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Programming the 1747-slc, I/o mapping – Rockwell Automation 284G ArmorStart - User Manual User Manual

Page 152

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6-2

Explicit Messaging on DeviceNet™

Programming the 1747-SLC

I/O Mapping

The following example will utilize the Standard Distributed Motor
Controller and the factory default input and output assembly of 160
and 161. Refer to Appendix B, Bulletin 280G/281G CIP Information
for additional assembly formats. The default input and output
assemblies are shown in the table below with the corresponding data
size.

Table 6.1

Message Type (I/O Assembly)

If a different I/O assembly is selected, the data size may change. It is
important to understand that the I/O assembly selected here will
directly affect the input and output mapping in the scanner’s scanlist
and the amount of Programmable Logic Controller (PLC) memory
reserved for this information.

Table 6.2

Example SLC Input Addressing (Produced Assembly)

)

Table 6.3

Example SLC Output Addressing (Consumed Assembly)

)

The example PLC program for the SLC will use the “Tripped” and
the “140M On” bit from the produced assembly and the “Fault
Reset”, “User Out A”, and “Run Fwd” bit from the consumed
assembly.

Data Size (bytes)

Instance 160 – Consumed (output)

1 (Rx)

Instance 161 – Produced (input)

2 (Tx)

Instance 161 Default Produced Standard Distributed Motor Controller

Byte 0

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Address

I:1.23

I:1.22

I:1.21

I:1.20

I:1.19

I:1.18

I:1.17

I:1.16

Data

Reserved

Reserved

Reserved

Ready

Running Rev

Running Fwd

Warning

Tripped

Byte 1

Bit 15

Bit 14

Bit 13

Bit 12

Bit 11

Bit 10

Bit 9

Bit 8

Address

I:1.31

I:1.30

I:1.29

I:1.28

I:1.27

I:1.26

I:1.25

I:1.24

Data

Reserved

Reserved

140M On

HOA

User In 3

User In 2

User In 1

User In 0

Instance 160 Default Consumed Standard Distributed Motor Controller

Byte

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Address

O:1.23

O:1.22

O:1.21

O:1.20

O:1.19

O:1.18

O:1.17

O:1.16

Data

Reserved

Reserved

Reserved

Reserved

Reserved

Fault Reset

Run Rev

Run Fwd

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