EDI ED400D-E-111-4D-N4-SR1 User manual

PRODUCT MANUAL
ELECTRONIC DISPLAYS INC.
135 S. CHURCH STREET
ADDISON, ILL. 60101
www.electronicdisplays.com
ED400D-E – 111 - 4D – N4-SR1: 4.0 IN. HIGH DIGITS
DESCRIPTION :
•4 digit, alpha/numeric display; 4 inch high characters.
•Serial input (RS232) via a PC/PLC ; 1200BPS
•Standard ASCII text is used for communication.
•Terminal block inside right endplate to wire PC/PLC input.
•NEMA 4 enclosure.
OPERATION :
This model is designed to receive a serial input via a PC/PLC (RS232). A terminal
block inside the right endplate can be used to wire the serial data wires. Two-wire
transmission is needed. It is recommended that a PVC jacket with a shield be used.
Standard ASCII protocol is used to communicate with the display; Baud rate @
1200BPS; NO PARITY; 8 DATA BITS; 1 OR 2 STOP BITS. See Appendix E for
protocol information.
If there are any questions or comments regarding this order, please call our Toll-free
number : 1 - 800 - 367 - 6056

PRODUCT MANUAL
Unpacking Instructions:
A copy of these instructions is packed with each unit. Open carefully to avoid scratching the unit’s
paint and plastic lens or cutting the line cord.
Mechanical Mounting Instructions:
This unit is equipped with two brackets attached to the back of the display for mechanical
mounting purposes. The unit is designed to be mounted to a wall.
Power Requirements:
This unit is equipped with a standard, eighteen-gauge, three-wire line cord that is designed to be
plugged into a standard, 120 VAC, 60 Hertz, grounded outlet. The maximum current draw for this
unit (at 120 VAC) is __1.3__ Amperes.
Power-up Response:
UPON POWER UP, THE UNIT WILL DISPLAY will scroll an power up diagnostic message. a
= ‘XX’ b = ‘YY’ p = 2; where ‘XX’ is the address of the display, ‘YY’ is the baud rate of the
display (Factory set to 1200), and p is the 2 digit addressing protocol.
See Dip Switch Settings for changing baud rate and address.
Dip Switch Settings:
This program selects display address, baud rate, type of display hardware, and
message protocol based on DIP switch settings. Figure 1 shows the general
layout of the 1700-259 CPU board on the back of the display and identifies the
‘ADDRESS’ switch and the ‘FUNCTION’ switch. The following pages detail the
purpose of each of these switches.
Figure 1
“FUNCTION” Switch:
“FUNCTION” DIP switches one, two, and three are used to specify the type of
display board that is being used. These switches were set at the factory and
should not be changed in the field.

PRODUCT MANUAL
“FUNCTION” DIP switches four and five are used to specify the baud rate of the
serial input. The options are shown in Table 1 below.
‘FUNCTION’ DIP SWITCH
SW5 SW4
BAUD RATE
OFF OFF 1200
OFF ON 2400
ON OFF 4800
ON ON 9600
Table 1
“FUNCTION” DIP switches seven and eight are not used an should be left in the
‘OFF’ position.
“FUNCTION” DIP switch number six determines whether this display is to be
used for ‘normal’ serial messages or as the output display for Electronic Displays
Analog-to-Digital converter. If “FUNCTION” DIP switch number six is in the OFF
position, the “ADDRESS” DIP switch specifies the display address as shown in
Tables 2 and 3 below. If “FUNCTION” DIP switch number six is in the ON
position, the “ADDRESS” DIP switch specifies what digits to display as shown in
the section entitled ““ADDRESS” Switch for Analog-to-Digital converter
Displays:” below.
“ADDRESS” Switch for Serial Input Displays:
“FUNCTION” DIP switch number six must be in the ‘OFF’ position (see above).
The “ADDRESS” DIP switches are used in binary fashion to generate an address
number. If the address number is zero (all switches in the ‘OFF’ position) or if
the address number is larger than 198, the display uses non-addressable ‘flex’
protocol. If the address number is from 1 to 99 (see samples in Table 2 below),
the display uses 2-digit addressable ‘flex’ protocol. If the address number is from
100 to 198 (see samples in Table 3 on the next page), the display uses 2-digit
addressable protocol.
‘ADDRESS’ DIP SWITCHES
SW8 SW7 SW6 SW5 SW4 SW3 SW2 SW1
ADDRESS
OFF OFF OFF OFF OFF OFF OFF ON 01
OFF OFF OFF OFF OFF OFF ON OFF 02
OFF OFF OFF OFF OFF OFF ON ON 03
OFF OFF OFF OFF OFF ON OFF OFF 04
OFF OFF OFF OFF OFF ON OFF ON 05
OFF OFF OFF OFF ON ON ON ON 15
OFF OFF OFF ON OFF OFF OFF OFF 16
OFF OFF OFF ON OFF OFF OFF ON 17
OFF OFF OFF ON ON ON ON ON 31
OFF OFF ON OFF OFF OFF OFF OFF 32

PRODUCT MANUAL
OFF OFF ON ON ON ON ON ON 63
OFF ON OFF OFF OFF OFF OFF OFF 64
OFF ON ON OFF OFF OFF ON OFF 98
OFF ON ON OFF OFF OFF ON ON 99
Table 1
Label Definitions:
The following page shows some commonly used labels and their definitions. Not all of these
labels will be found in your unit.
LABEL DEFINITION
DATA Receive serial input (RS232) from PC/PLC.
GND Ground reference for RS232 serial input.
L 120VAC LINE IN
.
N 120VAC NEUTRAL
Service:
There are no parts in your unit classified as ‘user serviceable’ parts. The plastic or glass cover
can be cleaned using a soft cloth and a gentle glass cleaning solution.
Warranty:
The standard warranty for all products is one year on all parts and labor at our facilities. All
products are designed and manufactured by Electronic Displays Inc. If you need assistance,
please call or FAX us and we will be happy to provide technical assistance. If you feel that your
unit needs repair, please call us first and then ship the unit to:
Electronic Displays Inc.

PRODUCT MANUAL
PROTOCOL FOR NUMERIC DISPLAYS
ASCII
CODE
VALUE
(Decimal)
FUNCTION
STX 2 ‘Start of text’, also known as a ‘control B’, this
character must be the first character of each message
AD1
AD2
48-57
48-57
These two ASCII decimal digits represent the address
of the display as set on the display. See appendix C
for address setting information
DATA 48-57
Numeric value to be displayed in ASCII decimal digits.
It is also permissible to include space characters
(character value 32 decimal), minus sign characters
(character value 45 decimal), and one decimal point
character (character value 46 decimal) with the digits.
ETX 3 ‘End of text’, also known as a control C, this character
must be the last character of each message
Example:
To set the display that has an address of ‘01’ to a value
of “123456”, the following <^B>011234<^C>
NOTE: the <>’s not to be included in the message.
Or from a terminal program such as PCPLUS, Hyper-
terminal, or a TELNET screen if the display
has the Ethernet Option.
The character sequence to be sent will be:
‘Ctrl+B’ “01” “1234” ‘Ctrl+C’ (a total of eight
characters)
The leading zeros will remain blank in all cases.
135 South Church Street
Unit A
Addison, Ill. 60101
Attn: Repair department
Our telephone number is:
[phone]
Our FAX number is:
[phone]