Omron SYSMAC C200HW-PCS01-EV1, Руководство по эксплуатации

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8-1 Outline
The SEND(90) and RECV(98) instructions are used in the PC user program to
send data from a PC to other nodes, such as PCs or computers.
8-1-1 Specifying Destination Nodes
Either of the following two communications modes is used depending on how
destination nodes are specified:
Node-to-node Data Transfer Data can be transferred between the local node and the destination node by
specifying the node address in the control data of the SEND(90) and RECV(98)
instructions.
Send data
Receive data
Node 1 Node 2 Node 3 Node 4 Node 5
Broadcasting The same data can be sent to all nodes on the network by specifying 00 as the
node address of the destination node. In this case, no response is received from
the nodes. (Broadcasting is not applicable to RECV(98).)
Broadcast data
Node 1 Node 2 Node 3 Node 4 Node 5
8-1-2 Communications Specifications
PC communications are based on the following specifications:
Item Specifications
Direction of
transmission 1:1 SEND(90) and RECV(98) instructions
1:N SEND(90) instruction (broadcast mode, no response,
N = 127 or less)
Data length SEND(90): 1,000 words max. (2,000 bytes) (727 words
when data is broadcast or sent to local node)
RECV(98) : 1,000 words max. (2,000 bytes)
Data contents The following data is sent or received when each instruction is
executed:
SEND(90): Data transmission request and response data
RECV(98): Data reception request and response data
Response
monitoring time 00: Default (2.2 seconds)
01 to FF: User setting (approx. 0.1 to 25.5 seconds in 0.1 s
increments)
No. of retries 0 to F: 0 to 15 times
UDP Port No. 9600 is used for SEND/RECV.
Outline
Section 8-1