Network Send Instruction - Send(90) - Omron CS1W-SLK11-21 - 06-2004 Manual

PLC Network Instructions
6-2-5

NETWORK SEND Instruction - SEND(90)

Format
Ladder Symbol
(90)
SEND S
Variations
@SEND(90)
Control Data
Note
1,2,3...
The SEND(90) instruction allows a PLC to write data to the memory of a
device located at a node on a local or remote network.
The format of the SEND(90) instruction is as follows:
Operand Data Areas
S: 1
D C
D: 1
C: 1
*Indirect addressing only
Set the destination node address to $FF to broadcast the data to all nodes in
the designated network or to $00 to send to a destination within the node of
the PLC executing the send.
Word Bits 00 to 07
C Number of words (1 to 256 in 4-digit hexadecimal, i.e., $0001 to $0100)
C+1 Destination network address
(0 to 127, i.e., $00 to $7F)
C+2 Destination unit address
C+3 Bits 00 to 03: No. of retries
(0 to 15 Hex, i.e., $0 to $F)
Bits 04 to 07: Set to 0.
C+4 Response monitoring time ($0001 to $FFFF = 0.1 to 6553.5 seconds)
Transmissions cannot be sent to the PLC executing the send.
1. Number of Words
Set the total number of words to be transferred.
2. Destination Network Address
Set the destination network address to 00 if the destination network ad-
dress is a local network. If more than one SYSMAC LINK Unit, Controller
Link Unit, or Ethernet Unit is mounted to the PLC, the network of the Unit
with the smallest unit address will be considered to be the local network.
3. Destination Node Address
Set the destination node address to FF for broadcasting within the local
network. Set to 00 (and set the network address to 00) for transmission to
a device at the local node.
4. Destination Unit Address
Set the destination unit to 00 if the destination is a PLC. If the destination
is a user's application on a computer (NSB), set the destination unit ad-
dress to 01 (user application 1).
Destination
PLC (CPU)
NSB (computer)
CPU Bus Unit
Inner Board
Unit connected with the network
st
source word CIO, W, H, A, T, C, DM, DR*, IR*
st
destination word CIO, W, H, A, T, C, DM, DR*, IR*
st
control word CIO, W, H, A, T, C, DM, DR*, IR*
Bits 08 to 15: Set to 0.
Destination node address
Bits 08 to 11: Port number ($0 to $7)
Bit 12 to 14: Set to 0.
Bit 15: ON: No response.
Address (hexadecimal)
00
01 (user application)
10 to 1F: Unit No. 0 to F (0 to 15)
E1
FE
Section 6-2
Bits 08 to 15
OFF: Response returned.
97