Serial Interface; Advanced Options; Dedicated Line - Siemens SIMATIC TeleControl DNP3 Configuration Manual

3.6

Serial interface

3.6.1

Advanced options

3.6.1.1

Dedicated line

Settings dedicated line
Settings serial interface
● Interface standard
Standard of the serial interface: RS232 / RS485
Select the following value:
– RS232
– RS485
● RS-485 termination
Enable this option when connecting a terminating resistor for the RS-485 bus when a
star-shaped network is connected.
● Operating mode
Only configurable with: TIM 3V-IE DNP3 / TIM 4R-IE DNP3
The operating mode of the interface specifies the mode of the data transfer. Range of
values:
– Interrupt (block) - for the send and receive direction
– DMA - for the send and receive direction.
– Interrupt (individual characters) - only for the receive direction
A maximum of one of two serial interfaces of a module may be operated in DMA mode.
Max. number of spontaneous frames
Only configurable with: TIM 3V-IE DNP3 / TIM 4R-IE DNP3
Configuration - DNP3
Configuration Manual, 11/2018, C79000-G8976-C508-01
When a modem with an RS-232 interface is connected to the interface of the TIM
When a modem with an RS-485 interface is connected
With parallel connection of several modems to the interface of the TIM (star-shaped
network)
Configuration
3.6 Serial interface
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