Vetek DGT, Technical Manual

Page: 35 / 87

DGT / DGT60 / DGTQ / DGTP
35
6.4.2 PC PORT
Please find below the various selectable serial weight transmission modes of the PC serial port through the
corresponding "PCModE" StEP of the SET-UP environment.
- TRANSMISSION REQUESTED FROM AN EXTERNAL DEVICE "ondE" parameter)
In this case the indicator waits for a command before transmitting (see the section 6.5 "SERIAL COMMANDS
FORMAT").
With Baud rate at 9600, through the READ command, it is possible to make up to 10-11 requests per second,
while with Baud rate at 115200 one can arrive at 16.
The transmission works with weight <, =, > 0 with approved or unapproved instrument.
- 4 – 6 DIGIT REMOTE DISPLAY TRANSMISSION
("rEPE.4" and "rEPE.6" parameter and
FModE
>>
Func
step
not set on rEPE)
If one has selected a functioning mode different than rEPE in the
FModE >> Func step , The weight displaying
takes place both in the indicator as well as in a weight repeater of 4 or 6 digits, (normally the capacity will be
properly set up for a correct displaying).
N.B.
When either transmission mode is selected, the relative serial output is automatically set to 4800, N – 8 – 1 .
In any case itt’s possible to set it differently.
Independently from the set transmission speed one can obtain up to 6 transmissions per second.
-
TRANSMISSION WHEN THE PRINT KEY IS PRESSED ("Prin.Std", "PrinEX" parameter)
The instrument communicates the weight data through the serial port when the PRINT key is pressed (except for
in the TOTALIZER mode where one should press the MODE key).
For non approved instruments:
The transmission takes place if the weight is stable and the net weight is > 0.
Reenabling the transmission depends on how the "rEACt" step has been set in the SET-UP environment
(passing by zero of the NET weight, weight instability or always).
For approved instruments:
The transmission takes place if the weight is stable and the net weight is > 20 divisions.
Reenabling the transmission depends on how the "rEACt" step has been set in the SET-UP environment
(passing by zero of the NET weight, weight instability or always).
NOTES
:
-
In the TOTALISER functioning mode, the transmission on the PC port takes place upon the pressing of the
MODE key.
-
The data is transmitted using the standard string (Prin.St) or the extended string (or multiscale string in the
TRANSM mode) (PrinEX); see the paragraph 6.6 for the description of the 3 strings.
-
The transmission is confirmed by the the indication of "trAnSM" on the display.
-
TRANSMISSION IN RS 485 SERIAL MODE ("485" parameter)
The protocol is the same as the transmission upon request (ondE parameter), except that the instrument
responds only if its machine code is the one requested (before the request the machine code must be put, I.E.
00READ<CRLF>).
If a broadcast address command (99) is received no answer is given. If the command is correct it is executed
anyways.
Note
: In case of a MASTER/SLAVE connection, connect the SLAVE indicator to the PC and configure “ALL:STD”
parameter (
SEtuP >> SEriAL >> CoM.PC >> PCModE )