User manual

set ia
Chapter 2 Command Descriptions 125
Options for configuring network-based masters (set ia master)
master=range
Specifies the index of the network master to which the master options
apply.
state={on|off}
Enables the IA network master settings.
active={on|off}
Enables or disables the network listener that accepts network
connections.
type={tcp|udp}
Defines whether the incoming connection is TCP (connected) or UDP
(unconnected). The default is “tcp.”
For cellular connections, using UDP/IP can cut 40% to 60% from your
monthly bill.
ipport=ip port
Defines the UDP or TCP port on which to listen for protocol messages.
Modbus/TCP defaults to TCP port 502.
table=1..8
Defines which table is used to route messages to their destination. This
option applies only to master-attached devices.
protocol={modbusrtu|modbusascii|modbustcp}
The protocol used for the connection.
modbusrtu
Modbus/RTU – 8-bit binary per www.modbus-ida.org specification.
modbusascii
Modbus/ASCII – 7-bit ASCII per www.modbus-ida.org specification.
modbustcp
Modbus/TCP – or “Open Modbus” per www.modbus-ida.org
specification. Can be enabled with UDP/IP as well as TCP/IP.
messagetimeout=100-99000 ms
When messages are received from remote clients, this is the time to allow
the message to wait to be answered. This includes both the queuing and
slave response delays, and this should be set to slightly less than the
timeout of the remote client. After this time, the Digi device assumes the
remote client no longer wants a response. The range is 100 to 99000
milliseconds. The default is 2500 milliseconds.
chartimeout=3-99000 ms
After a first byte is received, this is the time to wait for additional bytes to
either consider the message complete or to be aborted. The default is
protocol-specific, but usually 50 milliseconds.