
Configuring a Modbus Plus Network in Concept with Peer Cop
870USE10110 July 2004 321
Specifying References for Input Data
Introduction This section describes how to specify the references for input data. In this example,
you will start by accessing the device at Modbus Plus address 2, which is a 170 ADI
340 00 16-point input module.
Device
Requirements
When you use Peer Cop to handle a Modbus Plus I/O architecture, you need to be
aware of the type of I/O you are configuring at each network address. Peer Cop does
not know that the device at address 2 is a discrete 16-point input module. You need
to know that a specific input reference with a length of one word (16 bits) is required
to handle this module.
We will assign a 3x register (300016) as a specific input to the CPU. When the 170
ADI 340 00 sends input data to the CPU, it will be sent to this register.
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