schneiderSystem Planning and Installation Guide for Model PC-E984-3811385 & PC-E984-385D

This guide describes the PC-E984-381 and PC-E984-385/385D Programmable 

Logic Controller systems together with system planning information and installation procedures. 

For brevity and your convenience, the PC-E984-381/385 controller is referred to 

in context as the Model 381 E or 385E. Both Model 381 E and 385E are enhanced 

with an extra Modbus Port.. The 385D is a 125 VDC version which is otherwise 

just like a 385E. 

In the context of this manual, the terms “Programmable Controller” and “Programmable Logic Controller” have been abbreviated to “PLC” for brevity. References to 

IBMs ’ personal computer are written out or in context with IBMs ’ initials. 

It is necessary to say that the information in this document is subject to change 

without notice and should not be construed as a commitment by MODICON, Inc., 

Industrial Automation Systems. MODICON, Inc. assumes no responsibility for any 

errors that may appear in this document. Further, no part of this document may be 

reproduced in any form or by any means, electronic or mechanical, without the express written permission of MODICON, Inc., Industrial Automation Systems. All 

rights reserved. 

The following are MODICON, Inc. trademarks: 

Modicon@ Pi90 984A 984-380 984-381 E984-381 

984-385 E984385 D984-385 Micro 984 984 9848 

984-480 E984-480 984-485 E984-485 984-680 ModbusB 

984x 984-885 E984-885 984-780 984-785 E984-785 

984-785L 984-i 20 984-l 30 984-l 45 984-351 984-455 

Modsoft@ Modbus Plus 

IBM8 is a registered trademark of International Business Machines, Inc.; IBM PC 

is a trademark of International Business Machines, Inc. 

0 Copyright 1992 Modicon, Inc. 

This manual has been written to help you plan, configure, mount, wire, connect, 

check out and, if necessary, troubleshoot your PC-E984_381/385/385D PC system. After reading this publication: 

A Control Engineer will be able to identify and physically plan the location and 

mounting of system components. 

A Plant Electrician/Installer will be able to install, power-up and check out the 

system. 

A Maintenance Technician will be able to recognize, locate, identify and resolve 

or report system failures. 

How To Use This Manual 

Chapter 1 describes the E984-38x model PC systems ’ functions. 

Chapter 2 offers information for planning your installation with Local I/O. 

Chapter 3 is an installation procedure for your controller with local I/O. 

Appendix A gives system specifications including a summary table of l/O module 

specifications. 

Appendix B gives Stopped Error Codes, MODBUS cable connector pinouts, a 

table of MODICON 381 E/385E/385D system end-user part numbers, Customer 

Service/Technical Support telephone numbers, and Installation Verification troubleshooting charts. 

GM-MSFT-001 

GM-0984-SYS 

Modsoft Programmer User Guide 

984 Programmable Controller Systems 

Manual 

Incoming Inspection Guidelines 

Procedure Guidelines for inspection 

Step 1 Before you do anything, verify your shipment is complete and undamaged. If the shipment is incomplete or 

damaged, notify the carrier and your distributor. 

Step 2 Remove everything from its packing and check for 

physical defects or damage. If the equipment is physically 

defective or damaged, notify your MODICON representative. 

li7 Note Save shipping materials until installation is complete. 

Sending Something Back? 

o To the extent possible, use the original packing materials supplied by 

MODICON. 

o All equipment should be firmly packed so that it cannot move around in its shipping container. 

o All equipment should be protected against impact during shipment. 

Overview 

The Modicon 984 Model 381 E, 385E and 385D Controller is a mid-range Programmable Logic Controller in a modular, expandable, architecture. It employs 

Modicon 800 series housings, interfaces and I/O modules. The Model “E” is supported by the same instruction set as the other 984 Controller models and is programmed by the Modicon Modsoft Programming Panel. 

IF Note The 385D Model is the same as the 385E except it is the 

125VDC version. 

Figure 1 is a perspective view of the 381 E/385E and 385D systems ’ controller 

module with built-in power supply. Certain physical features are noted. 

System Features 

The Model 381 E/385E/385D systems ’ features are described below followed by 

somewhat more detailed functional descriptions. 

System Capacity 

The Model 381 E/385E memory provisions are summarized in Table 1: 

The user logic and state RAM support one local drop. This local drop has a maximum I/O module capacity of 21 I/O Modules (19 modules if an auxiliary power 

supply is required) and up to 512 discrete points of local I/O (any mix). 

Executive NV RAM 

The Model “E” controller has its ’ bootable memory and executive software downloaded to Non Volatile RAM during the manufacturing process and is not accessible to the user.