Performing Ieee-488 Powerup Sequence - Waters 600E Installation And Maintenance Manual

Setting Waters 486 and 490E IEEE-488 Addresses
If you are connecting a Waters 486 and 490E detector to a PowerLine Controller, the
address of the 486 must be lower than that of the 490E.

3.3.4 Performing IEEE-488 Powerup Sequence

This section describes:
• Powerup sequence for IEEE-488 devices
• Powerdown sequence for IEEE-488 devices
Powerup Sequence for IEEE-488 Devices
This section describes the proper IEEE-488 device powerup sequence when using the:
• 600E System with a data system
• 600 Controller as a PowerLine Controller
You must perform the steps in the following procedures in the exact order presented to
ensure proper operation of your system (data system-based or PowerLine-system based).
Attention: If you do not perform the steps in proper sequence, the data system or
STOP
PowerLine Controller may not recognize the other devices on the IEEE-488 interface.
For additional 600E system powerup and powerdown information, refer to the Waters
600E Multisolvent Delivery System User's Guide, Chapter 3, Preparing Your System for
Operation.
Data System Powerup Sequence
Perform the following powerup sequence when using the 600E system with a data system:
Note: Power up all devices connected to your data system before you power up the
computer. As you power up each component, wait a brief period to allow its internal
diagnostic tests to run. These tests ensure that each module is functional, and serve to
quickly isolate a failure.
1. Power up all equipment not controlled by the data system.
2. Power up all equipment controlled by the data system that is not under direct
IEEE-488 control.
3. Power up the 600E pump to establish eluent flow. Then power up all other
equipment controlled through the IEEE-488 bus.
38 Making Electrical Connections to the 600 Controller