Cutler-Hammer D320 PLC, User Manual

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Chapter 6: Instructions
161
Instruction
Mnemonic Word Data Send Range
Bit
■ Word
SEND Word data send command using
link network
Double words
Ladder
Read NR5 words from NR6, and write them to link
network NN1, station NN2, register type NN3,
address NR4.
Description
1. NN1: Link network number (number).
NN2: Station number on the link network (number).
NN3: Register type to write (number):
0: L register
1: M register
2: R register
3: K register
4: T/C Setting Value (SV)
5: T/C Present Value (PV)
6: W register
7: F register
NR4: Starting address of the register to write (number/register).
NR5: Number of words to write (number/register).
NR6: Starting address of register to read (number/register).
2. The link network loop number is a number from 1 to 3. The first link module in the base rack
is assigned network ID 1, the second is 2, and the third is link network 3.
3. The SEND instruction can write up to 56 words at a time (NR5 = 1 to 56).
4. The SEND instruction can only by executed once in a given scan. To prevent writing over the
link network more than once per scan, place the SEND instruction at the end of the program.
Example
Program Expression Operation Results
Verify that the first link module (F3.3) has been installed
and sent through the first module (F3.10). Then, write two
words from R0 (Fr = 2:R0) to link network 1, station 4
(Nt = 1:4), register type R, address 4 (To = 2:4).
SEND
Nt = NN1:NN2
To = NN3:NR4
Fr = NR5:NR6
R
NNx: number (1 to 3)
NRx: number/register
RRx: register
SEND
Nt = 1:4
To = 2:4
Fr = 2:R0
F3.3 F3.10