GridConnect Device Server MSS 485, User Manual

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Device Installer
Port Settings
Protocol From the drop-down menu, select the protocol type for the selected
channel.
For the NET485, this MUST be RS485 2-wire or
RS422/RS485 4-wire.
Flow Control Flow control manages data flow between devices in a network to
ensure it is processed efficiently. Too much data arriving before a
device is prepared to manage it causes lost or retransmitted data.
None is the default.
Baud Rate The unit and attached serial device, such as a modem, must agree on
a speed or baud rate to use for the serial connection. Valid baud rates
are 300, 600, 1200, 2400, 4800, 9600 (default), 19200, 38400, 57600,
115200, 230400, 460800, or 921600.
Data Bits Indicates the number of bits in a transmitted data package.
The default is
8.
Parity Checks for the parity bit. The default is None.
Stop Bits The stop bit follows the data and parity bits in serial communication. It
indicates the end of transmission. The default is
1.
Pack Control
Enable Packing Select to enable packing on the XPort.
Two firmware-selectable packing algorithms define how and when
packets are sent to the network.
The standard algorithm is optimized for applications in which the unit is
used in a local environment, allowing for very small delays for single
characters, while keeping the packet count low.
The alternate packing algorithm minimizes the packet count on the
network and is especially useful in applications in a routed Wide Area
Network (WAN). Adjusting parameters in this mode can economize the
network data stream.
Disabled by default.
Idle Gap Time Select the maximum time for inactivity. The default time is 12
milliseconds.
Match 2 Byte Sequence Use to indicate the end of a series of data to be sent as one group. The
sequence must occur sequentially to indicate end of the data collection
to the XPort. The default is
No .
Match Bytes Use to indicate the end of a series of data to be sent as one group. Set
this value to
00 if specific functions are not needed.
Send Frame Only After the detection of the byte sequence, indicates whether to send the
data frame or the entire buffer. Select Yes to send only the data frame.
The default is
No .
Send Trailing Bytes Select the number of bytes to send after the end-of-sequence
characters. The default is
None .
Flush Input Buffer (Serial to Network)
With Active Connect Select Yes to clear the input buffer with a connection that is initiated
from the device to the network. The default is No .
With Passive Connect Select Yes to clear the input buffer with a connection initiated from the
network to the device. The default is No .
At Time of Disconnect Select Yes to clear the input buffer when the network connection to or
from the device is disconnected. The default is No .
NET485 User Guide 3-13