Hardware reference guide

CPU Modules
35013379 02 October 2007 175
Specifications The following table shows the specifications for the CPU43412A Controller module.
Specifications
User Logic/Reference Capacity 984 Ladder
Logic
Discrete Register Extended
Register
IEC
Application
64 k words 64 k 57 k 96 k 800 k
57,766 4XX registers max
Only if:
0XXX = 16 and
1XXX = 16 and
3XXX = 16
Reference Capacity
Discrete 64 k - any mix
Local I/O
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 and 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 words
input of overhead.)
500 In and 500 Out
Maximum Words per Node 30 In and 32 Out
*This information can be a mix of Discrete or Register I/O. For each word of register I/O configured, one word must
be subtracted from the total available. The same holds true for each block of 8 bits or 16 bits of Discrete I/O
configured--one word must be subtracted from the total available.
**Requires the use of two140NOM21X00 Option Modules.
Maximum Number of Network
Module Interfaces
6
Watchdog Timer 250 ms (software adjustable)
Logic Solve Time 0.1 ms / k to 0.5 ms / k
Battery
Type 3 V Lithium
Service Life 1200 mAh
Shelf Life 10 years with 0.5% loss of capacity per year
Battery Load Current at Power-off
This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.com