MBSlaveUDP
Function Block - MODBUS UDP Slave protocol on ETHERNET.
Inputs
|
Input |
Data type |
Description |
|
IN |
BOOL |
Enabling command: the port is open when this input is TRUE. |
|
PORT |
DINT |
ETHERNET port number. |
|
SLV |
DINT |
MODBUS slave number. |
|
RTU |
BOOL |
Protocol: TRUE = MODBUS RTU / FALSE = Open MODBUS. |
Outputs
|
Output |
Data type |
Description |
|
Q |
BOOL |
TRUE if the port is successfully open. |
Remarks
When active, this function block manages the MODBUS UDP Slave protocol on the specified ETHERNETport. The configuration of the MODBUS Slave map (designing MODBUS addresses) is done using the MODBUS configuration tool, from the Fieldbus Configurator.
There can be several instances of the MBSlaveUDP working simultaneously on different UDP ports. Other MODBUS Slave connections (TCP server, serial) can also be active at the same time.
The slave number entered in the MODBUS Slave configuration tool is ignored when MODBUS Slave protocol is handled by this function block. Instead, the SLV input specifies the MODBUS slave number. If SLV is 0 then the default port number from the MODBUS configuration is used.
ST Language
MySlave is a declared instance of MBSlaveUDP function block.
MySlave (IN, PORT, SLV, RTU);
Q := MySlave.Q;
FBD Language
LD Language
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MBSlaveUDP |
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IEC 61131-3 Automation platform > Drivers - Fieldbus configuration > MODBUS Slave > Driver-specific information > Driver specific function blocks > MBSlaveUDP |
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