Thermo Ramsey Micro-Tech 3000 Series Bedienungsanleitung

Serial Communications Manual

Ramsey

Micro-Tech3000

Model 3104

Loss in Weight Controller

Serial Comm-

3104 Rev

Part No.: XXXXX

Ramsey

Micro-Tech



3000

Serial Communications

Model 3104

Loss in Weight Controller

This document is confidential and is the property of Thermo Electron. It may not be

copied or reproduced in any way without the express written consent of Thermo

Electron. This document also is an unpublished work of Thermo Electron. Thermo

Electron intends to, and is maintaining the work as confidential information. Thermo

Electron also may seek to protect this work as an unpublished copyright. In the event

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expressly authorized by Thermo Electron.

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owners.

Thermo Electron,

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Tel (763) 783-2500

Fax (763) 783-2525

http://www.thermoelectron.com

eng@thermoelectron.com

2003 Thermo Electron

Revision History

Preliminary December 2003 Manual first released

Serial Communications 3104

REC XXXXX i

Table of Contents

Table of Contents ......................................................................................................................i

List of Figures ..........................................................................................................................iii

List of Tables ...........................................................................................................................iv

Chapter 1 Introduction ..................................................................................................... 1-1

1.1 General................................................................................................................... 1-1

1.2 Communication Protocols...................................................................................... 1-1

1.2.1 Protocol Rules ................................................................................................ 1-2

1.3 Printer..................................................................................................................... 1-3

1.4 Thermo Electron Warranty..................................................................................... 1-3

Disclaimer.......................................................................................................................... 1-4

Chapter 2 Installation....................................................................................................... 2-1

2.1 General................................................................................................................... 2-1

2.2 Comm A Board (Option) Installation...................................................................... 2-1

2.3 Communication Configuration (Mother Board) COMM1 ....................................... 2-6

Chapter 3 Operation ........................................................................................................ 3-1

3.1 General................................................................................................................... 3-1

3.2 Printer Scroll........................................................................................................... 3-1

3.3 Print Formats.......................................................................................................... 3-1

3.3.1 Totals .............................................................................................................. 3-2

3.3.2 Batch ............................................................................................................... 3-2

3.3.3 Alarms ............................................................................................................. 3-3

3.3.4 Audit Trails ...................................................................................................... 3-3

3.4 Communication Set-Up.......................................................................................... 3-3

3.4.1 Clock/Calendar Set-Up................................................................................... 3-4

3.4.2 COMM A and Print Scroll Set-Up ................................................................... 3-5

3.4.3 Multidrop Operator Set-Up ............................................................................. 3-7

3.4.4 Printer Set-Up ................................................................................................. 3-8

3.4.5 Define Printing Format.................................................................................. 3-10

3.5 Communication Protocols.................................................................................... 3-14

3.5.1 Registers Definition....................................................................................... 3-15

3.5.2 Type, Limits and Format of Register ............................................................ 3-16

3.5.3 Decription of Register ...................................................................................3-17

3.6 PC-Master Protocol.............................................................................................. 3-25

3.6.1 Description .................................................................................................... 3-25

3.7 Siemens 3964R.................................................................................................... 3-28

3.7.1 Write Register ............................................................................................... 3-28

3.7.2 Read Register ............................................................................................... 3-29

3.8 Modbus................................................................................................................. 3-30

3.8.1 Read Register ............................................................................................... 3-30

3.9 Allen Bradley DF1 (PLC-5) .................................................................................. 3-32

Serial Communications 3104

REC XXXXXii

3.9.1 Read Registers ............................................................................................. 3-32

3.9.2 Write Registers ............................................................................................. 3-33

3.10 Register Mapping ............................................................................................. 3-35

Chapter 4 Maintenance ................................................................................................... 4-1

4.1 General................................................................................................................... 4-1

Chapter 5 Parts................................................................................................................ 5-1

5.1 General................................................................................................................... 5-1

Serial Communications 3104

REC XXXXX iii

List of Figures

Figure 2-1 COMM A Board 2-2

Figure 2-2 Micro-Tech 3000 Mother Board 2-3

Figure 2-3 Serial Connection RS232 2-4

Figure 2-4 Serial Connection RS485 2-5

Figure 2-5 Mother Board Area of Detail 2-8

Serial Communications 3104

REC XXXXXiv

List of Tables

Table 2-1: COMM A Board Jumpers 2-1

Table 2-2: Mother Board COMM1 Communications Wiring Config. TB3–RS485 2-6

Table 2-3: Mother Board Wiring Configuration TB3-RS232 Communications 2-6

Table 2-4: Mother Board Wiring Configuration TB3-20mA Serial Communications 2-7

Table 2-5: Mother Board Communication Jumper Setting 2-7

Serial Communications 3104

REC XXXXX 1-1

Chapter 1 Introduction

1.1 General

The Micro-Tech 3104 is a bus-based microprocessor instrument equipped with one

COMM A (on Mother Board) that can be equipped (optionally) with a second serial

communication boards. Each COMM A board has one serial channel that can be

configured according to the following standards.

!RS423/RS232C For point to point asynchronous bidirectional

communications, maximum 50 feet (15 m). Modem

capability.

!RS485/RS422 For point to point or multidrop 4 wire bidirectional

communications, maximum 4000 feet (1200 m).

!Current Loop For high immunity bidirectional asynchronous

communications. Passive only.

All of the above are optically isolated.

COMM A board (Optionally) can be installed in any available mother board expansion

slot. After installing the board and power has been restored, the instrument

automatically detects the new board and adds the communication set-up scrolls to

the Main Menu scrolls. The Micro-Tech refers to the COMM A on the Mother Board

as COM 1, and the COMM A board (if installed) as COM 2.

If two COMM A are availables; one can be set up for printing, the other one for

transferring data to and from other intelligent devices such as computers and PLC's.

The system cannot support two printers or two COMM lines.

Each COMM A contains a perpetual clock/calendar circuit with battery backup. The

battery is located on the mother board and is the same battery used for system

memory backup. The system automatically detects and uses the clock calendar

circuit of the first board and ignores the second.

Time and date set-up screens become visible after the COMM board is installed.

The Micro-Tech 3000 Integrator COMM meets the year 2000 requirements.

1.2 Communication Protocols

When a COMM line is set up for communication (not for a printer), the system is able

to send and receive data to and from another device connected to the COMM line.

The COMM option comes with the following software communication protocols

already built in:

- PC-Master A Thermo Ramsey proprietary protocol, multidrop.

- Modbus An AEG proprietary protocol, multidrop. The COMM option only

contains a subset of the protocol as specified in this manual.

- Allen-Bradley A proprietary protocol, multidrop. The COMM option only contains

a subset of the protocol in the PLC-5 version of it, as specified in

this manual.

- 3964R A Siemens proprietary protocol, single point.

Serial Communications 3104

REC XXXXX1-2

The hardware can be configured (through jumpers on the Mother Board and on the

optinally COMM board if available) to one of the three standards as listed in the

previous paragraph. However, only the RS485/RS422 standard allows multidrop

communications, RS232C and Current Loop can only be used in point to point mode.

This does not prevent the use of a protocol; it only prevents physically connecting the

Micro-Tech 3000 to more than one device.

CAUTION

The communication protocols have been implemented and tested as

described in this document or in other referenced documents. It is

the intention of Thermo Ramsey to provide all the necessary

information and help the user to connect the instrument to other

compatible devices. However, because most of the protocols are

specific to other manufacturers, Thermo Ramsey declines any

responsibility for any malfunction that may occur when connecting

the instrument to devices of other manufacturers, unless tested and

approved by Thermo Ramsey.

1.2.1 Protocol Rules

The communication protocol allows a remote intelligent device to read and

eventually write information from and to the Micro-Tech 3104. For

convenience, the information is organized in a set of registers as listed in this

document.

During the communication activity, the Micro-Tech 3104 always acts as Slave,

meaning it responds to a request from a Master device on the line, but never

attempts to send messages out.

The following rules apply:

a. The Micro-Tech 3104 responds only if the message is completely

received.

b. The Micro-Tech 3104 reads the message and looks for the address,

which is contained into an address byte in the query package. The

message is then processed only if the address matches the one specified

in the set-up data of the Micro-Tech 3104, otherwise it is ignored.

c. When the system receives a message, the integrity of the message is

checked. An answer-back message is prepared if the message is

formally correct.

d. When a message containing a variable to be written in memory is

received, the system checks the correctness of the message and, if it is

correct, immediately sends the answer-back message. This does not

always mean the data is written in memory. The system first checks the

then the minimum and maximum limits, and then the password. If data

can be accepted, it is stored in memory and the success flag is set to 0

(no error). If not, it is set to 1. To know if the last variables sent have

been stored, the Master checks (reads) the success flag contained in a

read only register.

The following procedure applies:

- The Host sends data to the Micro-Tech 3104.

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