Remote i/o examples (cont.), Example #2 – ladder logic program (cont.) – Rockwell Automation 150 USE MN/SMC DIALOG + CONTROLLER User Manual

Page 125

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8-16

Serial Communications

Remote I/O Examples (cont.)

Example #2 – Ladder Logic Program (cont.)

B3:0

Rung 2:4
This rung sets up the BT buffer for a BTR and sets the Virtual BT_Enable.

1

7

Rung 2:5
This rung copies the BTR data from the 1747-SN, clears the Virtual BT_Enable, and clears the User Logic Bit.

Rung 2:6
This rung copies the BT information to the 1747-SN for execution.

L

10

I:1.0

User
Logic

BTR_Avail

Virtual
BTW = 0
BTR = 1

N10:0

15

L

N10:0

Virtual
BT_Enable
Bit

I:1.0

10

13

7

N10:0 N10:100

BTR_Avail Virtual

BTW = 0
BTR = 1

Virtual
BT Done
Bit

15

U

N10:0

Virtual
BT_Enable
Bit

COP

COPY FILE
Source
Dest
Length

User
Logic

1

U

B3:0

COP

COPY FILE
Source
Dest

Length

Rung 2:7

END

#M1:1.100

#N10:100

74

#N10:0

#M0:1.100

74

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