HMS Anybus Modbus-TCP/RTU Gateway User Manual page 15

Configuration
4.2.2 Modbus
Fig. 14 Modbus settings
Serial Settings (Modbus RTU/ASCII)
Transmission Mode
Slave Response
Timeout
Physical Interface
Baudrate
Character Format
Extra delay between
messages
Character delimiter
Ethernet Settings (Modbus TCP)
Port Number
Gateway Registers
Server Idle Timeout
IP Authentication
Anybus ® Modbus-TCP/RTU Gateway User Manual
RTU or ASCII
Default = 200 ms
EIA-485 (terminal), EIA-232 (terminal) or EIA-232 (D-sub)
300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600 or 115200 bps
Parity and number of stop bits
Some nodes may require extra time to finish handling a message before receiving
another. This setting adds a delay between each message.
The "silent" period to be regarded as a delimiter between one message and the
next. If set to 0 (zero) the default Modbus setting of 3.5 characters is used. The
actual time will then depend on the baud rate.
The port to use for Modbus TCP communication. Default = 502
Queries sent to the specified address offset will be handled by the internal
registers in the gateway instead of being forwarded to the Modbus RTU network.
See Internal Registers, p. 15. Default = disabled.
Idle timeout for the Modbus TCP connection. If no Modbus TCP query is received
within this time the connection will close. Default = 60 seconds.
If enabled, specifies the IP address and netmask of the device that is allowed to
connect to the gateway. Default = disabled.
13 (20)
HMSI-168-77 3.0