Serial Port Settings - Planar GX40 User Manual

3.7 Serial Port Settings

This applies only if you use
If you wish to control GX40s remotely with RS232 com-
mands from a computer, read this section. Otherwise, skip
it.
GX40s can be linked together for RS232 using straight-
through 8-conductor cable with RJ-45 connectors. This is
the common type of LAN connection cable, not null-
modem, sometimes call Cat-5 cable. For more information,
see "Connecting RS232 Communication" on page 15.
RS232 is also used to upgrade the firmware of the unit.
RS232 IDs
Each unit in the loop must have a unique RS232 ID. Open
the Serial Port Settings menu for each unit.
To access the Serial Port Settings menu, on the remote,
press four times.
MISC
S e r i a l P o r t S e t t i ng s
G r ou p I D
Un it I D
ASC II R esp o n se Typ e
AS C II R esp o n se Ter m i na to r
Ba ud R at e
In the Serial Port Settings menu, you specify an ID that
is unique for each GX40 in this RS232 loop.
The ID is in two parts, Group ID and Unit ID. Each of
these has a range of 0–9, A–Z. This range results in 1296
possible addresses.
You can group the GX40s by using the same letter or
number of the Group ID, such as 8. In this way you can
address the group as 8*, and all the GX40s in the string that
67
commands to control the GX40.
RS232
1
1
Symbol ic
CR
192 00
have Group ID 8 and any Unit ID will execute the com-
mand.
Addressing GX40
Part of the RS232 command will be an address. This
address may take several forms. For example, suppose we
have 8 units in one area divided into two groups. We might
set the ID s of the units like this:
Group ID
A
A
A
A
B
B
B
B
With this scheme, we have four ways to address these
GX40s:
Type of
Addresses
A3 Only the specific GX40 addressed will
B4 obey the command. Also, the GX40 will
etc. respond to the host computer.
** All GX40s in this RS232 loop will obey the
command
*4 Both the GX40s whose IDs end in "4" will
obey this command
B* All four GX40s in Group B will obey the
command
Response type and terminator
The ASCII Response Type determines what type of
data will be returned to the computer. For human readable
text in a serial program choose Symbolic. For computer-
read data you can use Numeric or Data Only.
Unit ID
1
2
3
4
1
2
3
4
Affect on GX40