Omron CVM1-CLK21, CS1W-RPT01, CJ1W-CLK21-V1, C200HW-CLK21, CQM1H-CLK21 C200HX/HG/HE PLCs, @SEND90

Introduction	Section 6-1
C200HX/HG/HE PLCs
SEND	SEND transmits “n” words beginning with S (the beginning source word for
	data transmission at the source node) to the “n” words beginning with D (the
	beginning destination word for data reception at destination node N).

@SEND(90)

S

D

C

			Source node
		15		0
S: Source node beginning send word		S			"n" number
D: Destination node beginning receive word			…		of send
C: Source node first control data word					words
					n
15 14	0
C

"n" number of send words

0000 to 03DE (Hex): 0 to 990 words

0:Destination network address not specified (local network)

1:Destination network address specified.

Destination node N

150

D

… n

1514131211 8 7 0

C +1 1

Number of retries

0 to F (Hex): 0 to 15 retries Direct/Indirect

0:Direct; 1: Indirect

0:Response required

1:Response not required

0:Operating level 1

1:Operating level 0

Response monitor time

00 (Hex):	2 s (for 2 Mbps)
	4 s (for 1 Mbps)
	8 s (for 500 Kbps)
01 to FE (Hex):	0.1 to 25.4 s (unit: 0.1 s)
FF (Hex):	No response monitoring

Always "1" for Controller Link Networks

15 8 7 0

C + 2

C + 3

Destination unit address

00 (Hex): PLC's CPU Unit

01 to 0F (Hex): Computer (user program)

(02 to 0F (Hex) are used when using Controller Link Support Boards for PCI Bus only.)

10 to 1F (Hex):	Unit nos. 0 to 15
FE (Hex):	Unit connected to network
15		0
	0		0

Destination node address (N)

01 to 20 (Hex): 1 to 32 (or 01 to 3E (Hex): 1 to 62)

The same data can be broadcast to all nodes on the network by setting the destination node address to FF (Hex).

The range of node addresses will vary for networks other than Controller Link Networks.

Destination network address 00 (Hex): Local network 01 to 7F (Hex): 1 to 127

This setting is enabled only when Destination network address specified" is set in word C. When specifying a destination network address, set all the nodes in the routing tables. For details on routing tables, refer to Section 7 Network Interconnections.

Note 1. When communicating in the same network with a CVM1 or CV-series PLC manufactured prior to April 1996, the local network address cannot be set to “00.” Set a number other than “00” as the local network address in the routing tables, and then specify that number.

2.With the message service, there is no guarantee that a message to a des- tination node will reach its destination. It is always possible that the mes- sage may be lost in transit due to noise or some other condition. When using the message service, it is advisable to prevent this situation from oc- curring by performing resend processing at the node where instructions are issued. With the SEND, RECV, and CMND instructions, resend pro- cessing is performed automatically once the number of retries has been set, so be sure to specify a number other than “0” for the number of retries.

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