Toptech MultiLoad II EXL User Manual

CHAPTER 6– CONFIGURATIONS
56 MultiLoad II/ RCU II Explosion Proof Lite (EXL) Installation Guide - Part # 6070
Chapter 6 Configurations
Switch Access Control
The MultiLoad II contains switches which limit menu and configuration access. These switches limit
users from accessing Program Mode, as well as from changing Weights and Measures controlled
parameters.
In Program Mode, the operator has access to the following:
- The Configuration Menu parameters.
- The Diagnostics Menu and its functions.
- Other administrative procedures, such as clearing high-level alarms.
To access Program Mode, the MultiLoad II/ RCU II terminal operator must:
1. Move the Program Mode switch into the active position.
2. At the idle card-in screen, enter the security code (default security code is 000000) and press
the Next key.
External Switch Access Control (MultiLoad II Only)
One access control switch option is a pair of external access control switches. These switches limit
access to Program Mode and changes to Weights and Measures controlled parameters.
EXTERNAL SWITCHES SERVE NO FUNCTION ON THE RCU II SINCE PASSWORD ACCESS ALWAYS
OVERRIDES THE PROGRAM SWITCH SETTING. WEIGHTS AND MEASURES FUNCTIONALITY IS
UNDEFINED FOR THE RCU II.
YOUR LOCAL WEIGHTS AND MEASURES OFFICE MAY NEED TO BE CONTACTED AFTER BREAKING THE
SEAL AND CHANGING PARAMETERS. THIS IS TYPICALLY DONE ONLY DURING METER PROVING OR
TEMPERATURE CALIBRATION.
Chapter
6

Toptech MultiLoad II EXL Specifications

General

Brand	Toptech
Model	MultiLoad II EXL
Category	Controller
Language	English

Summary

Chapter 1 General Information & Warnings

Safety Warnings

Critical safety precautions for North American and ATEX/IECEX hazardous locations.

Electrostatic Discharge (ESD) Protection

Guidelines for handling components to prevent damage from electrostatic discharge.

Chapter 2 Operating Conditions and Components

Operating Characteristics

Key operational specifications and electrical ratings for internal I/O options.

Chapter 3 Installing the MultiLoad II/RCUII EXL

Mounting the DIV-2 Enclosure

Guidelines and suggestions for mounting the EXL enclosure on various surfaces.

Electrical Supply Connections

Instructions for connecting AC and DC power supplies, including cable gland details.

Chapter 4 Data Communications Interface

Communications Protocols and Wire Specs

Details on RS-422/485 and RS-232 protocols, including wire requirements.

Communication Connection Wiring

Wiring connections for specific communication protocols like FCM.

Host/TMS Communications

Methods for connecting host/TMS computer systems via various communication ports.

Host Ticket Printer/Data Logger Connections

Connection options for ticket printers and data loggers via RS232 or Ethernet.

Chapter 5 Connecting Field Devices to the I/O Board

Available I/O Points per Board

Quantities and electrical ratings of I/O points for Digital/Analog and 2 Meter I/O boards.

Terminal Arrangements per Board

Terminal block assignments for the Digital/Analog I/O Board (IO_DA).

How to Connect and Wire Field Devices

Examples of wiring common field devices to the I/O boards.

Flow Meter and Control Valve Wiring

Wiring diagrams for connecting flow meters and control valves.

Additive Wiring: Outputs

Diagrams for connecting additive injection outputs to the I/O board.

Additive Wiring: Inputs

Analog Wiring

4-20 mA Input Wiring

4-20 mA Output Wiring

AC Output Wiring

AC Input Wiring

DC Permissive/Status Wiring

DC Output Wiring

Chapter 6 Configurations

Switch Access Control

Details on switches that limit access to program mode and W&M parameters.

Menus and Screens

Field Modification and Data Entry

Verifying Communications

Steps to verify communication between MultiLoad II/RCU II and the I/O board.

Using I/O Diagnostics

Chapter 7 Service and Repair

Overview and Subassemblies

CPU Subassembly Removal and Replacement

Procedure for removing and replacing the CPU chassis, boards, and optional I/O board.

Display Subassembly Removal and Replacement

Procedure for removing and replacing the display module and its associated cables.

Keypad Removal and Replacement

Procedure for removing and installing the unit keypad and bezel.

Keypad Barrier Removal and Replacement

Procedures for removing and replacing keypad barrier versions 1.1 and 2.0.

Card Reader Removal and Replacement

Procedure for removing and installing the EXL Prox Card Reader.

W&M Switch Assembly Removal and Replacement

Procedure for replacing the W&M switch assembly.

Chapter 8 Hardware Revision History & Compatibility

Chapter 9 Revision History

Hardware Revision

Manual Revision