ProSoft Technology MVI56-101S - Manual (Page 50)

Configuring the MVI56-101S Module MVI56-101S ♦ ControlLogix Platform
User Manual IEC 60870-5-101 Slave Communication Module
Page 50 of 193 ProSoft Technology, Inc.
August 2, 2011
2.3.35 Receive Timeout
0 to 65535 milliseconds
This parameter specifies the minimum number of milliseconds to wait after the
first byte of a frame is received before a timeout condition is set. Be careful not to
set this parameter too small. If the timeout condition is set, all bytes in the frame
received will be discarded.
2.3.36 Hardware Handshaking
N ONE , RTS/CTS, DTR/DSR, M ODEM
Selects the hardware handshaking type. RTS/CTS, DTR/DSR and M ODEM
options are most commonly used for older telephone line modems. RTS/CTS
and DTR/DSR are also commonly used with leased-line data modems. The
M
ODEM option is also commonly used with dial-up modems. When the messages
must go out if the modem is not connected, the module will assert the DTR line
which will cause the modem to dial the number in the modem’s configuration.
The module does not have the functionality to dial the number to be called for the
modem. The module reconnects after 30 seconds of inactivity.