semaphore TBOX LT2-530 Series, User Manual, Page: 57 / 197

Version : 1.09 57
8.2.1. Communication ports tabs
According to the type of communication port (RS232. RS485, modem or Ethernet), different tabs are
available:
Parameters: general parameters (local or modem, Baudrate, Protocol).
DCV: Digital Communication Variables. Special variables with a pre-defined function
(communication error, modem online, …). (see chapter 8.3)
ACV: Analog Communication Variables. Special variables with a pre-defined function (time-
out, user ID, …). (see chapter 8.3)
Advanced: mainly ‘timing’ parameters required when CPU is ‘Master’ or ‘Slave’ in a ModBus
communication.
TCP/IP: TCP IP configuration dedicated to the communication port, when available. .
To enter the configuration of the communication port, double click the port in ‘Group 0’.
8.2.2. Serial ports
Baudrate: 200…115200 bps
Data bits: 7 or 8
Parity: None, Odd, Even, Space,
Mark
Stop bits: 0, 1 or 2
Protocol:
ModBus (RTU/ASCII),
Printer, NMEA, PPP, SLIP
Example with COM1 – RS232