Funk-Electronic Piciorgros GmbH
TGW-100/TGW-100R
V2.71 - Page 48 of 59
4
Protocols
4.1
Layer one Protocols between TGW-100 and the external device,
connected via serial interface
4.1.1
Timeout Protocol
Using the “Timeout Protocol”, the TGW-100 will accept any data received via its serial
interface(s) accepting the whole character range from hex 00 to hex FF. The “Data End”
criteria in that case are just the facts, that there is no more data received over a
predefined period of time. (Factory default is set to 10 ms for 9600 bps. That reflects 10
characters in sequence).
Basically if used other baud rates, a timeout period of 10 character-times is suggested.
Using the COM interface, a timeout period between 3-1000 ms, using the AUX
interface 10-1000 ms is programmable.
4.1.2
3964R Protocol
The 3964R often is used in the „Siemens World“, connecting PLC’s to PLS’s or PLS’s
to SCADA systems. That “Layer One” protocol is fully supported by the TGW-100.
If possible, the priority settings of the device connected to the TGW-100 should be set
to “low priority”.
Character delay and handshaking can be set up using the TGW’s embedded Web Server
Settings for the Serial Port(s)
