CHAPTER 4: SYSTEM ADMINISTRATION
SYSTEM ADMINISTRATION
MULTINET4 MULTI-PORT SERIAL SERVER & MANAGED SWITCH – INSTRUCTION MANUAL
4–87
FIGURE 4–51: Serial: Modbus: Remote Slaves
This screen is used to add a mapping between a Modbus device address and the IP
address of a remote Modbus/TCP server. The table below specifies the parameters you can
view and edit in the Serial: Modbus: Remote Slaves screen.
Table 4–52: Modbus: Remote Slaves
Field Name
Field Value
Device Address:
Modbus/TCP unit identifier assigned to the remote device.
Valid range = 1-247
Remote IP Address:
The IP address of the remote Modbus/TCP server.
Idle Time (secs):
The TCP connection for this device is torn down if the idle time
(time between messages) exceeds the value specified here. This
parameter allows multiple successive requests to the same
remote device to re-use a single TCP connection, thereby
reducing latency. As a special case, if this value is set to 0, a TCP
connection is immediately made to the remote (that is, the
client does not wait for a request) and it is always kept open.
This special mode eliminates the connection latency associated
with the initial Modbus request.
Response Time
(msecs):
The client will wait this amount of time before giving up on a
request. If the client times out, it closes down the current TCP
connection for the remote device.
Delete:
Set the Delete checkbox in a row in the Existing Devices table
and click
Apply Settings
to delete that remote slave.
