Rockwell Automation 61C345 4 Input 4-20mA Analog Rail Module - Manual (Page 7)

1Ć1
1.0 INTRODUCTION
The products described in this instruction manual are manufactured
by Reliance Electric Industrial Company.
The 4 Input 4Ć20mA Analog Rail module allows you to connect four
input 4Ć20mA analog signals to AutoMater,ĂAutoMaxr and
DCS 5000 systems. Typically, the Analog Rail module is used with
potentiometers, valve actuators, pressure or flow transducers, and
meters in both drive control systems and process control systems.
The Analog Rail module is hardwareĆconfigurable by means of a
faceplate switch to emulate one of two types of devices, AutoMate
Rails or AutoMate Local Heads. In some hardware configurations,
the type of interface device available for the Analog Rail module will
determine the mode of operation that can be selected (see
figure 1.1).
The Analog Rail module operates in Local Head mode when it is
connected directly to one of the processor's four I/O ports in
AutoMate systems, to an AutoMate Local I/O Processor, or to one of
the four I/O ports of the DCS5000/AutoMax Remote I/O Head in
DCS5000/AutoMax systems. The Analog Rail data will take up four
registers in the host when operating in Local Head mode.
The module operates in Rail mode when it is connected to one I/O
port of a Local I/O Head, which in turn is connected to one I/O port
of an AutoMate processor. The Analog Rail module will occupy one
register of the host in Rail mode. The Rail mode is used to expand
the I/O address space available through the front I/O port of the
processor by multiplexing each group of four analog points through
one register. Note that the Analog Rail module cannot be used with
the Local I/O Head in DCS5000/AutoMax systems.
The Analog Rail module operates in Rail mode when it is connected
to one I/O port of the Power Module Interface (PMI) Processor
(B/M 60000), which is in turn connected to a Universal Drive
Controller (UDC) module (M/N 57552) which resides in an AutoMax
rack.
The remainder of this manual describes the functions and
specifications of the module. It also includes a detailed overview of
installation and troubleshooting procedures, as well as examples of
configuration and programming.
1.1 Additional Information
You must become familiar with the instruction manuals which
describe your system configuration. This may include, but is not
limited to, the following:
D JĆ3031 AutoMate 30 PROCESSOR HARDWARE INSTRUCTION
MANUAL
D JĆ3033 AutoMate LOCAL I/O PROCESSOR INSTRUCTION
MANUAL
D JĆ3037 AutoMate REMOTE I/O HEAD INSTRUCTION MANUAL
D JĆ3063 AutoMate PROGRAMMING EXECUTIVE INSTRUCTION
MANUAL
D JĆ3120 AutoMate 20 USER'S MANUAL