Connecting To The Waters 746 Data Module - Waters Prep Series Installation And Maintenance Manual

2. Stop your chromatographic run (if necessary).
3. Press the On/Off switch on the controller's front panel to shut down the
system.
4. Shut down the other IEEE-488 devices.

Connecting to the Waters 746 data module

You can use the RS-232 interface to connect the controller to a Waters 746
Data Module. The interface transmits this data using:
• Control commands from the data module to the controller
• Commands and report information from the controller to the data
module
The interface transmits no chromatographic data.
Tip:
Connecting the RS-232
To connect the RS-232:
1. Connect the 25-pin connector (provided with the data module) to the
rear panel of the data module.
RS-232 connections with a Waters 746 data module
25-Pin
connector
746
data module
2. Connect the other end of the cable to the RS-232 telephone jack
connector on the controller's rear panel.
When connecting the 746 Data Module to the controller, you must
Tip:
also attach a cable from the Inject terminal to the 746 to coordinate the
run start signals of the two systems.
2-20 Installing the System
RS-232 cable
Run start signal
from inject terminal
Telephone
connector
PrepLC
controller
(as PowerLine
controller)