CONTENTS
Section
1
INTRODUCTION ......................................................... 1
2
2.1
2.2
2.3
2.4
2.5
2.6
3
3.1
4
4.1
4.1.1
Limitations ........................................... 8
4.2
5
5.1
5.1.1
5.1.2
5.2
5.2.1
5.2.2
5.3
5.3.1
5.3.2
5.4
5.4.1
5.4.2
5.5
5.5.1
5.5.2
5.6
5.6.1
5.6.2
6
6.1
Examples ....................................................... 13
7
7.1
.......................................................... 14
7.2
7.3
7.4
Set Points ....................................................... 18
7.5
7.6
7.7
7.8
7.9
1 INTRODUCTION
Page
Information.
• The COMMANDER 1900 Series is extended by the
addition of a serial data communication option
designed for use with SCADA systems.
• RS422/485 Communication standard.
• Modbus RTU protocol - for master (host computer)
to slave (COMMANDER 1900) system.
• Isolated (500V) from rest of instrument.
• 3 and 5 Wire communication supported.
• Baud rate - from 1200 to 9600.
• Parity-checking - of message available.
1