Rung 2:1, Rung 2:2 – Rockwell Automation 1403-NENET Ethernet Communication Card Installation Instructions User Manual

Page 68

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Publication 1403-IN005A-EN-P

C-8 Sample Ladder Listing

Rung 2:1

Initialize the sequencer for
configuration mode. This includes
loading the sequencer input file with
the configuration block transfer
numbers, setting the sequencer
length, clearing the sequencer
position and moving the reset word
into the sequencer’s output file.

Rung 2:2

If the configuration MSG Write and
diagnostic MSG Read are done,
check that the diagnostic table
parameters indicate a successful MSG
Write (word 36 and 37
equal 0). If so, unlatch the
configuration mode bit and latch the
setpoint mode bit.

Initialize for appropriate mode

0001

S:1

15

First pass

COP

Copy File
Source

#N11:0

Dest

#N10:0

Length

3

MOV

Move
Source

2
2<

Dest

R6:0.LEN

17<

InitializeSequencer
length

CLR

Clear
Dest

R6:0.POS

1<

Initialize sequencer
position

MOV

Move
Source

N10:0

0<

Dest

N9:0

40<

Initialize sequencer
address

Begin setpoint mode once configurationis complete

0002

B3:0

0

Config mode

N55:0

13

Config
MSG write done

N52:0

13

Status
MSG read done

EQU

Equal
Source A

N82:36

0<

Source B

0
0<

Status

-

Bad table check

B3:0

0

Config mode

B3:0

1

Setpoint mode

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