Hardware reference guide

CPU Modules
118
35013379 02 October 2007
Specifications The following table shows the specifications for the 140CPU11302 CONTROLLER
module.
Specifications
984 Ladder Logic 8 k words max
Reference Capacity
Discrete 8192 In and 8192 Out max
Register 9999 max
Local I/O (Main Backplane)
Maximum I/O Words 64 In and 64 Out*
Maximum Number of I/O Racks 2 (Requires expander)
Remote I/O
Maximum I/O Words per Drop 64 In / 64 Out*
Maximum Number of Remote Drops 31
Distributed I/O
Maximum Number of Networks per
System
3**
Maximum Words per Network (For every
DIO drop, there is a minimum of two
words input of overhead.)
500 In and 500 Out
Maximum Words per Node 30 In and 32 Out
Watchdog Timer 250 ms (S/W adjustable)
Logic Solve Time 0.3 ms / k to 1.4 ms / k
Battery 3 V Lithium
Service Life 1200 mAh
Shelf Life 10 years with 0.5% loss of capacity per year
Battery Load Current @ Power-off
Typical 5 μA
Maximum 110 μA
Communication
Modbus (RS-232) 1 serial port (9-pin D-shelf)
Modbus Plus (RS-485) 1 network port (9-pin D-shell)
General
This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.com