The interbus pcp telegram, The interbus pcp telegram -8 – Rockwell Automation 160IB1 InterBus Communication Module User Manual

Page 34

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6–8

Using the 160-IB1 on InterBus

The InterBus PCP Telegram

The Peripherals Communication Protocol (PCP) of InterBus supports
2 different types of independent data transmission.

The 3 words that were mapped previously in this chapter, is the
process data channel which is the cyclic transmitted I/O data to start/
stop the drive and provide reference and feedback. The parameter
data channel is much slower, working around the process data
channel, to read/write parameters to the drive.

The parameter data channel is handled by the InterBus master and
transmits a frame of information only when required.

This form of messaging is performed by copying data to and from the
SST-IBS-SLC card M0 and M1 files. Therefore the SST-IBS-SLC
card needs to be setup to support the PCP telegram.

If starting from scratch create a new project using RSLogix500
software and select the I/O Configuration to specify the processor,
Digital Input card and SST-IBS-SLC. If you are using an existing
configuration you will need to modify to suit.

Note that the example configuration below has an additional SST card
in slot 2. This is not used in the following example.

The Scanner is configured for the rack with generic ID = 13635.

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