Cypress Chameleon CTM-130 Bedienungsanleitung PDF herunterladen (Seite 8)

8 4BMODBUS Command Reference

When the MODBUS slave gateway is enabled, the gateway will look at its MODBUS slave list to handle all

MODBUS functions and traffic. This MODBUS gateway is able to function as:

• MODBUS TCP slave gateway

• MODBUS Serial slave gateway

• Self MODBUS device (one only allowed)

The MODBUS slave gateway will be using the default port of 502.

To add a MODBUS slave device entry to the MODBUS list. One entry is added at a time with a limit of up

to 247 entries (each entry requires a unique ID). MODBUS TCP slaves, serial slaves and self slave can be

added to the list. For the MODBUS self slave, the entry on the MODBUS list will be “Localhost, id”.

modbusadd (query MODBUS slave gateway list)

To display all the entries in the MODBUS list. Read only.

Example:

cmd modbusadd displays the MODBUS list

(192.168.1.20,247) TCP slave device with ID = 247

(Localhost,10) self slave device with ID = 10

(19200.N.8.1 A,155) serial slave device (baud 19200, no parity, 8 data, 1 stop, ASCII, no flow control)

with ID = 155

modbusadd id nnn.nnn.nnn.nnn (add a MODBUS TCP slave)

id = 1 to 247 MODBUS ID

nnn.nnn.nnn.nnn = 1.0.0.0 to 255.255.255.255 MODBUS slave IP address

modbusadd id Serial m (add a MODBUS serial slave)

Adds a MODBUS Serial Slave

id = 1 to 247 MODBUS ID

m = a or A ASCII transmission mode

m = r or R RTU transmission mode

Notes:

• The MODBUS slave gateway will use the serial port settings configured using the port command

for all serial slaves.

• For MODBUS RTU configuration to function properly d = 8 must be entered for the port

command. (This configuration is in accordance with the MODBUS specification)

• modbusadd will return “Invalid IP address (Sx)” followed by an “OK” if modbusadd is configured

with parameters missing or incorrect parameters. Ensure that the modbussadd parameters

match those from the above list.

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Cypress Chameleon CTM-130 Bedienungsanleitung Seite 8