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All parameters are sufficiently described on the page so that you do not need to use David's
installation or user manual to perform programming.
Programming via the web site is free of charge. No user registration is required. Your David's
settings are not stored on the web server. Instead, you can save them as a file in your computer
for future use (the file can then be imported to the page). The page does not allow you to
retrieve the current settings of your David. Any programming is only possible if a valid access
code (default = PC) is specified (the code, being a part of David's settings, is not stored on the
web server, only in your David). This makes the web access to your David both secure and
simple.
6.2. Using a PC running GDLink software
If you need to program David frequently, connecting David to a PC running specialized
software is the recommended option. GDLink software allows you not only to send programming
instructions but also to retrieve the current David settings. For the PC connection, you can use a
GD-04P link cable connected to a USB port (the cable is supplied separately). GDLink software
is available either in the GD-04P's package or on the www.jablotron.com web site.
6.3. SMS instructions
David can also be configured via SMS instructions from your mobile phone. The programming
instruction format is explained in the following example:
PC, ARX, heating on, DRX, heating off
where:
PC
is the access (programming) code, required at the start of any programming
SMS message* (2 to 8 ASCII characters, the factory default setting is PC)
,
is a comma separator
ARX
is the name of the instruction for programming the text you wish to use for
switching relay X on via SMS. The desired text ("heating on") follows, separated
by a comma.
DRX
is similar to ARX, related to switching relay X off.
The above SMS instruction tells David that the X relay can be switched on/off by the SMS
instructions "heating on" / "heating off".
Note: This text distinguishes between SMS messages and SMS instructions – an SMS message
can contain multiple SMS instructions in a sequence.
SMS instruction rules:
1.
Any programming SMS message must start with a valid access code (the factory default
code is PC). Multiple messages mean multiple codes.
2.
A single message can contain multiple instructions. David is capable of long message
processing – if enabled by your phone, you can write and send a programming SMS
message containing up to 2400 ASCII characters.
3.
The comma separator is used both between individual instructions and between individual
segments within instructions.
4.
Spaces are ignored, except in operational texts which are meant to be a part of a David
setting.
5.
The successful processing of a programming SMS is confirmed from David by the SMS
reply "PROGRAM OK".
6.
When an error is encountered, David reports a "PROGRAM ERROR" followed by the text of
the instruction which has not been recognized. Preceding instructions within the message
are carried out, succeeding instructions are ignored.
7.
David is not case sensitive (does not distinguish between lowercase and UPPERCASE
letters).
GD-04 DAVID
4
MKS51203
Normally, an A- or B- enrolled thermostat switches the heating (via the X or Y relay) so that
•
temperature comfort is maintained. However, you can put the heating in economic mode
by sending an SMS instruction for switching relay X or Y on, which puts the heating back to
normal mode. The same can be done by connecting the A or B input to GND. The thermostat
will then only provide anti-freeze protection: the heating will be switched on when a critically
low temperature is signalled (e.g. 6°C). Sending an SMS instruction for switching relay X or Y
off puts the heating back to normal mode (with A or B disconnected from GND).
If input A or B is used for thermostat enrollment, the status SMS report (obtained from David
•
on an SMS request) contains information about the temperature.
Example: STATUS:A0,B0,C0,D0,X1,Y0,GSM:70%,TA:25/24C,TB:22/22C, Vcc:12.2V
where: TA labels data from thermostat A, TB labels data from thermostat B. The data is of
the form maintained temperature / measured temperature.
Enrolling a thermostat to the A or B input disables relay X or Y enrollments.
•
•
DIP switch g setting has no effect on enrolled thermostat operation.
To delete all enrolled items, press and hold buttons XY and ABCD until two long flashes
occur on the red LED.
11.4. The GD-04P link cable
The GD-04P cable allows you to link David with a PC through an USB port and perform any
desired configuration using GDLink software. The software is supplied on a CD in the package
together
with
all
the
necessary
www.jablotron.com.
11.4.5.
Installing GDLink and the drivers
1. Connect the GD-04P cable to a free USB port on your PC and insert the CD into the CD drive.
2. Wait for "New Hardware Wizard" to start up.
3. Search for the drivers on the removable medium (CD).
4. When installing for WIN XP, ignore the notification about wrong authenticity with WIN XP and
continue with the installation process. Leave the other parameters without any modifications.
5. Finish the new hardware installation wizard process.
6. There are two devices contained in one, so please wait for the "New hardware wizard" to start
again. Repeat the procedure according to steps 3 to 5.
7. Your PC now has two new devices after successful installation - "Jablotron serial interface" as
a serial port (COM) driver and the USB device with the same name as the driver for USB.
8. Install the GDLink software on your PC.
9. Connect the GD-04P cable into David's digital bus connector. GDLink is now ready to be started.
11.4.6.
Using GDLink
The program allows for:
•
o Retrieval and modification of
David settings.
o Displaying the last 127 memorized
events.
o Relays X and Y direct control.
o Inputs A to D status display.
A
comprehensible
help
option
•
provided as a part of the program.
GD-04 DAVID
drivers.
You
can
also
download
is
9
GDLink
from
MKS51203
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