Lika IF50, User Manual

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IF50
Serial protocol
This register allows to select the serial protocol for the cyclic transmission.
0 : the string starts with the serial address of the unit ( Unit Number ), followed
by a space and then the value of the register to be read out. The string ends
with a “Line Feed” character and a “Carriage Return” character.
1
: the unit number is omitted and the string starts with the register value
directly. This allows a bit faster transmission because of the shorter
transmission time.
Unit Number
Serial protocol
= 0
1 1 ± X X X X X X LF CR
Serial protocol
= 1
± X X X X X X LF CR
Serial timer
This register determines the cycle time in seconds for the cyclic transmission.
E. g. when 0.100 is set, the selected register value is transmitted every 100 ms.
The accuracy of the timer is +/-500 µs.
Setting the register to 0 causes the cyclic transmission to be disabled.
Register code
It is intended to select the register to be transmitted cyclically.
If you set
00 the register code :0 is selected;
if you set 01 the register code :1 is selected; and so on.
NOTE
The communication can operate in either
PC-Mode
or
Printer Mode
.
When
PC-Mode
is enabled, the unit waits for a request string and responds
subsequently by sending the corresponding data string.
Details about this protocol can be found in the file Serial Protocol x.pdf which is
available for download from Lika Electronic website.
When
Printer Mode
is enabled, the unit sends data without any request and
according to the
Serial timer
value. As soon as the unit receives a character, it
automatically switches to PC-Mode and operates according to protocol. When
for a period of 20 sec. no character has been received, the unit switches
automatically to Printer Mode and restarts cyclic data transmission.
MAN IF50 I_E 1.0.odt 11 - Parameter settings 65 / 80