RS-interface
Deutschmann Automation GmbH & Co. KG
13
UNIGATE
®
fieldbus gateway UNIGATE
®
CL - PROFINET 2Port V. 1.6
15.8.14
5
RS-interface
5.1 RS-interfaces at the UNIGATE
®
CL
The UNIGATE
®
CL - PROFINET-IO has the interfaces RS232, RS422 and RS485 available. The
hardware always features a DEBUG-interface, see chapter 7.
5.2 Buffer sizes at the UNIGATE
®
CL
UNIGATE
®
CL features at the serial side a buffer with the size of 1024 bytes for input data and
output data each.
The FIFO of the application interface (RS-interface) can be changed in any Gateway form Script
revision 26 on, that is capable for Script. For it please check in the PROTOCOL DEVELOPER
under "Device Control" - "Hardware".
5.3 Framing Check
The length of the stop bit received by the Gateway is checked through the function "Framing
Check". Here the stop bit generated by the Gateway is always long enough, so that connected
participants can evaluate the stop bit.
Please be aware that the function "Framing Check" becomes effective only in case of 8 data bit
and the setting "No parity".
An error is detected and indicated by the Error LEDs in case the stop bit does not show the
length 1 bit during the activated check.
The possible setting for this parameter can be controlled by the Script (see online help from
PROTOCOL DEVELOPER). The presetting for the "Stop Bit Framing Check" is "enabled".
