Continuous gas analyzers integrated analyzer system measurement made easy (362 pages)
Summary of Contents for ABB AnalyzeIT ZMT Series
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Analyze Supplementary Operating Instructions – Serial Data Communications Zirconia Oxygen Analyzer Systems IM/ZMT–SER_2 ZMT Series...
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CONTENTS Section Page INTRODUCTION ............2 PREPARATION ............2 Company Standard Settings ......2 INSTALLATION ............3 Serial Communication Adaptors for Personal Computers ........3 3.1.1 Configuration .......... 3 ELECTRICAL CONNECTIONS ........3 Serial Connections ..........3 4.1.1 Cabling ............ 3 SETTING UP ..............
2 PREPARATION 1 INTRODUCTION The ZMT Series of oxygen analyzers is extended by the The procedure is similar to that described in the Operating addition of a serial data communication option which allows Instructions (IM/ZMT) with additions as detailed in this section. addressing and reprogramming via a computer terminal or host computer.
3 INSTALLATION 4 ELECTRICAL CONNECTIONS 3.1 Serial Communication connections, apart from those serial data Adaptors for Personal Computers communication, are made as shown in Figs. 5.4 and 5.5 of the An RS422/485 communications adaptor board is required for Operating Instructions (IM/ZMT). serial links.
This is the recommended protocol for use with despatched with a transmission rate of 9600 baud and such as ABB Kent-Taylor PC30. The supervisory systems transmission line termination resistors linked-out. If these Protocol is: settings are unsuitable, refer to Section 5.1.
7 PROGRAMMING The general programming procedure is as detailed in the Operating Instructions (IM/ZMT) but with an additional Serial Interface page – see Fig. 7.1. – – – – – – – – – – – – – – – DIAGNOSTIC CHECKS SERIAL INTERFACE CLOCK SETUP...
COMMUNICATION Communication Between Master and Slaves 8.2.1 Term Clarification for Command Format The commands from the master are coded as single Start – one ASCII control character (always ‘STX’) signifying characters as follows: the start of transmission. – ‘Read’ (read parameters) Command –...
8 COMMUNICATION… 8.3 Reply Format – Figs 8.4 to 8.6 Block Check Character (BCC) – one character, the The ZMT Analyzer replies to the command using the reply arithmetic sum of the complete message (excluding parity format shown in Figs. 8.4 to 8.6. bits), transmitted by the analyzer for error detection –...
…8 COMMUNICATION Communication Examples The following examples show typical master-to-slave transmissions and the subsequent slave-to-master replies. For Error Code interpretations refer to Sections 8.6 and 8.7. Parameter a) Command – STX R 06 O2 ETX b Command – STX M 06 M1 ETX c) Command –...
…8 COMMUNICATION Information. In the following Sections: • All parameters can be 'Read'. • Some parameters can be written to ('Write' Command) – see Sections 8.7.1. • Some parameters can be read as a group ('Multiple' Read) – see Section 8.7.2. 8.7.1 General Mnemonics l l e l l e...
OPERATION 10 SPECIFICATION Before attempting any serial communication, first ensure that As detailed in the Operating Instructions (IM/ZMT), with the the ZMT Analyzers connected to the computer terminal or host following additions: computer by serial link are functioning correctly as individual instruments.
APPENDICES A1 The American Standard Code for Information Interchange (ASCII) Character Significance Decimal Hex. Binary Null, Operation 0000000 Start of Heading 0000001 Start of Text 0000010 End of Text 0000011 End of Transmission 0000100 Enquiry 0000101 Acknowledgement 0000110 Bell 0000111 Backspace 0001000 Horizontal Tabulation...
APPENDICES… A2 Non-volatile Memory Limitations Note. A non-volatile memory is used to store any parameter changes made via the serial link to ensure that the information is retained during mains interruption or power-down. The memory used is rated at 10 write cycles per register and each register is assigned a particular parameter, e.g.
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