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TABLE OF CONTENTS
1.
INTRODUCTION ....................................................................................................................................... 1
2.
HARDWARE.............................................................................................................................................. 1
2.1
Definition of Terms....................................................................................................................... 1
2.2
RS-232 Hardware ........................................................................................................................ 1
2.3
RS-485 Hardware ........................................................................................................................ 4
3.
USING THE CONFIGURATION AND COMMUNICATIONS DISKETTES............................................... 7
3.1
Pushbutton Communications Setup ............................................................................................ 7
3.2
Diskette-Driven Computer Control...............................................................................................8
4.
DEFINITIONS ............................................................................................................................................ 8
4.1
Meter Or DCE .............................................................................................................................. 8
4.2
Computer Or DTE........................................................................................................................ 8
4.3
Point-To-Point.............................................................................................................................. 8
4.4
Multipoint (Multi-Drop) ................................................................................................................. 8
4.5
Simplex ........................................................................................................................................ 8
4.6
Half Duplex .................................................................................................................................. 8
4.7
Full Duplex................................................................................................................................... 9
4.8
RS-232 (CCITT V.24) .................................................................................................................. 9
4.9
RTS.............................................................................................................................................. 9
4.10
RS-422......................................................................................................................................... 9
4.11
RS-485......................................................................................................................................... 9
4.12
ASCII............................................................................................................................................ 9
4.13
HEX ASCII ................................................................................................................................... 9
4.14
Transmission Voltage Levels..................................................................................................... 10
4.15
Recognition Character ............................................................................................................... 11
4.16
RAM ........................................................................................................................................... 11
4.17
EEPROM ................................................................................................................................... 11
5.
BAUD RATES ......................................................................................................................................... 11
6.
CHARACTER WAVEFORM.................................................................................................................... 11
7.
CLASSES OF OPERATION ................................................................................................................... 12
7.1
Point-To-Point............................................................................................................................ 12
7.1.1
Continuous Mode .................................................................................................................. 12
7.1.2
Command Mode.................................................................................................................... 12
7.2
Multipoint.................................................................................................................................... 13
7.2.1
Command Mode.................................................................................................................... 13
7.2.2
Alarm Mode ........................................................................................................................... 13
7.3
The Meter As A Remote Display ............................................................................................... 13
7.4
The Meter As A Double Tasking Remote Meter........................................................................ 14
7.4.1
Command Structure For Double Tasking.............................................................................. 14
8.
COMMAND AND RESPONSE STRUCTURE ........................................................................................ 15
8.1
Message String.......................................................................................................................... 15
8.1.1
“Data” and “Non Data”........................................................................................................... 15
8.1.2
Brackets and Spaces ............................................................................................................15
8.2
Commands and Structure.......................................................................................................... 15
8.2.1
Read Communications Configuration Command.................................................................. 15
8.2.2
General Command Structure ................................................................................................ 16
8.2.3
Command Formats................................................................................................................16
8.2.4
Command Suffix.................................................................................................................... 17
8.3
Response Structure ................................................................................................................... 22
8.3.1
No Error ................................................................................................................................. 22
8.3.2
Echo Mode (See Sections 10.19 And 11.25) ........................................................................ 22
8.3.3
No Echo Mode....................................................................................................................... 22
8.4
Data Length Corresponding To The Response Structure ......................................................... 23
8.5
Error Response.......................................................................................................................... 23
CF 125 INFINITY SC GUIDE
ii
M1519/N/0605
