Before You Start - London Electronics EasyReader ER4S Instruction Manual

Before you start ...

First, please check that the display will suit all the requirements of your application. Page 4 has
some important warnings - please check that all warnings are covered.
Next, set the switches on the back of the display to suit the data type you'll be using. See page 6.
Remove the rear screws and slide the case apart. Connect the signal and power cables to the
appropriate screw terminal connectors. See page 6 to check that you are using the correct terminals.
Apply power, and confirm that the meter illuminates all segments for a few seconds and then
shows the software version "SEr. 1.X" briefly (The X numeral depends on version).
The lockout should be OFF to allow you to change the meter's settings - see connections page.
Set baud rate, address, parity etc. to suit your system. Now, if you send an ASCII character of the
correct baud rate, the meter should respond.
With the lockout OFF, the meter will respond immediately to each valid character received, useful
for initial diagnostics. However, to operate properly, and to safeguard your settings you must set
the lockout to ON - see connections page.
Useful free accessory
The free TERMINAL accessory in Windows is a simple and useful application you can use to
generate serial data.
It can be used to check most features of the S1861
Here's how to connect your display to a PC's RS232 port...
For guidance on how to set up TERMINAL, see our dedicated website help pages
http://www.london-electronics.com/terminal.htm
Input Connector
1 2 3 4 5
6 7 8 9
4
Interior view of a 9 pin D
connector, which you can
connect to a COM port
connector on your PC.