TAMAGAWA TS530N33E9 TS530N33E9 TS530N33E9 TS530N33E9 TS530N33E9 TS530N33E9

TS530N33E9

Guang Zhou Lai Jie Electric Co.,LTD

Please contact with “Tommy” for the price

TS3664N12E4

TS3667N1E1

TS3667N1E2

TS3667N2E4

TS3667N1E3

TS3667N2E5

TS3667N2E6

TS3667N3E7

TS3667N3E8

TS3667N11E1

TS3667N11E2

TS3667N12E4

TS3667N11E3

TS3667N12E5

TS3667N12E6

TS3667N31E7

TS3667N13E8

TS3624N1E1

TS3624N1E2

TS3624N2E3

TS3624N2E4

TS3624N3E5

TS3624N3E6

TS3630N1E1

TS3630N1E2

TS3630N2E3

TS3630N2E4

TS3630N3E5

MB_COMM_LOAD: One execution of MB_COMM_LOAD is used to set up PtP port
paraers like baud rate, parity, and flow control. After a CPU port is configured for the
Modbus RTU protocol, it can only be used by either the MB_MASTER or MB_SLAVE
instructions.
● MB_MASTER: The Modbus master instruction enables the CPU to act as a Modbus RTU
master device and communicate with one or more Modbus slave devices.
● MB_SLAVE: The Modbus slave instruction enables the CPU to act as a Modbus RTU
slave device and communicate with a Modbus master device.
Modbus TCP instructions in your program
● MB_CLIENT: Make client-server TCP connection, send command message, receive
response, and control the disconnection from the server
● MB_SERVER: Connect to a Modbus TCP client upon request, receive Modbus message,
and send response MB_CLIENT communicates as a
Modbus TCP client through the
PROFINET connector on the S7-
1200 CPU. No additional
communication hardware module
is required.
MB_CLIENT can make a clientserver
connection, send a
Modbus function request, receive
a response, and control the
disconnection from a Modbus
TCP server.FALSE = No Modbus communication request
TRUE = Request to communicate with a Modbus TCP server
DISCONNECT IN Bool The DISCONNECT paraer allows your program to control connection
and disconnection with a Modbus server device.
If DISCONNECT = 0 and a connection does not exist, then MB_CLIENT
attempts to make a connection to the assigned IP address and port number.
If DISCONNECT = 1 and a connection exists, then a disconnect operation is
attempted. Whenever this input is enabled, no other operation will be
attempted.
CONNECT_ID IN UInt The CONNECT_ID paraer must uniquely identify each connection within
the PLC. Each unique instance of the MB_CLIENT or MB_SERVER
instruction must contain a unique CONNECT_ID paraer.
IP_OCTET_1 IN USInt Modbus TCP server IP address: Octet 1
8-bit part of the 32-bit IPv4 IP address of the Modbus TCPserver to which
the client will connect and communicate using the Modbus TCP protocol.
IP_OCTET_2 IN USInt Modbus TCP server IP address: Octet 2
IP_OCTET_3 IN USInt Modbus TCP server IP address: Octet 3
IP_OCTET_4 IN USInt Modbus TCP server IP address: Octet 4
IP_PORT IN UInt Default value = 502: The IP port number of the server to which the client will
attempt to connect and ultimately communicate using the TCP/IP protocol.Mode Selection: Assigns the type of request (read, write, or diagnostic). See
the Modbus functions table below for details.
MB_DATA_ADDR IN UDInt Modbus starting Address: Assigns the starting address of the data to be
accessed by MB_CLIENT. See the Modbus functions table below for valid
addresses.
MB_DATA_LEN IN UInt Modbus data Length: Assigns the number of bits or words to be accessed in
this request. See the Modbus functions table below for valid lengths
MB_DATA_PTR IN_OUT Variant Pointer to the Modbus data register: The register buffers data going to or
coming from a Modbus server. The pointer must assign a standard global
DB or a M memory address.
DONE OUT Bool The DONE bit is TRUE for one scan, after the last request was completed
with no error.
BUSY OUT Bool  0 - No MB_CLIENT operation in progress
 1 - MB_CLIENT operation in progress
ERROR OUT Bool The ERROR bit is TRUE for one scan, after the MB_CLIENT execution was
terminated with an error. The error code value at the STATUS paraer is
valid only during the single cycle where ERROR = TRUE.
STATUS OUT Word Execution condition code
REQ paraer
FALSE = No Modbus communication request
TRUE = Request to communicate with a Modbus TCP server
If no instance of MB_CLIENT is active and paraer DISCONNECT=0, when REQ=1 a new
Modbus request will start. If the connection is not already established then a new connection
will be made.
If the same instance of MB_CLIENT is executed again with DISCONNECT=0 and REQ=1,
before the completion of the current request, then no subsequent Modbus transmission will
be made. However, as soon as the current request is completed, a new request can be
processed if MB_CLIENT is executed with REQ=1.
When the current MB_CLIENT communication request is complete, the DONE bit is TRUE
for one cycle. The DONE bit can be used as a time gate to sequence multiple MB_CLIENT
requests. Once a Modbus client initiates a Modbus operation, all the input states are saved internally
and are then compared on each successive call. The comparison is used to determine if this
particular call was the originator of the active client request. More than one MB_CLIENT call
can be performed using a common instance DB.
As a result, it is important that the inputs are not changed during the period of time that a
MB_CLIENT operation is actively being processed. If this rule is not followed, then a
MB_CLIENT cannot determine that it is the active instance. MB_DATA_ADDR assigns the starting Modbus address of the data to be accessed. The
MB_CLIENT instruction uses a MB_MODE input rather than a function code input.
The combination of MB_MODE and MB_DATA_ADDR values determine the function code
that is used in the actual Modbus message. The following table shows the correspondence
between paraer MB_MODE, Modbus function, and Modbus address rangeThe data buffer can be in a standard global DB or M memory address.
For a buffer in M memory, use the standard Any Pointer format. This is in the format P#"Bit
Address" "Data Type" "Length", an example would be P#M1000.0 WORD 500.