Controller Link Units Operation Manual

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Introduction Section 6-1

RECV RECV receives “m” words beginning with S (the beginning word for data

transmission at the destination node, M) to the words from D (the beginning

word for data reception at the source node) onwards.

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-

Direct/Indirect

0: Direct; 1: Indirect

S: Destination node beginning send word

D: Source node beginning receive word

C: Source node first control data word

Destination node MSource node

C + 2

@RECV(98)

"m" number of send words

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

C + 1 1

0: Operating level 1

1: Operating level 0

Always " 1" for Controller Link Networks

0: Response required

1: Response not required

Destination (transmission source) node address (M)

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

The range of node addresses will vary for networks