Specifications
February 2009
CA08102001E For more information visit: 
www.eaton.com
50-3
PLC, I/O & Communications Products
50
ELC Programmable Logic Controllers
ELC Controllers / Modules
Catalog Number Selection
Table 50-1. ELC Controllers/Modules Catalog Numbering System
ELC Controller Features
There are 5 controller styles:
■
PB Series (Basic)
 – 14 I/O (8i/6o). 
Over 130 instructions provide all the 
power you need. Add expansion 
modules to the right side of the unit 
to create applications with up to 230 
I/O points. Two Modbus (ASCII/RTU) 
serial ports for master/slave com-
munications. The master port is 
RS-485 with the ability to communi-
cate to 31 other devices. The master 
port can also be configured to com-
municate to devices such as ASCII, 
bar code readers, etc. The program 
is stored in EEPROM for retention in 
the event of power loss. This unit 
does not provide a real-time clock.
■
PC Series (Clock/Calendar)
 – 12 I/O 
(8i/4o). Same features as the basic 
model plus clock/calendar, distrib-
uted I/O capability with up to 16 
devices, and file area for data stor-
age and retrieval. The program is 
stored in RAM with battery backup. 
The replaceable battery has greater 
than a 5-year life. This unit also has 
2 digital potentiometers that vary 
the data in internal registers.
■
PA Series (Analog)
 – 10 I/O (6i/4o). 
Same features as PC Series with a 
different I/O mix. This unit has a 
total I/O mix of 4 digital inputs, 
2 digital outputs, 2 analog inputs, 
and 2 analog outputs. The analog 
channels can be set up for either 
voltage or current. This unit has 
(2) 7-segment LEDs that can be 
used to display unit ID, error codes, 
process steps, etc.
■
PH Series (High-Speed)
 – 12 I/O 
(8i/4o). All the features of the PC 
Series with the added ability to 
capture or output pulses up to 100 
kHz and includes single-axis motion 
control.
■
PV Series (Advanced)
 – 28 I/O 
(16i/12o). The PV Series has the 
most extensive feature set of the 
ELC controllers. It allows for expan-
sion up to 508 I/O points and is 
compatible with the same expan-
sion modules, specialty modules 
and software. Programs written 
for the other controllers can be 
migrated to a PV controller where 
greater speed or more I/O is 
required. Compared to the current 
ELC controllers, the PV series 
provides 10 times improvement 
in speed for about 0.24µ seconds/
step. The program is stored in RAM 
and backed using a rechargeable 
lithium-ion battery. No need to 
change batteries. Controller also 
includes 2-axis motion control.
The new PV series controller adds an 
additional expansion bus to the left of 
the controller. While the PV series is 
compatible with today’s current 
expansion modules, which extend to 
the right of the controller, you can 
add high-speed and specialty modules 
to the left. Left side Ethernet master 
and DeviceNet master modules are 
available for use with the PV Series 
controller.
Device Type
PB = Processor without clock
PC = Processor with clock
PH = Processor with clock and 
high-speed I/O
PA = Processor with clock and 
embedded analog
PV = Processor with clock, high-speed 
I/O and high-speed CPU
AN = Analog Expansion Module
EX = Digital Expansion Module
PT = Platinum RTD Expansion Module
TC = Thermocouple Expansion Module
E L C - PA  10 A A D R
I/O Count
xx = Total Number
of I/O
Digital Outputs
T = Transistor
R = Relay
I = High Current Relay
N = None
Digital Inputs
A = AC
D = DC
S = Switch
N = None
Analog Outputs
A = Analog
N = None
Analog Inputs
A = Analog
N = None










