the Module
You can customize the 1757-PIM by changing its name, description, slot location,
MAC address, as well as Module, Channel, Status/Data and Server configuration
parameters. Perform the following steps to customize the 1757-PIM.

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 Access Control Builder.
 Add a new 1757-PIM from the library.
a. Open the Library and Project tree views.
b. In the Library tree view, click on the 1757-PIM icon and drag it to the
Project tree window.
 Right-click on the desired IOM instance on the Project tree window.
 Click on Configure Param. You see the Main, Module Configuration, Channel
Configuration, Status/Data and Server Parameters configuration tabs.
 Under the Main tab (see figure below), enter a Module Name that is more
meaningful to you than its default IOMxxx (xxx represents a pre-assigned
number).

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Publication 1757-IN900A-US-P - February 2000
 If desired, enter a Module Description to explain the function of the
1757-PIM (such as Test Strategy PIM). This is not a required field.
 Enter appropriate values for IOM Slot Number, Remote IO Chassis MAC
Address and CNI Slot Number. If necessary, press F1 to access on-line help
for assistance during this step.
 Use the following procedures to configure parameters on the remaining tabs
for the 1757-PIM, or click OK to accept only the changes made so far and
return to the Project tree.
 Under the Module Configuration tab (see figure below), enter desired values
for configuration parameters. If necessary, press F1 to access on-line help for
assistance during this step.
TIP
The only available choice is whether or not to select the
Alarming Enabled checkbox. Once the module has been
loaded and activated, additional parameters (such as Execution
State) may be configured on the Monitoring Tree window.

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 Continue with the following procedures to configure parameters on the
remaining tabs for the 1757-PIM, or click OK to accept only the changes
made so far and return to the Project tree.
 Under the Channel Configuration tab (see figure below), enter desired
values for configuration parameters. If necessary, press F1 to access on-line
help for assistance during this step.

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Publication 1757-IN900A-US-P - February 2000
 Continue with the following procedures to configure parameters on the
remaining tabs for the 1757-PIM, or click OK to accept only the changes
made so far and return to the Project tree.
 Under the Status/Data tab (see figure below), enter desired values for
configuration parameters. If necessary, press F1 to access on-line help for
assistance during this step.

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Publication 1757-IN900A-US-P - February 2000
 Continue with the following procedures to configure parameters on the
remaining tabs for the 1757-PIM, or click OK to accept only the changes
made so far and return to the Project tree.
 Under the Server Parameters tab (see figure below), enter the appropriate
information such as filenames for desired display templates (Point Detail
Page, Group Detail Page and Associated Displays), along with values for
appropriate parameters such as for Control Level, Control Area, and EU
HI/EU LO parameters. If necessary, press F1 to access on-line help for
assistance during this step.

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Publication 1757-IN900A-US-P - February 2000
 Click OK on the configuration form to accept all configuration selections
made on each configuration tab and to return to the Project tree.
For Technical Assistance
For technical assistance, call Rockwell Automation Technical Support at(440)
646-6800.